Open linear optical axis guide slider bearing SBR20 50mm*45mm*48mm


The ZLV SBR20 is a durable and precise open linear optical axis guide slider bearing, offering excellent load capacity, low friction, and easy installation. Ideal for various machinery like engraving and woodworking devices, it’s a cost-effective, customizable solution for high-precision movement applications.

Open linear optical axis guide slider bearing SBR20 50mm*45mm*48mm

The ZLV Open Linear Optical Axis Guide Slider Bearing SBR20 is an integral component of any motion-related projects, offering superior stability and precision. Crafted with a high-quality hardened shaft and anti-skew aluminium rail, the SBR20 offers unparalleled durability and performance.


Category Parameter Value
Dimensions Total Height (H) 50mm
Rail Width (WR) 45mm
Slider Width (W) 48mm
Fastening Slide Rail Fixing Screw(mm) m5*20
Load and Weight Rail Load (C/KN)  1370C/KN
Slide Weight (KG/PCS) 0.2kg/pcs
Rail Weight (KG/M) 3.5kg/m
Pricing Guide Rail Price (USD) $5.5
Slider Price (USD) $1.2

Open linear optical axis guide slider bearing SBR20 50mm*45mm*48mm drawing

Features and Advantages

  • High Precision: The SBR series is known for its high precision, owing to its manufacturing process where the screw holes for the hardened shaft and base aluminium rail are drilled after the shaft has undergone hardening treatment.
  • Cost-Effective: The SBR20 provides an economical solution with a short production cycle that makes it a viable alternative to traditional square linear guides.
  • Easy Installation: Its design allows for easy installation, minimizing downtime and ensuring seamless integration into your current system.
  • Customizable: The ZLV SBR20 can be customized to meet specific requirements, offering flexibility for various applications.

Applications and Benefits

The Open Linear Optical Axis Guide Slider Bearing SBR20 is widely used in automated transmission devices such as engraving machinery, woodworking machinery, printing machinery, industrial robots and more.

When it comes to its installation, the non-ball type polymer liner on the shaft is the last component to be considered. It can be made of high-performance bearing-grade material suitable for aluminium or other substrates, offering good load capacity (equivalent to 20% of the ball liner load capacity) and a low friction coefficient ranging from 0.05 to 0.25. This liner bearing can operate smoothly in harsh environments with particles that could damage the sealed ball liner and under impact loads that could damage the ball bearing system.

Additionally, the noise from ball circulation, which could be an issue with ball liners or square guide bearings, is virtually non-existent with this liner bearing. Due to its large contact area, it does not need a hardened steel shaft equipped with a ball liner. This stainless-steel shaft system is suitable for both clean environments such as those found in the semiconductor and pharmaceutical industries, and harsh environments like food processing.

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