Case Studies

HCH Deep Groove Ball Bearings in Bosch Power Tools

HCH supplies precision deep groove ball bearings for Bosch power tools global supply chain, meeting stringent quality requirements for low noise, high speed, and extended service life. With IATF 16949 certified production lines and fully integrated in-house manufacturing, HCH ensures consistent quality and on-time delivery for Bosch manufacturing facilities worldwide.

Flexible Bearings for Siemens Servo Motors

HCH thin-section flexible bearings enable compact, high-precision servo motor designs for Siemens industrial automation systems. The unique thin-wall geometry reduces weight and space while maintaining exceptional rotational accuracy, making these bearings ideal for Siemens' advanced motion control solutions in robotics and CNC machinery.

Crossed Roller Bearings for Brose Automotive Actuators

HCH crossed roller bearings provide high rigidity and precision for Brose automotive actuator applications. With their crossed cylindrical roller arrangement, these bearings deliver superior moment stiffness and compact design -- critical for Brose's electric window regulators, seat adjustment mechanisms, and thermal management actuators in modern vehicles.

Miniature Bearings for Nidec Micro Motors

HCH miniature bearings (1mm ID) power Nidec micro motors in consumer electronics and medical devices. Manufactured to ABEC-5 and ABEC-7 precision grades with ultra-low torque and noise characteristics, these bearings enable Nidec's compact motor solutions in hard disk drives, surgical tools, and portable electronics.

Tapered Roller Bearings for WEG Industrial Gearboxes

HCH tapered roller bearings deliver high load capacity and long service life for WEG industrial gearbox applications. The optimized roller profile and raceway geometry minimize stress concentrations, ensuring reliable performance under heavy radial and axial combined loads in demanding industrial environments such as mining, steel, and heavy machinery.

Precision Bearings for Robot Harmonic Reducers

Background: A leading collaborative- and humanoid-robot manufacturer required high-precision bearings for its harmonic drive reducers. As a representative case, HCH Bearing leveraged 50+ years of precision manufacturing expertise and a 160+ patent portfolio to support the customer's mass-production ramp of next-generation robots.

Challenge: Harmonic reducers place extreme demands on flexible thin-section bearings -- constant cyclic deformation requires exceptionally long fatigue life and tight lot-to-lot consistency. Any variation in cross-section, raceway finish, or retained torque directly degrades reducer positioning accuracy and service life.

Solution: HCH supplied its full F5-F40 flexible thin-section bearing series, produced on third-generation intelligent production lines with 100% in-line inspection. Crossed roller bearings with rotational accuracy of <=0.005 mm were paired to support the reducer output stage, providing high moment stiffness within a compact envelope.

Result: The matched bearing set significantly improved reducer accuracy retention and extended maintenance intervals, enabling the customer to scale collaborative and humanoid robot production volumes while meeting repeatable precision targets.

Related products: Flexible Thin Bearings  |  Crossed Roller Bearings

Deep Groove Ball Bearings for New Energy Vehicle Drive Motors

Background: A new energy vehicle (NEV) e-drive platform supplier needed a qualified bearing source capable of meeting automotive-grade reliability for high-volume drive motor production. This representative case illustrates HCH's automotive bearing capability built on IATF 16949:2025 certified processes and a CNAS-accredited laboratory.

Challenge: NEV drive motors run at continuously high speeds with strict limits on noise, vibration and harshness (NVH), and must deliver long service life under vehicle-grade thermal and dynamic loads. Consistency across millions of units is a hard requirement for automotive qualification.

Solution: HCH engineered low-noise deep groove ball bearings rated to 30,000 RPM, optimizing cage geometry, raceway surface finish and ball grade. Full inspection was performed in the CNAS-recognized laboratory, and production runs under IATF 16949:2025 with 300+ intelligent production lines ensuring traceable, repeatable quality at an annual capacity of 800 million sets.

Result: The bearings met automotive-grade reliability targets with a design life of 20,000-50,000 hours, supporting the customer's e-drive platform through volume production and helping reduce warranty risk across the vehicle program.

Related products: Deep Groove Ball Bearings  |  EV Bearings

Combined Bearing Solution for Industrial Servo Motors & Gearboxes

Background: An industrial automation equipment OEM sought a single-source bearing partner for its servo motor and matched precision gearbox assemblies. As a representative case, HCH provided a combined solution leveraging its broad product range -- deep groove ball, tapered roller, and four-point contact bearings -- for the customer's factory automation line.

Challenge: Servo motors demand high-speed precision and low torque ripple, while the paired gearbox must carry high combined radial and axial loads with high torsional rigidity. Sourcing mismatched bearings from multiple vendors had caused inconsistent transmission accuracy and elevated noise.

Solution: HCH supplied deep groove ball bearings for the servo motor shafts alongside tapered roller and four-point contact bearings for the gearbox output and locating supports. The matched combination was validated through joint application engineering, with raceway and clearance specifications tuned to the customer's load spectrum.

Result: The integrated solution reduced running noise and energy consumption while improving transmission accuracy and stability, helping the customer raise the positioning precision and reliability of its automation equipment.

Related products: Deep Groove Ball Bearings  |  Tapered Roller Bearings  |  Industrial Automation Bearings