Manufactured by CHG Bearing, the 6304H is a precision Metric Stainless Steel Deep Groove Ball Bearings. Key dimensional parameters include a 20 mm bore diameter, a 52 mm outer diameter, and a 15 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.

6304H - Metric Stainless Steel Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6304H |
| SAE52100 Option | No |
| Dimensions | |
| Bore Diameter (d) | 20 mm |
| Width (B) | 15 mm |
| Outer Diameter (D) | 52 mm |
| Radius rs min | 1.1 mm |
| Performance | |
| Dynamic Load Cr (N) | 13490 N |
| Static Load C0r (N) | 6310 N |
| Grease Speed (x1000 rpm) | 14 x1000 rpm |
| Oil Speed (x1000 rpm) | 17 x1000 rpm |
| Design Configurations | |
| Open Model | 6304H |
| ZZ Suffix | ZZ |
| 2RS Suffix | 2RS |
| 2RU Suffix | 2RU |
| TTS Suffix | - |
| Internal Design & Weight | |
| Cage Type | R,J |
| Ball Qty. Z | 7 |
| Ball Size Dw | 9.525 mm |
| Shielded Weight (g) | 144 g |
6304H 52 mm 20 mm 15 mm Frequently Asked Questions about 6304H Metric Stainless Steel Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects 6304H to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Each 6304H produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (20 mm bore side) ensures perfect planar contact without edge binding.
To safeguard CHG Bearing 6304H against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (20 mm x 52 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Every production batch of CHG Bearing 6304H Metric Stainless Steel Deep Groove Ball Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
