15578/20 Wheel Bearing
The DUHUI Bearing 15578/20 is a single-row tapered roller bearing with a 25.40 mm inner diameter and 57.15 mm outer diameter. This automotive wheel bearing is designed for combined radial and axial loads, commonly used in wheel hubs, transmissions, and differentials. It matches OE specification 15578/20 and serves as a direct replacement for workshops, distributors, and B2B buyers requiring a reliable bearing solution.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | DWB2498 |
| Part Number | 15578/20 |
| Product Type | Single Row Tapered Roller Bearing |
| Inner Diameter (d) | 25.40 mm (1.000 inch) |
| Outer Diameter (D) | 57.15 mm (2.250 inch) |
| Cone Width (B) | 17.46 mm (0.687 inch) |
| Cup Width (C) | 13.50 mm (0.531 inch) |
| Total Width (T) | 17.46 mm (0.687 inch) |
| Weight | 0.22 kg |
| Bearing Material | Steel |
| Cage Material | Pressed Steel |
| Dynamic Load Rating | 40.2 kN |
| Static Load Rating | 45.5 kN |
Note: Dimensional data is based on manufacturer published specifications from SKF, Timken, and NTN catalogs. Please verify measurements against your original bearing before ordering.
Important: All information on this page is for reference only. Please verify OE numbers, dimensions, and vehicle fitment against your original part before ordering. Contact us for fitment confirmation.
DH Code & OE Numbers & Reference Numbers
DH Code: DWB2498
OE Numbers:
15578/20
Reference Numbers (Interchange):
SKF: 15578/15520
Timken: 15578/15520, SET 84
NTN: 4T-15578/15520
M89348/2/510/2/QVQ506, 1982F/1924A/QVQ519, 1985/1922/Q
Vehicle Fitment
Please verify OE number, dimensions and vehicle configuration before ordering. Fitment data is not available for this part number.
Product Features
- Single-row tapered roller bearing design accommodates high radial and axial loads in one direction.
- Separable cone and cup components simplify mounting, dismounting, and maintenance.
- Manufactured to OE specifications with steel rings and pressed steel cage for durability.
- Direct interchange with OE number 15578/20 and multiple major brand equivalents including Timken 15578/15520 and SKF 15578/15520.
- Precision-ground raceways and heat-treated components ensure consistent performance and extended service life.
- Available for product customization – logo, code, pattern, or words can be applied to the bearing or packaging.
Installation Notes
- Confirm inner diameter (25.40 mm) and outer diameter (57.15 mm) match your housing and shaft before installation.
- This is a single-row tapered roller bearing – verify your application requires this configuration and check the required preload specifications.
- Inspect the housing and shaft surfaces for wear or damage before installing new components.
- Apply even pressure when pressing the cone onto the shaft and the cup into the housing – never apply force directly through the rolling elements.
- Proper bearing preload is critical for tapered roller bearings – refer to the vehicle service manual for torque specifications.
- Pack the bearing with high-quality grease before installation if not pre-lubricated.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces wheel bearings and automotive components to OE specifications. Contact us
