The NACHI NJ2204 is a small size cylindrical roller bearings with ISO dimensions 20×47×18 mm. Bearings in the 20mm bore range are commonly used in lathe spindles, gearboxes, printing rollers, cold rolling mills. This is an open type, requires periodic lubrication, suitable for clean environments variant. NACHI Japan — bearings and cutting tools, strong in machine tool applications — 6 equivalent brands available under ISO designation NJ2204.
NACHI NJ2204
Cylindrical Roller Bearings — 20×47×18 mm — ISO NJ2204
Technical Specifications
Full specifications for NACHI NJ2204 per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO NJ2204 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| NACHI | NJ2204 |
| fag | NJ2204 |
| nsk | NJ2204 |
| ntn | NJ2204 |
| skf | NJ2204 |
| zvl | NJ2204 |
| koyo | NJ2204 |
| timken | NJ2204 |
* C/C₀ may vary ±5% across manufacturers.
Compare NJ2204 Across Brands
Same interchangeable dimensions — different load ratings and pricing.
FAQ — NACHI NJ2204
Quick answers to common questions.
Common Applications
Cylindrical Roller Bearings with 20mm bore diameter are commonly used in lathe spindles, gearboxes, printing rollers, cold rolling mills.
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