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Ball Bearings (Ball Screw only) Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

Ball bearings designed exclusively for integration with ball screw mechanisms, featuring optimized raceway geometry, precision-grade balls, and specialized seals to handle axial loads while maintaining rotational accuracy. These components enable high-efficiency transmission by minimizing rolling resistance and providing smooth linear motion in industrial automation systems.

Working Principle

Operates on the principle of recirculating ball bearings within a helical groove system. As the screw rotates, balls circulate through load-bearing raceways, transferring rotational force into precise linear movement with minimal backlash and high repeatability.

Materials

Bearing rings: Chrome steel (AISI 52100/SUJ2) or stainless steel (AISI 440C); Balls: Chrome steel (Grade 10-100) or ceramic (Si3N4); Retainers: Polyamide (PA66), steel, or brass; Seals: Nitrile rubber (NBR) or fluoroelastomer (FKM).

Technical Parameters

Mounting Press-fit or clamp-type
Lubrication Grease (ISO VG 32-68) or oil mist
Load Capacity Dynamic: 2-50 kN, Static: 1-25 kN
Operating Speed Up to 10,000 rpm
Precision Grade ABEC 3-7 (ISO P0-P4)
Temperature Range -30°C to +120°C

Standards

ISO 3408, ISO 492, DIN 69051, JIS B 1192

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ball Bearings (Ball Screw only).

Parent Products

This component is used in the following industrial products

Ball Screw/Lead Screw

A precision mechanical component that converts rotary motion into linear motion with high efficiency and accuracy.

View Product Details

Engineering Analysis

Risks & Mitigation

Premature wear due to improper alignment
Contamination from inadequate sealing
Overheating from insufficient lubrication
Backlash accumulation from worn components

FMEA Triads

Trigger: Misalignment during installation
Failure: Uneven load distribution leading to premature wear
Mitigation: Use precision alignment tools and follow mounting procedures per ISO 3408

Trigger: Contaminant ingress through damaged seals
Failure: Abrasive wear and increased friction
Mitigation: Implement regular seal inspection and maintain clean operating environment

Trigger: Inadequate lubrication
Failure: Metal-to-metal contact causing overheating and seizure
Mitigation: Establish preventive maintenance schedule with proper lubricant selection

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Radial runout: ≤0.005 mm, Axial clearance: 0.002-0.015 mm

Test Method

ISO 15242 for vibration testing, ISO 492 for dimensional accuracy, manufacturer-specific endurance testing under axial load conditions

Buyer Feedback

★★★★☆ 4.9 / 5.0 (35 reviews)

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Ball Bearings (Ball Screw only) so far."

"Testing the Ball Bearings (Ball Screw only) now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

What distinguishes ball screw bearings from standard ball bearings?

Ball screw bearings feature optimized contact angles (typically 60°), specialized raceway profiles, and precision tolerances specifically designed to handle the axial loads and rotational dynamics of ball screw systems.

How often should ball screw bearings be lubricated?

Maintenance intervals depend on operating conditions: continuous operation requires lubrication every 1,000-2,000 hours, while intermittent use may extend to 5,000 hours. Always follow manufacturer specifications.

Can ball screw bearings be used in high-temperature applications?

Standard bearings operate up to 120°C. For higher temperatures (up to 250°C), specify special heat-resistant steels, ceramic balls, and high-temperature lubricants.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Ball Bearings (Ball Screw only)