UC203 Insert Spherical Bearing
The DUHUI Bearing UC203 insert spherical bearing is a set screw locking unit designed for industrial applications requiring self-aligning support and easy mounting. This bearing matches OE specifications and is dimensionally interchangeable with SKF UC203, NTN UC203D1, and NSK UC203 for simplified replacement in agricultural machinery, conveyor systems, and processing equipment.
Technical Specifications
| Specification | mm | inch |
|---|---|---|
| DH Code | ||
| Part Number | UC203 | |
| Shaft Diameter (d) | 17.00 mm | 0.669 in |
| Outside Diameter (D) | 40.00 mm | 1.575 in |
| Overall Width (B) | 27.40 mm | 1.079 in |
| Outer Ring Width (C) | 14.00 mm | 0.551 in |
| Dimension S | 11.50 mm | 0.453 in |
| Dimension S1 | 15.90 mm | 0.626 in |
| Set Screw Size | M5x0.8 | |
| Dynamic Load Rating (Cr) | 9,500 N | |
| Static Load Rating (Cor) | 4,800 N | |
| Weight | 0.11 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:
OE Numbers:
UC203
Reference Numbers (Interchange):
SKF: UC203
NTN: UC203D1
NSK: UC203
FAG: UC203
KOYO: UC203
Vehicle Fitment
Application Type: This UC203 insert spherical bearing is an industrial component used in machinery rather than specific vehicle models.
Typical applications include: Agricultural equipment, conveyor systems, mining machinery, textile machinery, food processing equipment, and material handling systems.
Please verify OE number, dimensions and application requirements before ordering.
Product Features
- Spherical outer ring design accommodates misalignment and provides self-aligning capability for extended bearing life.
- Set screw locking mechanism secures the bearing to the shaft for reliable operation under varying loads.
- Double-lip seal design effectively retains lubrication and keeps contaminants out.
- Dimensionally interchangeable with UC203 bearings from SKF, NTN, NSK, FAG, and KOYO.
- Compact 17 mm shaft bore with 40 mm outside diameter fits standard housing units.
- Reliable performance in both industrial and agricultural applications.
Installation Notes
- Confirm shaft diameter is exactly 17.00 mm (0.669 in) before installation.
- Tighten the M5x0.8 set screws evenly and securely to prevent bearing movement on the shaft.
- Verify housing bore matches the 40 mm outside diameter of the bearing.
- Ensure the spherical outer surface seats correctly in the housing to allow full self-alignment function.
- Apply appropriate grease before operation and maintain regular lubrication intervals.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive and industrial bearing supplier established in Zhejiang, China, in 2003. DUHUI produces insert spherical bearings to OE specifications. Contact us
