Manufactured by CHG Bearing, the 6307H is a precision Metric Stainless Steel Deep Groove Ball Bearings. Key dimensional parameters include a 35 mm bore diameter, a 80 mm outer diameter, and a 21 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.

6307H - Metric Stainless Steel Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6307H |
| SAE52100 Option | No |
| Dimensions | |
| Bore Diameter (d) | 35 mm |
| Width (B) | 21 mm |
| Outer Diameter (D) | 80 mm |
| Radius rs min | 1.5 mm |
| Performance | |
| Dynamic Load Cr (N) | 28290 N |
| Static Load C0r (N) | 15270 N |
| Grease Speed (x1000 rpm) | 8.5 x1000 rpm |
| Oil Speed (x1000 rpm) | 10 x1000 rpm |
| Design Configurations | |
| Open Model | 6307H |
| ZZ Suffix | ZZ |
| 2RS Suffix | 2RS |
| 2RU Suffix | 2RU |
| TTS Suffix | - |
| Internal Design & Weight | |
| Cage Type | R,J |
| Ball Qty. Z | 8 |
| Ball Size Dw | 13.494 mm |
| Shielded Weight (g) | 457 g |
6307H 80 mm 35 mm 21 mm Frequently Asked Questions about 6307H Metric Stainless Steel Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 6307H is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Engineered according to international ISO boundary plans, CHG Bearing supplies 6307H with a precision bore diameter (d) of 35 mm, an outside diameter (D) of 80 mm, and a nominal ring width (B) of 21 mm. This configuration yields an effective cross-sectional wall thickness of 22.5 mm and an envelope ratio (D/d) of 2.29, delivering compact rigidity for OEM machinery housings.
To ensure optimum performance of CHG Bearing 6307H Metric Stainless Steel Deep Groove Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 35 mm bore. For the 80 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Each 6307H 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 (35 mm bore side) ensures perfect planar contact without edge binding.
