HM212047/10 Wheel Bearing
The DUHUI Bearing HM212047/10 is a single-row tapered roller bearing cone with a 63.50 mm inner diameter. This automotive wheel bearing is designed for combined radial and axial loads in heavy-duty applications and is commonly used as a front or rear inner wheel bearing on commercial vehicles, trailers, and industrial equipment. The matching cup for this cone is HM212010. It serves as a direct replacement for workshops, distributors, and B2B buyers requiring a reliable bearing solution.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | DWB2550 |
| Part Number | HM212047/10 |
| Product Type | Single Row Tapered Roller Bearing – Cone |
| Inner Diameter (d) | 63.50 mm (2.500 inch) |
| Outer Diameter (D) | 122.24 mm (4.813 inch) |
| Cone Width (B) | 38.35 mm (1.510 inch) |
| Cup Width (C) | 29.72 mm (1.170 inch) |
| Weight | 1.36 kg |
| Matching Cup | HM212010 |
| Bearing Material | 52100 Alloy Steel |
| Cage Material | Pressed Steel Cage |
| Dynamic Load Rating | 238 kN |
| Static Load Rating | 249 kN |
| Temperature Range | -40°C to 121°C |
Note: Dimensional data is based on manufacturer published specifications from Timken, NTN, and Koyo 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: DWB2550
OE Numbers:
HM212047/10
Reference Numbers (Interchange):
Timken: HM212047, HM212047/HM212010
NTN: HM212047, 4T-HM212047
Koyo: HM212047
Vehicle Fitment
GMC P-SERIES: 1979-1989 – Front Driver or Passenger Side Inner Wheel Bearing
Please verify OE number, dimensions and vehicle configuration before ordering.
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 52100 high-carbon chromium steel for durability and fatigue resistance.
- Pressed steel cage provides reliable roller guidance under load.
- Heavy-duty construction is designed for high-load applications, including commercial vehicles, trailers, and industrial equipment.
- Available for product customization – logo, code, pattern, or words can be applied to the bearing or packaging.
Installation Notes
- Confirm inner diameter (63.50 mm) matches your shaft before installation.
- This bearing cone must be used with the matching cup HM212010. Always replace cone and cup at the same time, preferably from the same manufacturer, 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 to accommodate axial loads in both directions.
- 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. A slight preload can maximize bearing performance and service life, but excessive preload will reduce bearing life.
- 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
