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TMDBMaintenance-freeBearing Solutions
BGG
Technical Information
an EnPro Industries company
BEARING TECHNOLOGY
BGG
Quality
All the products described in this brochure are manufactured under ISO/TS 16949 and ISO 14001 approved quality manage-ment systems.
All certificates are available for download on our website www.ggbearings.com.
Brazil
France
Slovakia USA
Germany
China
2
3
Content
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
TM1.1 DB Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
TM1.2 DB Properties and Advantages. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
TM2 DB in Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
TM3.1 DB Standard Bronze Alloys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Fits and Tolerances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Mating Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Specific Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Sliding Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.3 pv Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Material Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.5 Lifetime Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TM5 DB Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Forms and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Radial Bearings – Flanged Bushes – Thrust Washers . . . . . . . . 15
8 Spherical Bearings – Standard C Series . . . . . . . . . . . . . . . . . . 16
9 Spherical Bearings – Standard E Series. . . . . . . . . . . . . . . . . . . 17
10 Data for Bearing Design Calculation . . . . . . . . . . . . . . . . . . . . . 18
Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.1 DB Solid Lubricants
2.2 Running-in Film DB
2.3 Wear and Friction Properties
4
1 Introduction
TM1.1 DB Structure
1 Support (bronze)
2 Solid lubricant insert
3 Sliding surface with running-in film
TMDB bearings consist of a support particular bearing are based on the
structure cast from one of four requirements of the specific applica-
available high-quality bronze alloys. tion and operating conditions.
Embedded in this structure are solid
lubricant inserts or plugs, providing
continuous lubrication for low friction
and wear rates and long service life.
The inserts, supplemented with an
applied running-in film, are arranged
for optimal distribution of the lubricant
over the life of the bearing. This struc-
ture provides an ultra-low coefficient of
friction, maximum wear resistance,
extended service and corrosion resis-
tance, even in wet, dirty environments
and exposure to seawater. The bronze
alloy and lubricant selected for a
3
2
1
Today's equipment and systems place extensive bearing materials and tech-
enormous demands on bearing nical application knowledge across a
performance and economics. Not only wide range of industries. Our appli-
are bearings expected to perform cation engineering team can provide
under increasingly challenging con- assistance in:
ditions with minimal to no main-
tenance, they are also expected to
deliver greater reliability, longer service
life and lower cost of ownership.
Self-lubricating, maintenance-free DB™
bearings are designed for applications
with high specific loads, long dwell
periods under static loading, and low
sliding speeds, as well as applications
that cannot be conventionally lubri-
cated. In addition, they can be used to
replace existing greased bearings.
GGB brings more than 60 years of
experience and accumulated expertise
in self-lubricating bearings, offering
! Selection of the optimal type of
bearing for your application
! Design with either standard or cus-
tom products
! Calculation of estimated life expec-
tancy
! Assembly and installation
GGB offers the most advanced bearing
materials in the industry, supported by
laboratory testing in state-of-the-art
facilities, produced to the highest
quality standard, and certified to DIN
ISO 9001:2000, ISO/TS 16949:2002,
and DIN EN ISO 14001.
5
1Introduction
TM1.2 DB Properties and Advantages
1.3 Applications
! !Maintenance-free operation Low coefficient of friction
! !High load capacity Negligible stick-slip effect
! !Excellent performance under high Low wear rate for long lifeloads and intermittent movements
! Solid lubricant with superior perfor-mance
Max. static load p MPa 80 150 200
Max. dynamic load p MPa 50 80 100
Max. sliding speed v m/s 0.5
Maximum pv MPa x m/s 1.0 1.0 1.5
Max. temperature °C 250 320 350
Min. temperature °C - 50
Friction coefficient f (dry) 0.05 - 0.18
Min. shaft hardness HB
Shaft surface finish Ramm 0.2 - 0.8
(ground)
Units DB-B DB-C DB-DProperties
Potential applications for DB™ bear- struction, agricultural and other off-
ings include but are not limited to road equipment. The bearings are also
hydro-mechanical equipment such as suitable for use in iron foundries, steel
segment, miter and emergency gates, plants, offshore installations and civil
slewing rings, wind power compo- engineering projects such as bridges
nents, large valves, heavy machinery, and other structures.
cranes and conveyors, mining, con-
Flanged bushesCylindrical bushes
Thrust washers
All bearings are provided with a running-in film, which is not shown.
Slide plates
180 300
Self-aligning bearings
TMTable 1: DB Properties
6
2 TMDB in Operation
Two solid surfaces sliding against one shear the weakest planes in the areas another produce friction resulting in of contact. This process of repeated wear. This friction in turn is a result of: bonding and separation results in
material loss and wear. !Surface adhesion or micro-welding
!Plowing or penetration by surface asperities or third-body particles
!Surface deformation
Adhesive wear results from the formation and destruction of localized bonds at the mating surfaces. To continue sliding, the surfaces must
The self-lubricating properties of DB™ results in higher friction, damaging
bearings offer improved overall perfor- wear and premature bearing failure.
mance compared with conventionally
lubricated bearings, particularly where
external lubrication with grease or oil is
difficult to maintain. These lubricants
can be expelled from the contact zone
under high loads, during long dwell
periods, under static contact, or even
under normal rotating or oscillating
motion. This lubricant starvation often
The use of polymers and other solid bearings provide consistent friction
lubricants reduces adhesive friction and wear performance over their useful
and wear between sliding metal sur- life.
faces. The running-in film and PTFE or
graphite inserts in DB™ bearings sepa-
rate their sliding layers from mating
surfaces. The bearings are designed to
maintain a solid lubricating film even
when they are not moving. This en-
sures low friction and wear even under
high static loads. By delivering a con-
stant supply of solid lubricant, the
Unlubricated Operation
Operation with External Lubrication
Operation with Solid Lubricant
Hydrodynamic lubricating film
Solid lubricant film
Solid lubricant film
Solidlubricant insert
steel
bronze
steel
bronze
steel
bronze
7
2TMDB in operation
TM2.1 DB Solid Lubricants
2.3 Wear and Friction Properties
TM2.2 Running-in Film DB
The special PTFE- or graphite-based in the bearing is critical to its perfor-
solid lubricants used in DB™ bearings mance.
have been extensively tested under Designed to overlap in the sliding
laboratory conditions and proven in direction, they ensure optimum lubri-
numerous successful applications. cant transfer to the mating surface. In
The solid lubricant plugs are produced addition there is no electrolytic or
by a proprietary process which results chemical reaction with the support or
in high density and lubricity, and are mating material, even when the
inserted into pockets in the bronze bearings are subjected to high humi-
support. The distribution of these plugs dity or submerged in water.
The primary factors affecting the some humidity, for example, the value
friction of DB™ bearings are pressure, could be as low as 0.06; under lower
velocity, temperature and mating loads and high temperatures it could
surface condition, with pressure being reach 0.15. For DB™ bearings calcula-
the most influential. Coefficient of tions, assume a coefficient of friction
friction and wear rates are subject to of 0.15 to 0.17.
many factors. Under high loads and
DB™ bearings are supplied with a thin Some of the film is transferred to the
film of solid lubricant to facilitate the mating surface with initial movement of
running-in process. It is applied after the bearing. This is the start of a
the lubricant plugs have been inserted transition period which continues until
and the surface has been finish the solid lubricant is released from the
machined. pockets. This material transfer pro-
vides:The running-in film has a thickness of
! Constant low coefficient of friction15 μm to 20 μm and should not be ! Negligible stick-slip effectremoved. In the event of damage to the
film during assembly, spray cans of ! Immediate full load capacity.lubricant can be used for on-site repair.
8
3 Technical data
TM3.1 DB Standard Bronze Alloys*
3.2 Fits and Tolerances
TMFor applications where standard DB alloys are not suitable, we are able to supply special materials
Assembly involves pressing a DB™ cooling is recommended for bearings
bearing with an interference fit between with ODs >200mm. Our application
the outer diameter (OD) and the engineering team can provide a de-
housing bore (Figure 1), and between tailed procedure for this method.
the inner ring and the shaft. Due to the
high insertion forces required, super-
Stan- Alloy Stan- Alloy ASTM DIN Density Tensile Yield E Hard-dard No. dard No. % of % of g/cm³ strength strength % (in ness
weight weight MPa[ksi] MPa[ksi] 50 mm) HB
Cu 83 Cu 83B 584 2.1090.01
Sn 7 Sn 7B 271 C93200 1705 2.1090.03 8.85 207 [30] 97 [14] 15 75
Pb 7 Pb 6,5B 505 2.1090.04
Zn 3 Zn 3,5
B 584 2.0975.01 Cu 81 Cu 79,5
B 148 2.0975.02 Ni 4 Ni 5C95500 1714 7.50 620 [90] 275 [40] 6 190
B 271 2.0975.03 Fe 4 Fe 4,75
B 505 2.0975.04 Al 11 Al 9,5
Cu 61 Cu 63,5B 584
2.0598.01 Zn 27 Zn balanceB 271
C86300 1709 2.0598.02 Fe 3 Fe 2,75 7.70 758 [110] 414 [60] 12 210B 22
2.0598.03 Al 6 Al 5B 505
Mn 3 Mn 3,75
long.
DB grade
DB-B
DB-C
DB-D
DB-E
ASTM DIN Composition Mechanical Properties Application
* The above shown figures are based on ASTM B271 (centrifugal casting) and intended for general information only. GGB application engineering team will
make the appropriate selection based on your application data. The feasibility of some standard alloys depends upon the dimensional and geometric
requirements of each project. Please consult our application engineers for detailed information. Density depends on surrounding temperature and
percentage of each alloy component in the material.
TMTable 2: DB Standard Bronze Alloys
Figure 1: Fitting of Bearings
D £ 120mmo D >120mmo
15 - 30°
for
D£ 1
25
= 0
,8H
for
D>
12
5 =
2H
Note:Lightly oil back of bush to assist assembly
Standard
material -
fulfills most
application
requirements
High load
capacity
with maximum
corrosion
resistance
Highest load
capacity,
but less
corrosion
resistance
than DB-C
9
3Technical data
4Design
TM4 DB Design Factors
!The main parameters for determining Mating surface material
the size or calculating the service life of ! Temperature T [°C]a DB™ bearing include:
! Other factors, e.g. design, housing ! Specific load limit p [MPa]lim material, lubrication, dirt and external ! pv factor [MPa x m/s] influences
! Mating surface roughness Ra [μm]
3.3 Mating material
4.1 Specific Load
TMThe counterface material (shaft) must DB alloy is used, the hardness of the
have appropriate characteristics, such shaft should exceed that of the bronze
as: hardness, surface finish and corro- by at least 100 HB.
sion resistance. When a not standard
Dimension (for bearing bore £ 200 mm) Tolerance Surface finish (mm)
Housing bore H7 3.2
Bush outer Ø s6 3.2
Bearing bore (before assembly) E8 1.2
Bearing bore (after assembly) H10 1.2
Shaft Ø d8 0.2 - 0.8
Concentricity bearing bore / bush outer Ø IT9
Dimension (for bearing bore £ 200 mm) Tolerance Surface finish (mm)
For bearing bores > 200 mm, toleran- parameters of each application. Your
ces should be specified by our appli- specific application may require spe-
cation engineering team based on the cial fitting instructions.
Table 3: Assembly data - cylindrical and flanged bearings
Recommended fitting and tolerance ranges
The specific load p is defined as the working load divided by the projected area
of the bearing and is expressed in MPa.
(4.1.1)
(4.1.2)
(4.1.3)
(4.1.4)
p=
p=
p=
p=
F
4F
F
F
.D Bi
.p (D - D )o i
.L W
.d Ck
Bushes
Thrust Washers
Slide Plates
Spherical Bearings
[MPa]
[MPa]
[MPa]
[MPa]
2 2
10
4 Design
4.2 Sliding Speed
The sliding speed v [m/s] is calculated as follows:
(4.2.1)
(4.2.3)
(4.2.2)
(4.2.4)
v=
v=v=
v=3.60 10
3.60 10 3.60 10
3.60 10
360360
. .D p Ni
. p
. . p N
D +Do i
D +Do i
2
2
.D pi.4j Nosz .4j Nosz
Bushes*
Bushes*
Thrust Washers
Thrust Washers
[MPa]
[MPa]
[MPa]
[MPa].
.
TM*For DB spherical bearings sliding speed calculations, replace D by d .i k
Continuous Rotation
Oscillating Movement
4.3 pv Factor
TMThe useful operating life of a DB bearing is governed by the pv factor, which
is calculated as follows:
(4.3.1)
.pv = p v
[MPa x m/s]
jj
1 432
Figure 2: Oscillating cycle j
11
4Design
4.4 Material Selection
Material selection should be guided by GGB application engineers. For quick
reference the following chart provides a generic interactive method of material
selection:
Is the sliding speed
v below 0,5 m/s?
Consult
GGB Engineering
Consult
GGB Engineering
Is the specific load
p below 80 MPa?Yes No
No
No
Yes
Yes
Yes
Yes
Yes
No
Is corrosion
an issue?
Is the specific load
p below 200 MPa?
Is pv below
1,0 MPa x m/s?
Consider to use
DB-B
NoNo
No
No
Yes Will the bearing work
submerged in water?
Consider to use
DB-C
Consider to use
DB-D
Is pv below
1,5 MPa x m/s?
For working temperatures ≤180°C consider white PTFE-based plugs; for working
temperatures >180°C consider black graphite-based plugs. Maximum working
temperature depends upon the properties of the bronze alloy. Consult GGB
Engineering if your application temperature exceeds the limits of DB™ standard
alloys.
12
4 Design
4.5 Lifetime Estimation
Estimated bearing life is useful in of laboratory tests, simulating the
confirming the suitability of the conditions to which the bearing will be
bearing alloy selected for a particular subjected. The effect of certain condi-
application. On page 18 you will find a tions, especially the presence of abra-
form for entering required data for sive particles, cannot be fully repro-
bearing design calculation. Based on duced in the laboratory. Therefore no
the data, our application engineers lifetime warranties are given unless
can estimate bearing life. expressly declared in writing upon
receipt of written confirmation of all It is important to note that these
application data. calculations are based on the results
Type of load
DB™ bearings exhibit optimum perfor- and/or longer bearing life. Bearing
mance under steady unidirectional performance under dynamic loads,
loads, which reduce fatigue loads and which reduce load capacity, also
effectively increase load capacity. This depends upon fatigue resistance of
allows smaller bearings to be used the material.
Shaft and Bearing Motion
DB™ bearings perform best in a ing life. Conversely if the mating ma-
stationary position against a rotating terial is stationary, the opposite effect
or oscillating mating material. In this occurs; as wear proceeds, the arc of
configuration the arc of contact contact is reduced and contact pres-
increases with wear and the contact sure increases, shortening bearing
pressure decreases, extending bear- life.
Chemical products
Corrosion
GGB can provide guidance with However it is recommended that
regard to the chemical compatibility of chemical resistance be confirmed by
DB™ bearings. testing whenever possible.
Corrosion resistance depends largely electrolytic corrosion can occur, such
on the lubricant, bearing and mating as high humidity atmospheres or
surface materials. Graphite-based submerged equipment. In this case
plugs should never be used where PTFE-based plugs are recommended.
13
TMDB Specification 5
S 15 00 300 DBC 16 - S 1 Sliding plate identification
Plate thickness in mm
Constant
Plate width in mm
Material identification (DBB, DBC, DBD, DBE)
Lubricant plug and running-in film (16 for PTFE, 11 for graphite)
Special part, i.e. grooves, non-standard tolerance
Duplication No.
Part number for sliding plates (example):
Flanged part identification
Bearing ID in mm
Bearing OD in mm
Bearing width in mm
Material identification (DBB, DBC, DBD, DBE)
Lubricant plug and running-in film (16 for PTFE, 11 for graphite)
Special part, i.e. grooves, non-standard tolerance
Duplication No.
Part number for flanged bearings (example):
Bearing ID in mm
Bearing OD in mm
Bearing width in mm
Material identification (DBB, DBC, DBD, DBE)
Lubricant plug and running-in film (16 for PTFE, 11 for graphite)
Special part, i.e. grooves, non-standard tolerance
Duplication No.
Part number for cylindrical bearings (example):
Machined thrust washer identification CW - segments/half/split washers
Washer OD in mm
Washer Thickness (2 digits – ie. 2 mm = 20, 111 mm = 11
Material identification (DBB, DBC, DBD, DBE)
Lubricant plug and running-in film (16 for PTFE, 11 for graphite)
Special part, i.e. grooves, non-standard tolerance
Duplication No.
Part number for thrust washers (example):
BB 300 350 300 DBC 16 - S 1
300 350 300 DBC 16 - S 1
MW 350 30 DBC 16 - S 1
Part number for cylindrical bearings (example):
Part number for flanged bearings (example):
Part number for thrust washers (example):
Part number for sliding plates (example):
Spherical bearing identification
Spherical bearing inner ring material
SS - stainless steel
CS - hard chrome plated carbon steel
Inner ring ID (d) in mm
Material Identification (DBB, DBC, DBD, DBE)
Lubricant plug and running-in film (16 for PTFE, 11 for graphite)
Special part, i.e. grooves, non-standard tolerance
Duplication No.
Part number for spherical bearings (example): SB SS 350 DBC 16 - S 1
TMAll DB parts are not stock items. The quotations. Your inquiry must always
part numbering system presented be provided with additional application
above is intended for general use only conditions and sketches to our tech-
and interpretation of product codes nical analysis.
used by GGB in our prints and
Part number for spherical bearings (example):
14
6 Forms and Dimensions
Radial bearings
Spherical bearings Pintle bearings
Axial bearings / Thrust washers
B
Di
Do
ST
Di
Do
B
C
d dkD
D £ 150 mm - lubricant plugs in through holesi
D >150 mm - lubricant plugs in blind holesi
Combined radial and axial bearings
B1
B
Bfl
ST
Di
D1
Dfl
Do
D £ 150 mm - lubricant plugs in through holesi
D >150 mm - lubricant plugs in blind holesi
Sliding plates
SS L
Movement
W
Dimensions according to drawing
r1
r2
D d
h
TMDB bearings are not stock items. following table such as axial and
Custom-manufactured to specific radial segments, half-shells and
requirements, they can readily be others. For reasons of economy,
produced from drawings providing however, the types and sizes shown
special dimensions and tolerances, in the following tables should be
and in forms not included in the used whenever possible.
All bearings are provided with a running-in film, which is not shown for optical reasons.
15
7 Radial Bearings / Flanged Bushes / Thrust Washers Dimensions–
Radial bearings Flanged bushes - Thrust washers
1012141516202225283035404550556065707580859095
100110120140150
180200
225
250
280300
350
400
450
500
550
600
650
700
750800850900950
10001200
1518202022262832353844505560657076828895
100105110115125135160170
200220
250
275
310330
380
435
490
540
590
640
700
750
800850900950
100010601260
1012141516202225283035404550556065707580859095
100110120140150
180200
225
250
280300
350
400
450
500
550
600
650
700
750*800*850*900*950*
1000*1200*
79
101112151618212226303335404545505560606570758090
100110
135150
170
190
210225
260
300
340
375
415
450
490
525
560600640675710*750*900*
13151819202528323538445056657075808590
100105115120125140150175185
225250
280
315
350375
435
500
560
625
690
750*
815*
875*
940*1000*1060*1125*1200*1250*1500*
1012141516202225283035404550556065707580859095
100110120140150
180200
225
250
280300
350
400
450
500
550
600
650
700
750800850900950
10001200
185205
230
255
285305
355
405
455
510
560
610
660
710
760810860910960
10101210
1518202022262832353844505560657076828895
100105110115125135160170
200220
250
275
310330
380
435
490
540
590
640
700
750
800850900950
100010601260
2022252628323438424550607080859095
100105110115120130140150160180190
230250
275
300
340360
420
480
530
600
650
720
780
840
900960
10201080114012001440
2,53,03,03,03,03,03,03,53,54,04,55,05,05,05,05,05,56,06,57,57,57,57,57,57,57,5
10,010,0
10,010,0
12,5
12,5
15,015,0
15,0
17,5
20,0
20,0
20,0
20,0
25,0
25,0
25,025,025,025,025,030,030,0
* Splitted in length (2 x 0.5) for technical reasons
Fla
ng
ed
bu
sh
Cylin
dri
cal b
ush
an
d t
hru
st
wash
er
Di Di D1 Do Dfl B / Sfl T B
1.0 x Di 0.75 x Di 1.25 x Di
Do recom. min max
Lengthmm
Flangethickn.
Diametermm
Diametermm
Length B mm
B /
S =
fla
ng
e o
r w
ash
er
thic
kn
ess
flT
Len
gth
B =
B +
B/
S w
here
B =
bu
sh le
ng
th a
nd
1fl
T1
16
8 Spherical Bearings – Standard C Series – Dimensions and Load Capacity
ISO 12240-1 C Series
ISO 12240-1 C Series
DB-B
DB-D
Radial [kN]
Radial [kN]
Axial [kN]
Axial [kN]
d
d
dk
dk
r1
r1
r2
r2
a
a
dynamic
dynamic
static
static
dynamic
dynamic
static
static
d1
d1
D
D
B
B
C
C
320340360380
400420440460480
500530560
600630670
710750
800850
900950
320340360380
400420440460480
500530560
600630670
710750
800850
900950
440460480520
560560600620650
670710750
800850900
9501000
10601120
11801250
440460480520
560560600620650
670710750
800850900
9501000
10601120
11801250
160160160190
190190218218230
230243258
272300308
325335
355365
375400
160160160190
190190218218230
230243258
272300308
325335
355365
375400
135135135160
160160185185195
195205215
230260260
275280
300310
320340
135135135160
160160185185195
195205215
230260260
275280
300310
320340
1,11,11,11,5
1,51,51,51,52
222
233
33
33
34
1,11,11,11,5
1,51,51,51,52
222
233
33
33
34
3334
4444
5555
566
66
66
67,5
3334
44445
555
566
66
66
67,5
4334
33333
334
333
33
33
33
4334
33333
334
333
33
33
33
1.0401.0401.0401.460
1.4601.4601.9501.9502.170
2.1702.4002.640
3.0203.8603.860
4.3104.470
5.1405.480
5.8406.600
3.7003.7003.7005.200
5.2005.2006.9606.9607.730
7.7308.5509.400
10.76013.75013.750
15.38015.950
18.31019.550
20.83023.520
1.7301.7301.7302.430
2.4302.4303.2503.2503.610
3.6104.0004.400
5.0306.4306.430
7.1907.460
8.5609.140
9.74011.000
6.1806.1806.1808.680
8.6808.680
11.60011.60012.890
12.89014.25015.670
17.94022.92022.920
25.64026.580
30.52032.590
34.72039.200
Notes:1.Load capacity indicated above is intended for preliminary orientation. It is recommended that our application team evaluates each project. 2.The loads indicated above are the maximum limits under very low sliding speeds.3.Standard spherical bearing sizes per ISO 12240-1; Sizes can also be determined based on specific application operational data. All spherical
bearings are manufactured on customer request and are not available ex-stock.
340360380400
425445465485510
530560590
635665710
755800
850905
9601015
340360380400
425445465485510
530560590
635665710
755800
850905
9601015
375390410440
465480515530560
580610645
690730800
820870
915975
10301090
375390410440
465480515530560
580610645
690730800
820870
915975
10301090
3.6803.8204.0205.120
5.4105.5806.9207.1307.940
8.2209.090
10.080
11.54013.80015.120
16.40017.710
19.96021.980
23.97026.950
13.11013.64014.34018.240
19.27019.89024.68025.40028.290
29.30032.39035.920
41.11049.17053.890
58.42063.110
71.12078.310
85.39096.010
DB-C
Radial [kN] Axial [kN]
dynamic static dynamic static
3.0503.0503.0504.290
4.2904.2905.7405.7406.380
6.3807.0507.750
8.87011.34011.340
12.68013.150
15.10016.120
17.18019.390
5.0905.0905.0907.150
7.1507.1509.5709.570
10.630
10.63011.75012.920
14.79018.90018.900
21.14021.920
25.16026.870
28.63032.320
10.81011.24011.82015.040
15.89016.40020.35020.94023.320
24.16026.71029.620
33.90040.54044.430
48.17052.040
58.64064.570
70.41079.170
18.02018.74019.70025.060
26.49027.34033.92034.91038.880
40.27044.52049.370
56.50067.58074.060
80.29086.730
97.730107.610
117.350131.950
6.1306.3806.7008.530
9.0109.300
11.54011.88013.230
13.70015.15016.800
19.23023.00025.210
27.33029.520
33.27036.630
39.95044.920
21.86022.73023.90030.400
32.12033.16041.14042.33047.150
48.83053.99059.880
68.52081.95089.810
97.370105.190
118.530130.510
142.320160.030
17
Spherical Bearings – Standard E Series – Dimensions and Load Capacity9
ISO 12240-1 E Series
ISO 12240-1 E Series
DB-CDB-B
DB-D
Radial [kN]Radial [kN]
Radial [kN]
Axial [kN]Axial [kN]
Axial [kN]
d
d
dk
dk
r1
r1
r2
r2
a
a
dynamicdynamic
dynamic
staticstatic
static
dynamicdynamic
dynamic
staticstatic
static
d1
d1
D
D
B
B
C
C
505560708090
100110120140160180
200220240260280
300
505560708090
100110120140160180
200220240260280
300
758590
105120130
150160180210230260
290320340370400
430
758590
105120130
150160180210230260
290320340370400
430
354044495560
70708590
105105
130135140150155
165
354044495560
70708590
105105
130135140150155
165
283236404550
555570708080
100100100110120
120
283236404550
555570708080
100100100110120
120
556266778898
109120130150170192
212238265285310
330
556266778898
109120130150170192
212238265285310
330
66748092
105115
130140160180200225
250275300325350
375
66748092
105115
130140160180200225
250275300325350
375
0,60,61111
11111
1,1
1,11,11,11,11,1
1,1
0,60,61111
11111
1,1
1,11,11,11,11,1
1,1
111111
11111
1,1
1,11,11,11,11,1
1,1
111111
11111
1,1
1,11,11,11,11,1
1,1
776665
766786
78876
7
776665
766786
78876
7
390500610780
1.0001.220
1.5201.6402.3902.6903.4103.840
5.3405.8706.4007.6308.970
9.610
130170200260340410
520560810910
1.1601.300
1.8102.0002.1802.6003.050
3.270
470610740950
1.2201.480
1.8501.9902.9003.2604.1404.660
6.4707.1207.7709.260
10.880
11.650
650840
1.0201.3101.6802.040
2.5402.7403.9804.4805.6906.400
8.9009.790
10.68012.72014.950
16.020
220280340440570690
860930
1.3501.5201.9302.180
3.0303.3303.6304.3305.090
5.450
7901.0201.2401.5802.0402.480
3.0803.3204.8305.4406.9007.770
10.79011.87012.95015.43018.130
19.430
130170210260330410
500500820820
1.0701.070
1.6701.6701.6702.0302.410
2.410
40507090
110140
170170270270360360
570570570690820
820
150200260320410500
610610990990
1.3001.300
2.0302.0302.0302.4602.930
2.930
210280360440560690
840840
1.3701.3701.7801.780
2.7902.7902.7903.3804.020
4.020
7090
120150190230
280280460460600600
950950950
1.1501.370
1.370
260340430540680840
1.0201.0201.6601.6602.1702.170
3.3903.3903.3904.1004.880
4.880
Notes:1.Load capacity indicated above is intended for preliminary orientation. It is recommended that our application team evaluates each project. 2.The loads indicated above are the maximum limits under very low sliding speeds.3.Standard spherical bearing sizes per ISO 12240-1; Sizes can also be determined based on specific application operational data. All spherical
bearings are manufactured on customer request and are not available ex-stock.
18
10 Data for Bearing Design Calculation
Application:
Project / No.:
Quantity: New Design Existing Design
Special parts(sketch)
Bearing Type:
B
Di
Do
Cylindricalbushing
ST
Do
Di
Thrust washer
SS
W
L
Slideplate
Rotational movement
Steady load
Rotating load
Oscillating movement
Linear movement
BBfl
Di
Do
Dfl
Flangedbushing
Customer Information
Company
Fax
Street
City / Post Code
Name
Tel.
Date / Signature
Steady load
Spherical bearing
Rotatingload
B
BF
Di
Do
Operating Environment
Ambient temperature T [°]amb
Housing with good heating transfer properties
Light pressing or insulated housing with poor heat transfer properties
Non metal housing with poor heat transfer properties
Alternate operation in water and dry
Lubrication
Process fluid
Lubricant
Dynamic viscosity h
Dry
Continuous lubrication
Process fluid lubrication
Initial lubrication only
Hydrodynamic conditions
Mating Surface
Material
Hardness HB/HRC
Surface finish Ra [mm]
Fits and Tolerances
Shaft DJ
Bearing housing DH
Dimensions [mm]
Inside diameter Di
Outside diameter Do
Length B
Outer ring length BF
Flange diameter Dfl
Flange thickness Bfl
Wall thickness ST
Length of slideplate L
Width of slideplate W
Thickness of slideplate SS
Service Life
Required service life - years
Operating Time
Continuous operation
Intermittent operation
Service hours per day
Days per year
Movement
Rotational speed
Speed v [ms]
Length of stroke L [mm]S
Frequency of stroke [1/min]
Oscillating angle j [°]
Oscillating freq. N [1/min]OSZ
N [1/min]
Load
Radial load F- static [N]- dynamc [N]
Axial load F- static [N]- dynamic [N]
Specific load p- radial [MPa]- axial [MPa]
19
Product Information
GGB and DB are trademarks of
©2010 GGB. All rights reserved.
TM TM GGB
Visit us on the internet:
www.ggbearings.com
GGB gives an assurance that the products described in this GGB’s sales and delivery terms and conditions, included as an
document have no manufacturing errors or material deficien- integral part of quotations, stock and price lists, apply absolute-
cies. The details set out in this document are registered to assist ly to all business conducted by GGB. Copies can be made avail-
in assessing the material's suitability for the intended use. They able on request.
have been developed from our own investigations as well as
from generally accessible publications. They do not represent Products are subject to continual development. GGB retains
any assurance for the properties themselves. the right to make specification amendments or improvements
to the technical data without prior announcement.
Unless expressly declared in writing, GGB gives no warranty
that the products described are suited to any particular purpose
or specific operating circumstances. GGB accepts no liability
for any losses, damages or costs however they may arise Edition 2010 (This edition replaces earlier editions which hereby
through direct or indirect use of these products. lose their validity).
IN201ENG06-10USA
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. .Thorofare New Jersey 08086 USA Tel. +1-856-848-3200Fax +1-856-848-4552
.eMail: [email protected] www.ggbearings.com
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