53309+U309 Thrust Ball Bearing
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Request Quote| Part Number | 53309+U309 |
| Category | Thrust Ball Bearing With W Self Aligning |
| Brand | JMP® |
| Interchangeable With | INA, NTN, HRB |
| Bore Diameter | 45.0000 mm |
| Outer Diameter | 85.0000 mm |
| Width | 30.1000 mm |
| Bore Tolerance | -0.012mm to 0 |
| Outer Tolerance | -0.02mm to 0 |
| Width Tolerance | +0.02mm to -0.25mm |
| Chamfer Dimension | 1.10 mm |
| Dynamic Thrust Load | 17108.00 |
| Static Thrust Load | 31473.00 |
| Seal Type | Open |
| Bearing Type | Ball |
| Load Direction | Thrust |
| Ring Material | Chrome Steel |
| Ball / Roller Material | Chrome Steel |
| Cage Material | Chrome Steel |
| Reference Speed | 2,000 rpm |
| Limiting Speed (Grease) | — |
| Limiting Speed (Oil) | — |
| Bore Tolerance | -0.012mm to 0 |
| Outer Ring Tolerance | -0.02mm to 0 |
| Width Tolerance | +0.02mm to -0.25mm |
| Weight | 0.8500 g |
Drawing not available — Request specs
| Brand | Equivalent |
|---|---|
| INA | 53309+U309 |
| NTN | 53309+U309 |
| HRB | 53309+U309 |
The 53309+U309 is a high-quality Thrust Ball Bearing with bore diameter of 45.0000 mm, outer diameter of 85.0000 mm, and width of 30.1000 mm.
With a dynamic radial load rating of 17,108 lbf and static load rating of 31,473 lbf, the 53309+U309 is engineered to handle demanding operating conditions.
- High load-carrying capacity (17,108 lbf dynamic) for extended service life
- Optimized operating speed for stable performance
- Open design for easy relubrication and low friction operation
- Precision manufacturing to ISO standards ensures consistent quality
- Fully interchangeable with major international brands (SKF, NSK, FAG, NTN)
The 53309+U309 is available in Open (no seal), ZZ (metal shield), and 2RS (rubber seal) configurations. Open bearings offer higher speed ratings and lower friction, while sealed versions provide better contamination protection and reduced maintenance requirements.
JMP Bearings manufactures the 53309+U309 in various tolerance classes including ABEC-1 (standard), ABEC-3, ABEC-5 (precision), and ABEC-7 (high precision). Please contact us for specific tolerance class availability and pricing.
The 53309+U309 typically uses lithium-based grease (e.g., ISO VG 68) for general applications. For high-temperature or high-speed applications, synthetic greases such as polyurea-based lubricants are recommended. Contact our engineering team for application-specific lubrication guidance.
JMP Bearings offers flexible ordering - sample quantities are available from 1 piece. For bulk orders, we provide tiered pricing starting at 100, 500, and 1000+ pieces. Contact us for a custom quote tailored to your volume.
For standard 53309+U309 applications, shaft tolerance is typically k5 or j6, and housing tolerance is typically H7 or J6. Exact tolerance selections depend on load conditions, speed, and operating temperature. Refer to ISO 286 or consult our engineering support for detailed recommendations.
