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High-precision dental handpiece bearing
Type | Size(mm) | Features | Limiting Speed(rpm) | Application for handpiece | ||
Bore(d) | O.D(D) | Width(B) | ||||
SR142-Z | 3.175 | 6.35/5.97 | 2.38 | one-side of dust cover, groove | 350000~400000 | North Pole Handpiece |
SR143-Z | 3.175 | 6.35/5.97 | 2.78 | one-side of dust cover, groove | 350000~400000 | German Kovo |
SR143-ZT | 3.175 | 6.35/5.97 | 2.78 | one-side of dust cover, groove | 350000~400000 | Grman Kovo |
BSR143-Z | 3.175 | 6.35/5.97 | 2.78 | one-side of dust cover, integral retainer | 350000~400000 | German Kovo |
SR145-Z | 3.175 | 6.35 | 2.38 | one-side of dust cover | 350000~400000 | Northwest Handpiece, NSK Handpiece |
SR145-ZT | 3.175 | 6.35 | 2.38 | one-side of dust cover | 350000~400000 | Northwest Handpiece, NSK Handpiece |
SRJ145-Z | 3.175 | 6.35 | 2.78 | one-side of dust cover | 350000~400000 | W&H Handpiece, Northwest Handpiece |
SRJ145-ZT | 3.175 | 6.35 | 2.78 | one-side of dust cover | 350000~400000 | W&H Handpiece, Northwest Handpiece |
FSR146-Z | 3.175 | 6.35/7.5 | 2.78 | one-side of dust cover, flanged | 350000~400000 | Shanghai Handpiece |
FSR146-ZT | 3.175 | 6.35/7.5 | 2.78 | one-side of dust cover, flanged | 350000~400000 | Shanghai Handpiece |
SR148-Z | 3.175 | 7.938 | 3.571 | one-side of dust cover | 350000~400000 | BeinAir Handpiece |
Remarks: S-Stainless steel inner/outer ring R-Standard model Z-Dust cover T-Ceramic balls F-Flanged | ||||||
Materials of bearings and bearing retainer:
- Inner and Outer ring: imported stainless steel 440c;
- Balls: imported stainless steel balls or imported ceramic balls;
- Bearing retainer: The bearing retainer we have developed is made of fabroil, the oil rate can reach15%. It’s self-sliding, which can improve the service life of the bearing.
High-precision dental handpiece bearing
