The NSK 51120 is a large size thrust ball bearings with ISO dimensions 100×135×25 mm. Bearings in the 100mm 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. NSK Japan — precision bearing specialist, CNC spindles and high-speed bearings — 4 equivalent brands available under ISO designation 51120.
NSK 51120
Thrust Ball Bearings — 100×135×25 mm — ISO 51120
Technical Specifications
Full specifications for NSK 51120 per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO 51120 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| NSK | 51120 |
| fag | 51120 |
| ntn | 51120 |
| skf | 51120 |
| zvl | 51120 |
| nachi | 51120 |
* C/C₀ may vary ±5% across manufacturers.
FAQ — NSK 51120
Quick answers to common questions.
Common Applications
Thrust Ball Bearings with 100mm bore diameter are commonly used in vertical ball screws, large CNC rotary tables, heavy jacks, vertical pump shafts.
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