Linear Guide Blocks

Product Specifications

Technical details and manufacturing context for Linear Guide Blocks

Definition

Linear guide blocks are precision components used in machinery and equipment manufacturing, specifically within the Carriage (Y-axis) assembly. They house recirculating ball bearings and interface directly with linear guide rails, enabling precise linear motion by converting rotational forces into controlled horizontal movement while maintaining alignment and minimizing friction. In the Y-axis carriage context, these blocks support the load and ensure accurate positioning during machining or assembly operations.

These blocks are available in standard series sizes with widths from 15 to 65 mm, heights from 24 to 90 mm, and lengths from 50 to 220 mm, conforming to ISO 10285. They offer dynamic load ratings from 5.4 to 150 kN and static load ratings from 7.2 to 190 kN per ISO 14728-1. Precision grades range from C0 to C5, with running accuracy of ±0.005 to ±0.02 mm over 100 mm travel and repeatability of ±0.001 to ±0.005 mm for positioning applications, per ISO 230-2. Maximum speed is 2 to 5 m/s, limited by lubrication and seal, and operating temperature ranges from -20 to 80°C. Blocks are factory pre-lubricated with grease or oil. Materials on file include carbon steel, stainless steel, and engineering plastics; bearing steel is GCr15 per GB/T 18254. Weight ranges from 0.2 to 8.5 kg depending on size.

These values are directory reference ranges and must be confirmed for the actual model and application with the legal manufacturer or supplier. Standards listed are procurement references, not certification guarantees. Always verify model-specific specifications and compliance before selection.

Working Principle

Linear guide blocks operate on the principle of recirculating ball bearings that roll between the block's raceways and the linear guide rail. As the carriage moves along the Y-axis, balls circulate through load-bearing and return paths within the block, providing continuous rolling contact that reduces friction and enables smooth, precise linear motion with high rigidity and load capacity.

Common Materials

Carbon steel, Stainless steel, Engineering plastics

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	15–65 mm	Standard series sizesISO 10285
Height	24–90 mm	Overall height from rail topISO 10285
Length	50–220 mm	Block length along railISO 10285
Dynamic Load Rating	5.4–150 kN	Basic dynamic load ratingISO 14728-1
Static Load Rating	7.2–190 kN	Basic static load ratingISO 14728-1
Precision Grade	C0–C5	C0 highest precisionISO 10285
Running Accuracy	±0.005–±0.02 mm	Over 100 mm travelISO 10285
Repeatability	±0.001–±0.005 mm	For positioning applicationsISO 230-2
Maximum Speed	2–5 m/s	Limited by lubrication and seal
Operating Temperature	-20–80 °C	Continuous operation
Lubrication	Grease or oil	Factory pre-lubricated
Material	GCr15	Bearing steelGB/T 18254
Weight	0.2–8.5 kg	Depends on size

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

Components / BOM

Ball retainer Part
Holds and guides recirculating balls in their path

Material: Stainless steel
End seals Part
Prevent contamination and retain lubrication

Material: Synthetic rubber
Lubrication ports Part
Provide access points for grease or oil lubrication

Material: Brass
Recirculating Ball Bearings
The rolling elements circulating through the load-bearing and return paths.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Carriage (Y-axis)

View system integration details

Manufacturers of Linear Guide Blocks

Manufacturer profiles associated with Linear Guide Blocks.

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Frequently Asked Questions

What are the standard sizes for linear guide blocks?

Standard series sizes include widths from 15 to 65 mm, heights from 24 to 90 mm, and lengths from 50 to 220 mm, per ISO 10285. These are reference ranges; confirm exact dimensions for your model.

What load ratings are available?

Dynamic load ratings range from 5.4 to 150 kN, and static load ratings from 7.2 to 190 kN, per ISO 14728-1. Verify the specific rating for your application.

What precision grades are offered?

Precision grades range from C0 to C5, with running accuracy of ±0.005 to ±0.02 mm over 100 mm travel and repeatability of ±0.001 to ±0.005 mm for positioning, per ISO 10285 and ISO 230-2.

What materials are used?

Materials on file include carbon steel, stainless steel, and engineering plastics. Bearing steel is GCr15 per GB/T 18254. Confirm material suitability for your environment.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Max 10 MPa (static), Max 5 MPa (dynamic)
other spec:	Max velocity: 5 m/s, Max acceleration: 50 m/s², Load capacity: 1-100 kN depending on size
temperature:	-20°C to +80°C (standard), -40°C to +120°C (special variants)

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards