31318 Wheel Bearing For MERCEDES-BENZ
The DUHUI Bearing 31318 wheel bearing is a metric-series single-row tapered roller bearing designed for Mercedes-Benz heavy-duty commercial vehicle applications. With a 90 mm bore, 190 mm outer diameter, and 46.5 mm total width, this bearing supports combined radial and axial loads in wheel hub, axle, and transmission positions. It matches Mercedes-Benz OE specification 31318 and is interchangeable with SKF 31318, FAG 31318, and Timken 31318 equivalents.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | DWB2460 |
| Part Number | 31318 |
| Product Type | Tapered Roller Bearing – Single Row, Metric Series |
| Bore Diameter (d) | 90.00 mm (3.543 inch) |
| Outer Diameter (D) | 190.00 mm (7.480 inch) |
| Total Width (T) | 46.50 mm (1.831 inch) |
| Material | High Carbon Chrome Steel (GCr15) |
| Weight | 5.51 kg (12.15 lb) |
Note: Dimensional data is based on SKF and Timken published specifications for the 31318 series. 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: DWB2460
OE Numbers:
31318
Reference Numbers (Interchange):
SKF: 31318
FAG: 31318
Timken: 31318
NTN: 4T-31318
NSK: HR31318J
Vehicle Fitment
MERCEDES-BENZ: Various commercial vehicle and heavy-duty truck models (verify OE number and dimensions before ordering)
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Single-row tapered roller design supports combined radial and axial loads in one direction – suitable for heavy-duty commercial vehicle wheel hub, axle, and transmission applications.
- Metric-series configuration with 90 mm bore and 190 mm outer diameter matches SKF 31318, FAG 31318, and Timken 31318 equivalents for direct replacement.
- Separable cup and cone construction simplifies installation and maintenance – inner ring with roller assembly can be mounted independently.
- Heat-treated bearing steel with precision-ground raceways – designed to handle the high loads and torque demands of heavy-duty commercial vehicle drivetrains.
- Open-type configuration supports splash lubrication and oil bath systems common in heavy-duty axle and hub applications.
- Cross-referenced with Mercedes-Benz OE 31318 and major aftermarket brands – confirmed interchange available.
Installation Notes
- Confirm bore diameter (90.00 mm) and outer diameter (190.00 mm) match your existing bearing and housing before installation.
- Inspect the shaft and housing for wear or damage – replace if scoring or pitting is present.
- Set bearing preload according to Mercedes-Benz manufacturer specifications – tapered rollers require proper adjustment for axle and wheel hub operation.
- Lubricate with high-quality gear oil or grease – refer to the Mercedes-Benz service manual for viscosity grade and lubrication method.
- When paired with a second tapered roller bearing, mount in mirror-image arrangement to accommodate axial loads in both directions.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces tapered roller bearings and automotive components to OE specifications. Contact us
