The NSK 51203 is a small size thrust ball bearings with ISO dimensions 17×35×12 mm. Bearings in the 17mm bore range are commonly used in CNC rotary tables, couplings, hydraulic jacks, small vertical motor shafts. This is an open type, requires periodic lubrication, suitable for clean environments variant. NSK Japan — precision bearing specialist, CNC spindles and high-speed bearings — 4 equivalent brands available under ISO designation 51203.
NSK 51203
Thrust Ball Bearings — 17×35×12 mm — ISO 51203
Technical Specifications
Full specifications for NSK 51203 per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO 51203 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| NSK | 51203 |
| fag | 51203 |
| ntn | 51203 |
| skf | 51203 |
| zvl | 51203 |
| nachi | 51203 |
* C/C₀ may vary ±5% across manufacturers.
FAQ — NSK 51203
Quick answers to common questions.
Common Applications
Thrust Ball Bearings with 17mm bore diameter are commonly used in CNC rotary tables, couplings, hydraulic jacks, small vertical motor shafts.
Need a Quote for NSK 51203?
Engineers ready for bearing selection, cross-reference, and same-day quotation.