Automotive Bearing Manufacturer
Since 2011, OTT has supplied precision bearings to 40+ vehicle brands across 50+ countries. Our patented Carbonitriding (C-A) heat treatment delivers 5–10× longer lifespan — proven in 1,004-hour endurance testing.
Complete Automotive Bearing Solutions
10 product lines covering every automotive bearing application. Cross-referenced to SKF, FAG, KOYO, NTN, NSK.
Wheel Hub Bearings
Pre-sealed, pre-lubricated hub assemblies for passenger cars and light trucks.
200+ SKUsTapered Roller Bearings
High-load capacity tapered rollers for automotive and industrial applications.
100+ SKUsTensioner & Idler Pulley Bearings
OEM-grade tensioner & idler pulley bearings — supplying assembly plants and aftermarket worldwide.
80+ SKUsAlternator & Starter Bearings
High-speed, low-noise bearings for automotive alternators and starter motors.
60+ SKUsDeep Groove Ball Bearings
Versatile bearings for radial, axial, and combined loads across all industries.
50+ SKUsA/C Compressor Bearings
Specialized bearings for automotive air conditioning compressor clutches.
20+ SKUsTransmission Bearings
Precision bearings for manual and automatic automotive transmissions.
15+ SKUsDouble Row Angular Contact Bearings
High-rigidity bearings for combined radial and axial loads in compact spaces.
30+ SKUsAgricultural Machinery Bearings
Rugged, sealed bearings for tractors, harvesters, and farming equipment.
30+ SKUsCustom & Non-Standard Bearings
Engineered-to-order bearings for unique dimensions, materials, and applications.
Unlimited SKUsApplication Areas
Passenger Cars
Hub bearings, alternator bearings, tensioners, and A/C compressor bearings for all major car brands.
Trucks & Commercial
Heavy-duty tapered roller bearings and hub assemblies for trucks, trailers, and commercial fleets.
Agricultural Machinery
Ruggedized bearings for tractors, harvesters, and farming equipment with enhanced sealing.
Industrial Motors
Deep groove ball bearings and custom bearings for electric motors, pumps, and industrial equipment.
Why Choose OTT Bearing?
Carbonitriding (C-A) Technology
Our patented heat treatment improves bearing life by 5–10×. Proven in 1,004-hour endurance testing.
24 Automated Production Lines
20,000+ m² facility with CNC grinding and automated assembly. 20 million sets annual capacity.
IATF 16949 Quality System
Automotive industry gold standard. 100% incoming material inspection and final vibration testing.
40+ OEM Brands Covered
Cross-referenced to Ford, GM, Toyota, VW, BMW, Mercedes-Benz, Hyundai, KIA, and more.
143 Patents
Continuous R&D in bearing materials, sealing, heat treatment, and precision manufacturing.
Global OEM Partners
Trusted by HSC, GPC, Mando, GMB, RegalRexnord, HITACHI, and leading automotive companies.
How to Order
Submit Requirements
Send bearing model numbers, quantities, and specifications.
Engineering Review
Detailed quotation within 12 hours.
12 hoursSample & Approval
Free samples shipped to your door for testing.
3–7 daysProduction & Delivery
Mass production with full QC. FOB Ningbo/Shanghai.
15–30 daysWorld-Class Manufacturing Facility
Located in Jiashan, Zhejiang, our 20,000+ m² facility houses 24 fully automated production lines with international-standard inspection equipment — from CNC grinding to automated assembly.
Trusted by Leading OEM Partners Worldwide
Ready to Source Quality Bearings?
Factory-direct pricing on automotive bearings. Free samples — reply within 12 hours.