INDUSTRY COMPONENT

Cage/Spacer

Cage/Spacer is a precision component in slewing ring bearings that maintains proper spacing between rolling elements to ensure smooth rotation and load distribution.

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Component Specifications

Definition
The Cage/Spacer is a critical structural element within slewing ring bearings, designed to precisely separate and position rolling elements (balls or rollers) at uniform intervals around the bearing raceway. This component prevents direct contact between rolling elements, reduces friction and wear, ensures even load distribution across all elements, maintains alignment during operation, and facilitates proper lubrication flow. In industrial applications, it enhances bearing stability, extends service life, and supports high radial/axial loads in rotating machinery.
Working Principle
The Cage/Spacer operates by physically separating rolling elements within the bearing assembly to maintain consistent spacing. This prevents element-to-element contact that could cause friction, heat buildup, or premature wear. During rotation, it guides the rolling elements along the raceway, ensuring smooth motion and optimal load transfer. The design accommodates thermal expansion and mechanical stresses while preserving alignment, contributing to efficient energy transmission and reduced vibration in machinery.
Materials
Typically made from high-strength steel (e.g., AISI 52100, case-hardened), brass, or engineered polymers (e.g., polyamide, PEEK) for corrosion resistance and durability. Material selection depends on load capacity, speed, temperature range (-40°C to 120°C for polymers, higher for metals), and environmental conditions (e.g., moisture, chemicals).
Technical Parameters
  • Hardness 55-65 HRC for steel
  • Thickness 2-20 mm
  • Load Capacity Up to 1000 kN
  • Diameter Range 50-5000 mm
  • Weight Tolerance ±0.5%
  • Operating Temperature -50°C to 200°C
Standards
ISO 1132-1, DIN 5412

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cage/Spacer.

bearing cage spacer component slewing ring bearing rolling element separator industrial bearing parts machinery components Cage/Spacer Cage/Spacer in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Slewing Ring Bearing

A large-diameter bearing that supports axial, radial, and moment loads while enabling rotational movement between two structures.

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Engineering Analysis

Risks & Mitigation
  • Misalignment due to improper installation
  • Fatigue failure under cyclic loads
  • Corrosion in harsh environments
  • Thermal expansion mismatch
FMEA Triads
Trigger: Inadequate lubrication
Failure: Increased friction and wear leading to cage deformation
Mitigation: Implement regular lubrication schedules and use compatible greases/oils.
Trigger: Excessive load or shock
Failure: Cage fracture or rolling element jamming
Mitigation: Design with safety factors, conduct load testing, and install overload protection devices.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 mm dimensional accuracy per ISO standards
Test Method
Dimensional inspection, hardness testing, fatigue life testing under simulated loads

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a Cage/Spacer in a slewing ring bearing?

It maintains uniform spacing between rolling elements to prevent contact, reduce friction, ensure even load distribution, and enhance bearing longevity.

How do material choices affect Cage/Spacer performance?

Steel offers high strength for heavy loads, brass provides corrosion resistance, and polymers reduce weight and noise, with selection based on operational demands like temperature and speed.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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