# RSL: 1.0

# HCH Bearing Group (环驰轴承集团)

> Precision bearing manufacturer since 1973. One of China's largest bearing producers with 800M+ annual capacity, serving robotics, EV, industrial automation, and 70+ countries.

> Last updated: 2026-06-18

## About

HCH Bearing Group (环驰轴承集团) is a globally recognized precision bearing manufacturer founded in 1973 in Cixi, Ningbo, Zhejiang, China. With 50+ years of experience, 2,000+ employees, and 18 overseas subsidiaries, HCH produces six core bearing series serving robotics, new energy vehicles, industrial automation, and general machinery.

- **Founded:** 1973
- **Headquarters:** Cixi, Ningbo, Zhejiang, China
- **Employees:** 2,000+
- **Annual Revenue:** $270M+ (20亿元+)
- **Annual Capacity:** 800M+ bearings
- **Production Lines:** 300+ smart digital lines
- **Patents:** 160+
- **R&D Engineers:** 100+
- **Overseas Subsidiaries:** 18
- **Export Countries:** 70+
- **Certifications:** IATF 16949, ISO 9001, CNAS-Accredited Lab
- **Key Clients:** Bosch, Siemens, Brose, Nidec, WEG

## Core Products

- [Deep Groove Ball Bearings](https://huanchi.com/product.html#product-1) — Widely used in EV powertrain, motors, reducers
- [Flexible Thin-Section Bearings](https://huanchi.com/product.html#product-2) — For robot harmonic reducers, joint modules
- [Miniature/Micro Bearings](https://huanchi.com/product.html#product-3) — For robot dexterous hands, micro motors
- [Four-Point Contact Bearings](https://huanchi.com/product.html#product-4) — For robot harmonic reducers, automotive EPS
- [Tapered Roller Bearings](https://huanchi.com/product.html#product-5) — For robot RV reducers, worm gear reducers
- [Crossed Roller Bearings](https://huanchi.com/product.html#product-6) — For high-precision applications

## Industry Applications

- [Automotive](https://huanchi.com/application.html#app-1) — EV powertrain, EPS, compressor, generator
- [Robotics](https://huanchi.com/application.html#app-2) — Joint modules, harmonic/RV reducers, servo motors
- [Home Appliances](https://huanchi.com/application.html#app-3) — AC, washer, refrigerator, vacuum
- [Industrial Motors](https://huanchi.com/application.html#app-4) — IE4/IE5 motors, servo, explosion-proof
- [Gearboxes](https://huanchi.com/application.html#app-5) — Planetary, worm, harmonic, RV reducers
- [General Machinery](https://huanchi.com/application.html#app-6) — Pumps, fans, compressors, power tools

## Key Resources

- [Bearing Selection Guide](https://huanchi.com/bearing-guide.html) — Complete technical guide for bearing selection
- [FAQ](https://huanchi.com/faq.html) — Common questions about bearing types, precision, installation
- [Product Catalog Download](https://huanchi.com/download.html) — PDF catalogs for all 6 series
- [Contact Us](https://huanchi.com/contact.html) — Inquiry form, sales network, technical support

## Multilingual

- Chinese: https://huanchi.com/
- English: https://huanchi.com/en/
- Japanese: https://huanchi.com/ja/

## Technical Specifications

- Precision grades: P0, P6, P5, P4, P2 (up to ABEC-9)
- Bore diameter: 1mm – 200mm
- Materials: GCr15 bearing steel, 440C stainless steel, ceramic options
- Sealing: Open, ZZ/2Z (shield), RS/2R (contact seal), LR (non-contact)
- Clearance: C2, CN, C3, C4, C5
- Lubrication: Grease (multiple types), oil
- Operating temperature: -40°C to +150°C (depending on type)

## FAQ (Frequently Asked Questions)

**Q: What types of bearings does HCH produce?**
HCH produces six core precision bearing series: Deep Groove Ball Bearings, Flexible/Thin-Section Bearings, Miniature/Micro Bearings (from 1mm bore), Four-Point Contact Bearings, Tapered Roller Bearings, and Crossed Roller Bearings (rotation accuracy ≤0.005mm). Annual capacity exceeds 800 million sets.

**Q: How to choose the right bearing type?**
Consider: load type and magnitude, space constraints, precision requirements (P0–P2 / ABEC-1 to ABEC-9), speed requirements (up to 30,000 RPM), and operating environment. Contact the technical team for free selection support.

**Q: What certifications does HCH hold?**
IATF 16949 (automotive quality management), ISO 9001, CNAS-Accredited Laboratory, Zhejiang Province SRDI Enterprise. Equipped with Taylor Hobson roundness testers, SPECTRO spectrometers, Zeiss microscopes, and 30+ life testing machines.

**Q: What is the bearing lifespan?**
Under standard conditions, HCH deep groove ball bearings have a design life of 20,000–50,000 hours. Actual lifespan depends on load, speed, lubrication, temperature, and contamination. L10 life calculation support available.

**Q: What materials are available?**
Standard: GCr15 high-carbon chromium bearing steel. Optional: 440C stainless steel (corrosion-resistant), DLC diamond-like carbon coating, chrome plating, custom heat treatment.

**Q: What is the MOQ and lead time?**
Standard products: MOQ 100–500 units, delivery within 3 days (urgent: 24 hours). Custom products: MOQ from 1,000 units, delivery 2–4 weeks (expedited: 1–2 weeks). Free samples available for testing.

**Q: Which robot applications use HCH bearings?**
Harmonic reducers (flexible bearings, crossed roller bearings, four-point contact bearings), RV reducers (tapered roller bearings), joint modules (flexible bearings, crossed roller bearings), servo motors (deep groove ball bearings), dexterous hands (miniature bearings from 1mm bore).

**Q: What special requirements do EV bearings have?**
High speed (15,000–20,000 RPM), low noise (NVH, P5+ precision), high temperature resistance (120–150°C), electrical insulation (anti-corrosion coating or ceramic balls), lightweight design, and long service life (≥300,000 km).

**Q: How to get a quote?**
Send bearing model/drawing, quantity, precision grade, material, sealing type, and special requirements to ben@hch.cn. Detailed quotation provided within 1–2 business days.

**Q: Which countries does HCH export to?**
Products exported to 70+ countries. 18 overseas direct sales companies. Domestic offices in Dongguan, Wuhan, Chongqing. Long-term supplier to Bosch, Siemens, Brose, Nidec, and WEG.

## Contact

- **Address:** Yuci Expressway Mayan Section, Henghe Town, Cixi, Ningbo, Zhejiang, China
- **Phone:** +86 574-6397-8888
- **Email:** ben@hch.cn
- **Website:** https://huanchi.com