Manufactured by CHG Bearing, the 503739 is a precision Double Row Angular Contact Ball Bearings. Key dimensional parameters include a 180 mm bore diameter, a 280 mm outer diameter, and a 92 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.
503739 - Double Row Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 503739 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Angular Contact Ball Bearing |
| Number of Rows | Double Row |
| Load Direction | Combined |
| Dimensions | |
| Bore Diameter (d) | 180 mm |
| Width (B) | 92 mm |
| Outer Diameter (D) | 280 mm |
| Minimum Chamfer Dimension rmin | 2.1 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 299 kN |
| Basic Static Load Rating C0 (kN) | 453 kN |
| Material | |
| Mass (kg) | 21.8 kg |
| Cage Material | Brass |
503739 280 mm 180 mm 92 mm Frequently Asked Questions about 503739 Double Row Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 503739 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.
Each 503739 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 (180 mm bore side) ensures perfect planar contact without edge binding.
Engineered according to international ISO boundary plans, CHG Bearing supplies 503739 with a precision bore diameter (d) of 180 mm, an outside diameter (D) of 280 mm, and a nominal ring width (B) of 92 mm. This configuration yields an effective cross-sectional wall thickness of 50.0 mm and an envelope ratio (D/d) of 1.56, delivering compact rigidity for OEM machinery housings.
In its sealed configuration (Open Type), CHG Bearing pre-charges 503739 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
