Manufactured by CHG Bearing, the 71913P4 is a precision Angular Contact Ball Bearings（718 / 719 SERIES）. Key dimensional parameters include a 65 mm bore diameter, a 90 mm outer diameter, and a 13 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.
71913P4 - Angular Contact Ball Bearings（718 / 719 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71913P4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Angular Contact Ball Bearing |
| Series | 719 |
| Seal Type | Open / Contact Seal Options |
| Load Direction | Radial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 65 mm |
| Width (B) | 13 mm |
| Outer Diameter (D) | 90 mm |
| Bore Diameter Tolerance | -0.007-0 mm |
| Outside Diameter Tolerance | -0.008-0 mm |
| Width Tolerance | -0.15-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 19.1 kN |
| Basic Static Radial Load Rating C0r (kN) | 19.4 kN |
| Limiting Speed – Grease (r/min) | 9000 r/min |
| Limiting Speed – Oil (r/min) | 12000 (r/min) |
| Material | |
| Mass (kg) | 0.211 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 |
| Precision Class | P4 |
| Radial Internal Clearance | 0.008-0.028 mm |
71913P4 90 mm 65 mm 13 mm Frequently Asked Questions about 71913P4 Angular Contact Ball Bearings（718 / 719 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects 71913P4 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 71913P4 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 (65 mm bore side) ensures perfect planar contact without edge binding.
Quality starts with raw material selection: CHG Bearing crafts 71913P4 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.
To extend the trouble-free lifespan of CHG Bearing 71913P4, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
