Bushing/Bearing: Load Capacity 500-5000 N, Length 10-100 mm

Component Specifications

Definition

A bushing (also called plain bearing or sleeve bearing) and bearing are mechanical components designed to constrain relative motion to only the desired motion and reduce friction between moving parts. In hinge assemblies, they specifically facilitate rotational movement between connected parts while minimizing wear, vibration, and energy loss. Bushings typically provide sliding contact surfaces, while bearings (such as ball or roller bearings) use rolling elements for even lower friction.

Working Principle

Bushings operate on the principle of sliding friction, where a lubricated surface allows one part to slide against another with minimal resistance. Bearings use rolling elements (balls, rollers) that rotate between inner and outer races, converting sliding friction into rolling friction which significantly reduces torque requirements and wear. Both create precise clearances that maintain alignment while accommodating thermal expansion and load variations.

Materials

Bronze alloys (SAE 660, C93200), sintered metals with oil impregnation, PTFE composites, stainless steel (AISI 440C), ceramic (silicon nitride), polymer (acetal, nylon), babbitt metal for high-load applications. Material selection depends on load capacity, speed, temperature, and corrosion resistance requirements.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	10-100 mm
Hardness	60-90 HRB
Clearance	0.02-0.1 mm
Speed Rating	Up to 3000 rpm
Load Capacity	500-5000 N
Inner Diameter	5-50 mm
Outer Diameter	8-60 mm
Temperature Range	-40°C to 200°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 4378, ISO 199, DIN 1494, DIN 1850, ANSI/ABMA 9, ANSI/ABMA 11

Parent Products

This component is used in the following industrial products

Hinge Assembly

A mechanical assembly that enables rotational movement of the manway door on a pressure vessel.

View Product Details

Jib Foot Connection

Structural component that connects the jib (boom) to the crane's rotating platform or pedestal.

View Product Details

Engineering Analysis

Risks & Mitigation

Wear and tear leading to increased clearance
Lubrication failure causing overheating
Corrosion in harsh environments
Misalignment during installation
Fatigue failure under cyclic loading
Contamination from debris

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction, overheating, seizure
Mitigation: Implement scheduled lubrication program, use automatic lubricators, monitor temperature

Trigger: Misalignment during assembly
Failure: Uneven wear, premature failure, vibration
Mitigation: Use alignment tools during installation, implement quality checks, train assembly personnel

Trigger: Contamination ingress
Failure: Abrasive wear, surface damage, increased clearance
Mitigation: Install proper seals, maintain clean environment, implement protective covers

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

ISO 286-2:2010 for dimensional tolerances, radial clearance per ISO 5753:1991, surface roughness Ra ≤ 0.8 μm

Test Method

ASTM D4172 for wear testing, ISO 4386 for compression testing, vibration analysis per ISO 10816, lubricant compatibility testing

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Bushing/Bearing

Manufacturer profiles associated with Bushing/Bearing.

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Related Components

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Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Frequently Asked Questions

What is the difference between a bushing and a bearing in hinge applications?

Bushings provide sliding contact surfaces and are simpler/cheaper, suitable for low-speed applications. Bearings use rolling elements for lower friction and higher precision, ideal for high-speed or heavy-load hinge operations.

How often should hinge bushings/bearings be lubricated?

Lubrication intervals depend on operating conditions: light duty - annually, moderate duty - quarterly, heavy duty - monthly. Use manufacturer-recommended lubricants compatible with the material.

Can bushings and bearings be used interchangeably in hinge assemblies?

Not without redesign. Bushings require different housing designs and clearances than bearings. Substitution affects load capacity, friction characteristics, and maintenance requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Bushing/Bearing