The NTN 51208 is a standard size thrust ball bearings with ISO dimensions 40×68×19 mm. Bearings in the 40mm 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. NTN Japan — Japanese technology, consistent quality, strong in automotive and machine tool bearings — 4 equivalent brands available under ISO designation 51208.
NTN 51208
Thrust Ball Bearings — 40×68×19 mm — ISO 51208
Technical Specifications
Full specifications for NTN 51208 per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO 51208 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| NTN | 51208 |
| fag | 51208 |
| nsk | 51208 |
| skf | 51208 |
| zvl | 51208 |
| nachi | 51208 |
* C/C₀ may vary ±5% across manufacturers.
FAQ — NTN 51208
Quick answers to common questions.
Common Applications
Thrust Ball Bearings with 40mm bore diameter are commonly used in CNC rotary tables, couplings, hydraulic jacks, small vertical motor shafts.
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