Manufactured by CHG Bearing, the 63803 is a precision Metric Super-Thin Deep Groove Ball Bearings. Key dimensional parameters include a 17 mm bore diameter, a 26 mm outer diameter, and a 7 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.

63803 - Metric Super-Thin Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 63803 |
| Dimensions | |
| Bore Diameter (d) | 17 mm |
| Width (B) | 7 mm |
| Outer Diameter (D) | 26 mm |
| Radius rs min | 0.3 mm |
| Flange Df | 28 mm |
| Flange Width Bf | 1.5 mm |
| Performance | |
| Dynamic Load Cr (N) | 2233 N |
| Static Load C0r (N) | 1456 N |
| Grease Speed (x1000 rpm) | 26 x1000 rpm |
| Oil Speed (x1000 rpm) | 30 x1000 rpm |
| Design Configurations | |
| Open Model | 63803 |
| Flanged Open Model | F63803 |
| Shielded Model | 63803ZZ |
| Flanged Shielded Model | F63803ZZ |
| 2RS | 2RS |
| 2RU | 2RU |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | J, TW |
| Ball Qty. Z | 16 |
| Ball Size Dw | 2.381 mm |
| Shielded Weight (g) | 11 g |
| Flanged Shielded Weight (g) | 12 g |
63803 26 mm 17 mm 7 mm Frequently Asked Questions about 63803 Metric Super-Thin Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Beyond standard alloy steel, CHG Bearing can customize the 63803 Metric Super-Thin Deep Groove Ball Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Each 63803 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 (17 mm bore side) ensures perfect planar contact without edge binding.
The CHG Bearing 63803 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.
Quality starts with raw material selection: CHG Bearing crafts 63803 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
