Block body: Operating Temperature -10°C to 80°C

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

Parameter	Typical range	Notes & selection driver
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

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 14728-1, DIN 645

Parent Products

This component is used in the following industrial products

Sliding Block/Carriage

A sliding block or carriage is the critical moving element in a linear guide or slide system.

View Product Details

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

Typical Suppliers & Equivalents

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

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

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Block body

Manufacturer profiles associated with Block body.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Shaft Bearing

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

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

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.

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.

Block body