Manufactured by CHG Bearing, the NU28/630 is a precision Single Row Cylindrical Roller Bearings. Key dimensional parameters include a 630 mm bore diameter, a 780 mm outer diameter, and a 88 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
NU28/630 - Single Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NU28/630 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Single Row Cylindrical Roller Bearing |
| Number of Rows | Single Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 630 mm |
| Width (B) | 88 mm |
| Outer Diameter (D) | 780 mm |
| Bore Diameter Tolerance | -0.050 – 0 mm |
| Outside Diameter Tolerance | -0.075 – 0 mm |
| Width Tolerance | -0.50 – 0 mm |
| Enveloping Circle Diameter Fw | 671 mm |
| Inner Ring Chamfer | 4 min mm |
| Outer Ring Chamfer | 4 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1510 kN |
| Basic Static Load Rating C0 (kN) | 3690 kN |
| Material | |
| Mass (kg) | 91.8 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
NU28/630 780 mm 630 mm 88 mm 671 mm Frequently Asked Questions about NU28/630 Single Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing NU28/630 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Single Row Cylindrical Roller Bearings.
Yes, 100% of NU28/630 Single Row Cylindrical Roller Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
To safeguard CHG Bearing NU28/630 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (630 mm x 780 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To extend the trouble-free lifespan of CHG Bearing NU28/630, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
