1 confidential copyright © 2009 nsk micro precision co., ltd. all rights reserved comparative...

1 Confidential Copyright © 2009 NSK MICRO PRECISION CO., Ltd. All Rights Reserved

Comparative Testing on HP

Messrs: ProDrive System

Comparative testing on KaVo and Star handpieces with ISC turbines, Myonic turbines and Barden turbines has been conducted

【 Items 】　１） RPM 　　　２） Noise 　　　３） Torque

【 Testing Devices/Procedures 】　・ RPM ： Portable Tachometer HR-6800 （ # １）　・ Air Pressure ： Pressure gauge of sent device （ Original pressure ： 5kgf/cm2 approx. ）　・ Noise 　： Noise gauge LA-1350 （ # ２）　・ Torque ： Jigs + Push-pull gauge + Stand （ # ３）

KGCH Ref # ０９１４６

November 11, 2009

NSK Micro Precision

Quality Assurance Dept

【 Testing Result 】　 Please refer to P2~P9.

石'09.11.- 9

川

鈴木'09.11.- 9

茂


10㎜

Tachometer

Hand piece

Sensor

# １ . RPM Testing procedure/devices

＊ RPM is measured on the magnetized HP head (Turbine installed)


Comparison - RPM

Kavo635B

40.340.7

36.9 37.1

40.641.1

37.1

38.1

35

38

41

44

47

50

ISC-S ISC-C MYONIC-S MYONIC-C

× 104rpm Star430

44.5

47.8

44.9

44.0 44.1

44.5

49.4

46.9

45.045.5

35

38

41

44

47

50

ISC- S ISC- C MYONIC- S MYONIC- C BARDEN- C

× 104rpm

ISC-S ISC-CISC-S ISC-C


Noise Gauge

Screen

Hand piece

# ２ . 　 Noise Testing procedure/devices

35mm


Comparison -Noise【 Noise data taken at 350,000rpm 】

Kavo635B

89 8990 90

9293

90

94

72

74

76

78

80

82

84

86

88

90

92

94

96

ISC- S ISC- C MYONIC- S MYONIC- C

dB Star430

83

80

84

83

79

8889

91

74

82

72

74

76

78

80

82

84

86

88

90

92

94

96


dB

ISC-S ISC-C ISC-S ISC-C


Push-pull gauge(Fixed to the

stand ）

Base

Pedestal

BlockGauge

Bar

HP holder

Fastening band

Fulcrum

Holderstand

Standarm

# ３ . 　 Torque testing procedure/devices

The moment load at the time of rotation stop is measured by

pushing a push-pull gauge onto hand piece head


Comparison - Torque

Kavo635B

0.22 0.22

0.24

0.22

0.24 0.24

0.26

0.24

0.20

0.22

0.24

0.26

0.28

0.30

0.32

0.34

0.36

ISC- S ISC- C MYONIC- S MYONIC- C

kgf Star430

0.24 0.24

0.28

0.260.25

0.24

0.32

0.34

0.32

0.35

0.20

0.22

0.24

0.26

0.28

0.30

0.32

0.34

0.36


kgf

ISC-S ISC-C ISC-S ISC-C


＊ 1.Air pressure to sent device ： 5kgf/cm2 （ 71.1psi ）　　　＊ 2.Noise data taken at 350,000 rpm

RPM ＊ 1 AP＊ 1 Noise＊ 2 Torque＊ 1

(×104rpm) (psi) (dB) (kgf)

SIL50－ 0077 － 0165 44.5 40 83 0.24 Lowest Torque － 0124 － 0069 49.4 39 79 0.24 Highest RPM/ Lowest Torque － 0219 47.8 40 74 0.30 Lowest Noise － 0006 49.3 41 77 0.322JE20－ 0055 45.3 41 88 0.28 － 0035 46.9 41 80 0.34 － 0051 44.9 40 83 0.32 － 0097 45.0 39 86 0.28 － 0091 44.2 39 82 0.26 － 0098 44.0 41 89 0.32 Lowest RPM2IL50－ 0198 44.1 42 84 0.35 Highest Torque － 0211 45.2 42 86 0.25 － 0203 45.5 40 91 0.30 Highest Noise2JC12－ 044 40.3 39 92 0.24 － 070 40.6 39 89 0.22 Lowest Noise/ Lowest Torque － 065 41.1 40 89 0.22 Highest RPM/ Lowest Noise/ Lowest TQ － 042 40.7 40 93 0.24 － 057 36.9 40 90 0.26 Lowest RPM － 066 37.1 40 90 0.24 － 092 38.1 40 94 0.22 Highest Noise － 099 37.1 40 90 0.24

N/AISC-C

MYONIC-S

MYONIC-C

Turbine # Comment

Kavo635B ISC-S

ISC-C

MYONIC-S

MYONIC-C

Star430 ISC-S N/A

Item

BARDEN-C


OVERVIEWISC Dental Turbine Bearings

Star430 ： Ceramic version is rated as the Highest RPM ・ Lowest Noise　　　　　　　　　（ Torque is rated average among three ）

Kavo635B ： Ceramic version is rated as the Highest RPM ・ Lowest Noise　　　　　　　　　（ Torque is rated average among three ）

Comparison data proves that ISC dental ceramic bearingsComparison data proves that ISC dental ceramic bearings

perform the best quality among threeperform the best quality among three 　　　　　　　　　　

1 confidential copyright © 2009 nsk micro precision co., ltd. all rights reserved comparative...

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