Precision Bearing Full Range Products
Six core bearing series meeting the demands of robotics, automotive, and industrial automation applications
Deep Groove Ball Bearings
HCH deep groove ball bearings are the most representative rolling bearings, featuring simple structure and ease of use. They primarily handle radial loads and can also accommodate certain axial loads. Manufactured from premium bearing steel (GCr15), they are widely used in electric motors, automobiles, home appliances, precision instruments, and general machinery.
- ✓ Precision: P0/P6/P5
- ✓ Max speed 30,000 RPM
- ✓ Seals: ZZ/2RS available
- ✓ ISO 9001/IATF 16949 certified
Flexible / Thin-Section Bearings
HCH flexible bearings (thin-section bearings) feature ultra-thin cross-sections, lightweight design, and high rigidity, delivering precision rotary support in compact spaces. With a constant cross-section design, they are ideal for robot joints, aerospace gyroscopes, medical devices, and precision rotary tables where space and weight are critical.
- ✓ Thin-section profile design
- ✓ Precision: P5/P4
- ✓ Material: Bearing steel / Stainless steel
- ✓ Lightweight: 30%-50% weight reduction
Miniature / Micro Bearings
HCH miniature and micro bearings are specifically designed for precision transmission in extremely small spaces, with inner diameters as small as 1mm. They offer low friction, low noise, and high precision, and are widely used in micro motors, phone vibration motors, dental handpieces, drones, and precision instrumentation.
- ✓ Inner diameter: 1mm - 10mm
- ✓ Precision: ABEC-5/7
- ✓ Ultra-low noise operation
- ✓ Stainless steel / High-carbon chrome steel
Four-Point Contact Bearings
HCH four-point contact ball bearings feature separable inner and outer rings, capable of handling radial loads and bidirectional axial loads simultaneously. A single bearing can replace face-to-face or back-to-back angular contact ball bearing pairs, widely used in gearboxes, worm gear reducers, and precision rotary tables.
- ✓ Contact angle: 35° standard
- ✓ Bidirectional axial load capacity
- ✓ Precision: P5/P4
- ✓ Space-saving installation
Tapered Roller Bearings
HCH tapered roller bearings feature a tapered raceway and roller design, offering exceptional combined radial and axial load capacity. They are widely used in robot RV reducers, construction machinery, mining equipment, and heavy-duty drive systems under high-load conditions.
- ✓ High radial + axial combined load
- ✓ Suitable for heavy-duty applications
- ✓ Compliant with ISO 355
Crossed Roller Bearings
HCH crossed roller bearings feature an orthogonal cylindrical roller arrangement, with a single bearing capable of handling radial, axial, and tilting moment loads simultaneously, offering exceptional rigidity and rotational accuracy. Widely used in robot harmonic reducers, robot joints, CNC rotary tables, medical imaging equipment, and precision measuring instruments.
- ✓ Multi-directional combined load capacity
- ✓ Rotational accuracy: ≤0.005mm
- ✓ Ultra-high rigidity design
- ✓ P4/P2 ultra-precision available