INDUSTRY COMPONENT

Block body

The block body is the main structural component of a sliding block or carriage in linear motion systems, providing mounting surfaces and housing for rolling elements.

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Component Specifications

Definition
A block body is the central structural element in linear motion systems such as linear guides or ball screws, designed to house and support rolling elements (balls or rollers) while providing precise mounting interfaces for machine components. It typically features mounting holes, lubrication ports, and sealing mechanisms to ensure smooth linear movement along a rail or shaft with minimal friction and high rigidity.
Working Principle
The block body operates by converting rotational or linear input forces into precise linear motion through rolling elements contained within its structure. As the block moves along a rail, the rolling elements circulate within recirculating paths inside the body, reducing friction and maintaining alignment. The body distributes loads evenly across its contact surfaces, ensuring stability and accuracy in motion transmission.
Materials
Typically made from high-strength alloy steel (e.g., AISI 52100, 440C) or stainless steel (e.g., SUS440C, SUS304) for corrosion resistance. May include aluminum alloys (e.g., 6061-T6) for lightweight applications. Surface treatments include hardening (HRC 58-62), chrome plating, or black oxide coating for wear resistance.
Technical Parameters
  • Weight 0.5-5 kg depending on size
  • Load Capacity Dynamic: 10-50 kN, Static: 15-75 kN
  • Precision Grade Normal (C), High (H), Precision (P), Ultra-Precision (UP)
  • Lubrication Interval 100-500 km or 6-12 months
  • Mounting Hole Pattern Standardized (e.g., M6, M8 threads)
  • Operating Temperature -10°C to 80°C
Standards
ISO 14728-1, DIN 645

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Block body.

block body sliding block linear carriage linear motion component industrial machinery parts precision engineering Block body in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Sliding Block/Carriage

The moving component of a linear guide system that travels along the rail.

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Engineering Analysis

Risks & Mitigation
  • Wear and tear from continuous operation
  • Misalignment causing premature failure
  • Contamination leading to increased friction
  • Overloading beyond rated capacity
  • Corrosion in harsh environments
FMEA Triads
Trigger: Inadequate lubrication
Failure: Increased friction and overheating
Mitigation: Implement regular maintenance schedules and use appropriate lubricants
Trigger: Misalignment during installation
Failure: Uneven wear and reduced accuracy
Mitigation: Follow precise alignment procedures and use alignment tools
Trigger: Contaminant ingress
Failure: Abrasion and jamming
Mitigation: Install effective seals and maintain clean operating environments

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.005 mm for mounting surfaces, ±0.01 mm for overall dimensions
Test Method
Dimensional inspection per ISO 14728, load testing per ISO 14728-2, hardness testing per ASTM E18

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 difference between a block body and a sliding block?

The block body is the core structural component of a sliding block or carriage, while the sliding block refers to the complete assembly including the body, rolling elements, seals, and end caps.

How do I select the right block body for my application?

Consider load capacity, precision requirements, environmental conditions (e.g., temperature, contamination), material compatibility, and mounting constraints. Consult manufacturer catalogs and engineering standards like ISO 14728.

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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