MTWB QJ205 bearing is engineered for electric vehicle steering systems where high rigidity, low friction and precise rotational control are required. The four-point contact ball bearing design provides excellent axial load capability in both directions, making it suitable for modern EV steering columns, steering gears and electric power steering (EPS) applications.
Designation：QJ205 Bearing
OEM： Geely，Fiat，Daimler（ZF）
Application： Worm Shaft
• High-purity bearing steel is selected.
• Special groove and dust-proof groove processing technology.
• The sealing ring structure is designed as a three-lip structure, with 100% air-tightness testing.
• The sealing performance and bearing capacity of the bearing is improved.
• Compared with ordinary four-point contact bearings, the axial force and radial force are increased by 30%.
| Parameter | Specification |
|---|---|
| Bearing Type | Four Point Contact Ball Bearing |
| Bearing Number | QJ205 |
| Application | EV Steering System |
| Bearing Structure | Split Inner Ring Four Point Contact Design |
| Bore Diameter (d) | 25 mm |
| Outer Diameter (D) | 52 mm |
| Width (B) | 15 mm |
| Weight | Approx. 0.16 kg |
| Contact Angle | 35° |
| Dynamic Load Rating (Cr) | 26 kN |
| Static Load Rating (C0r) | 18.8 kN |
| Limiting Speed (Grease) | Approx. 10,000 rpm |
| Precision Grade | P6 / P5 Available |
| Clearance | C0 / C3 Customized |
| Lubrication | Automotive Low Noise Grease |
| Seal Option | Open / Customized Seal Design |
For EV manufacturers and Tier 1 steering system suppliers such as Geely, Fiat and Daimler(ZF), MTWB provides customized QJ205 bearing solutions based on automotive-grade requirements.
Capability includes:
✓ Customized bearing dimensions
✓ Special grease development
✓ Low noise inspection
✓ Lifetime traceability
✓ Batch consistency control
✓ PPAP support
✓ OEM engineering collaboration
MTWB QJ205 bearing provides a cost-effective alternative solution for automotive steering applications where customers require reliable performance comparable to international bearing brands while optimizing supply chain cost.
QJ205 bearing is mainly used in automotive steering systems, especially EV steering columns and electric power steering applications requiring high rigidity and axial load capability.
Four-point contact ball bearings can support axial loads in both directions while maintaining compact dimensions and high stiffness.
Yes. MTWB can customize clearance, grease, tolerance grade and packaging according to OEM and Tier 1 supplier requirements.
MTWB QJ205 bearings can be developed as an equivalent solution based on OEM drawings and performance requirements.
Looking for a reliable EV bearing supplier for Steering System ? MTWB provides customized bearing solutions for electric vehicles, including OEM replacement bearings, special grease bearings and high-speed drivetrain bearings.
Contact MTWB today to discuss your related EV Bearing for steering system requirements and receive a professional bearing solution.
MTWB (Mighty Way Industrial Limited) is a professional customized EV bearings manufacturer for steering system and OEM bearing supplier specializing in high precision miniature bearings and application-specific bearing solutions.
With advanced manufacturing capabilities, comprehensive testing systems, and engineering expertise, MTWB helps global customers develop reliable bearing solutions for demanding applications.
