NSK Handpiece Bearing Cross-Reference Guide
Check your handpiece model below to find the correct bearing kit. All dimensions in mm (ID x OD x W).
| NSK Model (Series) | Handpiece Type | Bearing Size (mm) | Feature | Our Part # |
|---|---|---|---|---|
| Pana-Max (Standard Head) | High Speed | 3.175 x 6.35 x 2.38 | Ceramic / Shielded | SR144TLZ |
| Ti-Max X (X600 / X700) | High Speed | 3.175 x 6.35 x 2.38 | Ceramic | SR144TLZ-C |
| Ti-Max Z (Z800 / Z900) | High Speed | 3.175 x 6.35 x 2.78 | Ceramic (Stepped) | SR144TLK |
| S-Max M (M600) | High Speed | 3.175 x 6.35 x 2.38 | Ceramic | SR144TLZ |
| Mini Head (Torque) | High Speed | 3.00 x 6.00 x 2.00 | Steel / Ceramic | MR63ZZ |
| FX Series (Contra Angle) | Low Speed | 4.00 x 7.00 x 2.00 | Steel | MR74ZZ |
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Why Choose Our Bearings for NSK Repairs?
Focus on Clean Head System:
“NSK handpieces often feature the Clean Head System, which prevents oral fluids from entering the turbine. Our replacement bearings are designed with specialized shields (ZZ or 2RS) that complement this system, ensuring contaminants do not reach the raceway, thus extending the bearing life even in harsh environments.”
Focus on Material:
“For the popular Ti-Max and Pana-Max series, we utilize ABEC-7 angular contact bearings with ceramic balls. These are specifically pre-loaded to handle the radial and axial loads typical of NSK’s high-torque rotor design, providing a stable and vibration-free operation at speeds up to 400,000 RPM.”
Not sure which bearing fits your NSK handpiece?
Don’t guess. Send us a photo of your turbine or the old bearing. Our technicians will identify the correct ISO part number for you within 1 hour.
FAQ for NSK
Can I replace just the bearings in my NSK canister, or do I need a whole new cartridge?
While NSK often sells complete cartridges, professional repair shops can save significant costs by replacing just the bearings. Our SR144TLZ and SR144TLK bearings are sized perfectly to fit into standard NSK canisters. However, you will need a bearing press tool to remove the old
Are these bearings compatible with the new Ti-Max Z series?
Yes. The Ti-Max Z series uses a specific bearing dimension (often slightly wider or with a stepped outer ring depending on the sub-model). Please consult our cross-reference table or send us a photo of your turbine rotor, and we will identify the exact ISO part number for your Z800 or Z900 handpiece.
Do you support the NSK Phatelus series?
Yes, we stock replacement bearings for older legacy models including Phatelus and Mach-Lite. Even if the handpiece is discontinued, we likely have the bearings to keep it running.
What is the lifespan of your ceramic bearings for NSK turbines?
Under proper lubrication and maintenance conditions, our ceramic bearings typically last 9-12 months in high-volume clinics, matching the performance of OEM Japanese bearings. We recommend using a high-quality synthetic lubricant to maximize lifespan.