The NTN 51310 is a standard size thrust ball bearings with ISO dimensions 50×95×31 mm. Bearings in the 50mm bore range are commonly used in vertical ball screws, large CNC rotary tables, heavy jacks, vertical pump shafts. This is an open type, requires periodic lubrication, suitable for clean environments variant. NTN Japan — Japanese technology, consistent quality, strong in automotive and machine tool bearings — 4 equivalent brands available under ISO designation 51310.
NTN 51310
Thrust Ball Bearings — 50×95×31 mm — ISO 51310
Technical Specifications
Full specifications for NTN 51310 per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO 51310 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| NTN | 51310 |
| fag | 51310 |
| nsk | 51310 |
| skf | 51310 |
| zvl | 51310 |
| nachi | 51310 |
* C/C₀ may vary ±5% across manufacturers.
FAQ — NTN 51310
Quick answers to common questions.
Common Applications
Thrust Ball Bearings with 50mm bore diameter are commonly used in vertical ball screws, large CNC rotary tables, heavy jacks, vertical pump shafts.
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