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HCH Four-Point Contact Precision Bearings
PRODUCT 04 · FOUR POINT CONTACT BEARING

Four-Point Contact Bearing

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
  • ✓ Separable inner and outer rings
  • ✓ IATF 16949 / ISO 9001 certified
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Technical Specifications

Parameter Specification
Bearing TypeFour-point contact ball bearing (single row)
Precision GradeP5 / P4 (high precision)
Contact Angle35° standard
StructureSeparable inner and outer rings; four-point ball-to-raceway contact
Load DirectionCarries radial and bidirectional axial loads simultaneously
Replacement CapabilityA single bearing can replace face-to-face/back-to-back paired angular contact ball bearings
MaterialGCr15 high carbon chrome bearing steel
Bore Diameter Range10mm - 200mm
AdvantagesSaves installation space and simplifies structural design
Quality StandardCompliant with ISO 9001 / IATF 16949; CNAS laboratory test reports available

Product Features

Bidirectional Axial Load

A single bearing carries radial and bidirectional axial loads simultaneously, simplifying the support structure.

Space-Saving Installation

Replaces paired angular contact bearing sets, reducing axial dimensions and weight.

Separable Rings

Separable inner and outer rings facilitate mounting and dismounting, suiting precision rotary and positioning mechanisms.

35° Contact Angle, High Rigidity

Standard 35° contact angle design delivers strong load capacity and stable operation.

Typical Applications

Four-point contact ball bearings are especially suited to applications requiring bidirectional axial load capacity with limited installation space. HCH four-point contact bearings are supplied in volume to the following industries:

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Reducers

Gearboxes, worm gear reducers

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Rotary Mechanisms

Precision rotary tables, turntables

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Automotive

EPS steering systems

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Industrial Drives

Heavy-duty machinery drive systems

Learn more:

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