49SAX/492A Wheel Bearing For MERITOR

The DUHUI Bearing 492A tapered roller bearing cup is an OE-replacement component for Meritor heavy-duty commercial vehicle axle applications. This single-row tapered roller bearing cup (outer ring) is designed to pair with the 49SAX cone (inner ring) to form a complete wheel bearing assembly. Manufactured to match original equipment specifications including Meritor 492A, this bearing cup delivers reliable performance for compatible heavy-duty trucks and trailers.
Technical Specifications
| Specification | mm | inch |
|---|---|---|
| DH Code | DWB2601 | |
| Part Number | 492A | |
| Product Type | Single Row Tapered Roller Bearing Cup | |
| Cup Outside Diameter (D) | 133.00 mm | 5.236 in |
| Cup Width (C) | 22.23 mm | 0.875 in |
| Weight | 0.43 kg | |
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: DWB2601
OE Numbers:
492A
Reference Numbers (Interchange):
MERITOR: 492A
Fersa: CUP 492 A
Vehicle Fitment
Application Type: This 492A bearing cup is a heavy-duty component used in Meritor axle assemblies for commercial vehicles and trailers.
Typical applications include: Heavy-duty trucks, semi-trailers, buses, and commercial vehicle wheel-end assemblies requiring a tapered roller bearing cup with Meritor specification.
Please verify OE number, dimensions and application requirements before ordering.
Product Features
- Single-row tapered roller bearing cup provides excellent radial and thrust load capacity for heavy-duty axle applications.
- Precision-ground raceway ensures smooth roller contact and consistent bearing performance.
- Heat-treated bearing steel construction resists shock loads and fatigue in demanding commercial vehicle operations.
- Designed to pair with the 49SAX cone for a complete wheel bearing assembly.
Installation Notes
- Confirm cup outside diameter is 133.00 mm (5.236 in) and cup width is 22.23 mm (0.875 in) before installation.
- This is a cup component only – ensure the corresponding 49SAX cone is also replaced for a complete bearing replacement.
- Inspect the housing bore surface for damage or wear before installing the new cup.
- Press the cup into the housing using appropriate tools – ensure it is fully seated against the housing shoulder.
- Refer to the Meritor service manual for specific torque values and installation procedures.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive and industrial bearing supplier established in Zhejiang, China, in 2003. DUHUI produces tapered roller bearings and automotive components to OE specifications. Contact us

