Manufactured by CHG Bearing, the HKB040XP0 is a precision Thin Section Four-Point Contact Ball Bearings. Key dimensional parameters include a 101.6 mm bore diameter, a 117.475 mm outer diameter, and a 7.9375 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.

HKB040XP0 - Thin Section Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKB040XP0 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | KB |
| Seal Type | Open |
| Load Direction | Radial, Bidirectional Axial and Moment |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 101.6 mm |
| Width (B) | 7.9375 mm |
| Outer Diameter (D) | 117.475 mm |
| Bore Diameter Tolerance | -0.02-0 mm |
| Outside Diameter Tolerance | -0.015-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 107.4674 mm |
| Outer-Ring Land Diameter (L2 / D1) | 111.5822 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 7780 N |
| Basic Dynamic Radial Load Rating Cr (N) | 4850 N |
| Basic Static Axial Load Rating C0a (N) | 19430 N |
| Basic Dynamic Axial Load Rating Ca (N) | 7650 N |
| Material | |
| Mass (kg) | 0.14 kg |
| Ring Material | Stainless Steel / Bearing Steel |
| Cage Material | Brass / PEEK / Polyimide / Phenolic Resin Fabric Laminate |
| Ball Material | Stainless Steel / Bearing Steel / Ceramic |
| Operating Temperature Range (°C) | -50 to +100 °C °C |
| Precision Class | P0 |
| Radial Internal Clearance | -0.066-0.041 mm |
HKB040XP0 117.475 mm 101.6 mm 7.9375 mm Frequently Asked Questions about HKB040XP0 Thin Section Four-Point Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing HKB040XP0 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (101.6 mm x 117.475 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing HKB040XP0 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 HKB040XP0 with a precision bore diameter (d) of 101.6 mm, an outside diameter (D) of 117.475 mm, and a nominal ring width (B) of 7.9375 mm. This configuration yields an effective cross-sectional wall thickness of 7.9 mm and an envelope ratio (D/d) of 1.16, delivering compact rigidity for OEM machinery housings.
Model HKB040XP0 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 101.6 mm) and steep thermal gradients between inner and outer rings.
