389A/382 Wheel Bearing
The DUHUI Bearing 389A/382 is a single-row tapered roller bearing cone and cup assembly with a 53.98 mm inner diameter and 98.43 mm outer diameter. This automotive wheel bearing is designed for combined radial and axial loads and is commonly used in wheel hubs, gearboxes, and industrial machinery applications. It matches OE specification 389A/382 and serves as a direct replacement for workshops, distributors, and B2B buyers requiring a reliable bearing solution.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | DWB2549 |
| Part Number | 389A/382 |
| Product Type | Single Row Tapered Roller Bearing – Cone & Cup Assembly |
| Inner Diameter (d) | 53.98 mm (2.125 inch) |
| Outer Diameter (D) | 98.43 mm (3.875 inch) |
| Cone Width (B) | 21.95 mm (0.864 inch) |
| Cup Width (C) | 17.83 mm (0.702 inch) |
| Total Width (T) | 21.00 mm (0.827 inch) |
| Weight | 0.69 kg (1.52 lb) |
| Bearing Material | Chrome Steel |
| Cage Material | Steel Cage |
| Series | 385 |
| Design | Open Type |
| Dynamic Radial Load (C1) | 84.2 kN |
| Static Radial Load (C0) | 107.0 kN |
| Dynamic Radial Rating (C90) | 21.8 kN |
| Dynamic Thrust Rating (Ca90) | 13.2 kN |
| Limiting Speed (Grease) | 3,600 rpm |
| Limiting Speed (Oil) | 5,000 rpm |
| ISO Factor (e) | 0.35 |
| Axial Factor (Y) | 1.69 |
| Temperature Range | -30°C to 110°C |
Note: Dimensional data is based on manufacturer published specifications from NACHI, TIMKEN, and TFL catalogs. The cone is 389A and the cup is 382. 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: DWB2549
OE Numbers:
389A/382
Reference Numbers (Interchange):
NACHI: 389A/382
TIMKEN: 389A/382
TFL: 389A-382
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. The conical raceways allow these versatile bearings to support combined loads effectively.
- Separable cone and cup components simplify mounting, dismounting, and maintenance. The cone unit consists of an inner ring with cage and roller set, while the cup is the outer ring.
- Manufactured to OE specifications with chrome steel rings and rollers for durability and fatigue resistance.
- Steel cage provides reliable roller guidance under load and reduces friction for extended operational life.
- Open design allows for easy lubrication and maintenance.
- Available for product customization – logo, code, pattern, or words can be applied to the bearing or packaging.
Installation Notes
- Confirm inner diameter (53.98 mm) and outer diameter (98.43 mm) match your housing and shaft before installation.
- This bearing cone (389A) must be used with the matching cup (382). Always replace cone and cup at the same time to prevent fitment issues caused by different internal profiles and tolerances.
- Single-row tapered roller bearings must be mounted in mirror-image arrangement together with a second tapered roller bearing. Paired bearing sets can be applied in X, O, or tandem arrangements.
- 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
