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cross roller bearing Mounting

Jul 21, 2020
Crossed Roller Bearing Mounting

Introduction to Crossed Cylindrical Roller Bearing:

The cylindrical rollers are perpendicular to each other, arranged in the V-shape raceway. The rollers are separated by spacer. The structure enables the single bearing to carry axial, radial and moment loads. At the same time, due to the dimensional miniaturization, this type of bearing has higher rigidity, higher rotational accuracy and larger loading capacity, which is applicable to the joints or rotating parts of industrial robots and manipulators, the rotary table of machining center, precision rotary table, medical equipment, measuring instrument, etc.

Structure

1. Split outer ring with integrated inner ring rotating

2. Split inner ring with integrated outer ring rotating

3. Integrated inner ring rotating and Integrated outer ring rotating

Series

HRB

Split Outer Ring

Integrated Inner Ring

Applicable to the occasion requiring Inner Ring Rotating

HRE

Integrated Outer Ring

Split Inner Ring

Applicable to the occasion requiring Outer Ring Rotating

HRU

Integrated Outer Ring with Mounting Holes

Integrated Inner Ring with Mounting Holes

No Need of Flange and Bearing Support;

Stable Rotating Accuracy and Torque;

Applicable to the occasion requiring Outer Ring and Inner Ring Rotating

HRA

Split Outer Ring

Integrated Inner Ring

Ultra-Thin

Compact Design of HRB;

Applicable to rotating parts of robots and manipulators

HRA-C

Integrated Outer Ring with a small Gap

Integrated Inner Ring

Ultra-Thin

Applicable to the occasion requiring Outer Ring Rotating

HSX

Split Outer Ring

Integrated Inner Ring

Ultra-Thin

Smaller cross section than HRB with the same shaft neck

Need of Flange and Bearing Support;

Applicable to the occasion requiring Inner Ring Rotating

HCRBH

Integrated Outer Ring

Integrated Inner Ring

Ultra-Thin

Need of Flange and Bearing Support;

Need of Flange and Bearing Support;

Applicable to the occasion requiring Outer Ring and Inner Ring Rotating and compact size


Selection based on Working Conditions

Working Conditions

 

Bearing Selections

Rotating parts and assembly methods

à

HRB, HRE, HRU, HRA, HRA-C, HCRBH, HSX

Service life, axial and radial dynamic loading capacity

à

Dimensions: ID, OD, Width

Working environment and torque

à

Seals: double seals, single seals, no seals

Precision grade

à

P5, P4, P2

Rigidity and radial clearance

à

Negative clearance (preload), positive clearance and larger positive clearance

 

Installations

1. Inspection of Parts before the Installation

Clean the spindle, housing or other installing parts to remove oil stain and other impurities; check to deburr the parts.

2. Installation of Bearing

In order to prevent the bearing from tilting to one side, please keep the bearing horizontal while using the plastic hammer to evenly tap the bearing. Gradually load the bearings onto the spindle or housing until it is fully contacted with the reference surface, which can be confirmed by the sound.

 

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