uxcell KH2030PP 20mmx28mmx30mm Linear Ball Bearings - Carbon Steel CNC & 3D Printer Guide Rails - Perfect for DIY Robotics, Laser Cutters, and Industrial Automation Projects

Linear motion bearings provide freedom of movement in a single direction.Often used in conjunction with cylindrical shaft or rail.The steel ball is in point contact with the shaft and rotates with very little frictional resistance, so as to obtain smooth movement with high precision. Linear Ball Bearing Motion Slide Units Grease may be applied prior to use to improve smoothness.Maintain lubrication of optical shafts and guides during operation.The recommended load is 80% of the rated load, exceeding the rated load will affect fluidity.The table needs to be level during installation, otherwise it will interfere with installation calibration.Require regular cleaning and maintenance. Linear Motion Bearing X-Y tables, linear stages, machine slides and other advanced slides use linear motion bearings to provide movement along both X and Y multiple axis. Applications Replacement of parts of the 3D printer rail unit.Replacement of common machine tool guideway components.Laser (engraving machine) rail set-up and parts replacementConstruction and replacement of small planing machine tables, carriers, rails and parts. Mechanical Slides 2-axis, 3-axis Benches Linear Stages Standard Standard Extra Long Extra Long Extra Long Open Type Buying Options Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews 3.5 out of 5 stars 11 4.0 out of 5 stars 182 1.0 out of 5 stars 1 4.0 out of 5 stars 54 4.1 out of 5 stars 69 4.2 out of 5 stars 21 Quantity 2pcs 4pcs 1piece 2pcs 4pcs 4pcs Round Flange Round Flange Extra Long Square Flange Square Flange Extra Long Oval Flange Oval Flange Extra Long Buying Options Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews 4.0 out of 5 stars 50 4.3 out of 5 stars 71 4.0 out of 5 stars 40 3.9 out of 5 stars 34 4.3 out of 5 stars 3 5.0 out of 5 stars 4 Quantity 2pcs 2pcs 2pcs 2pcs 2pcs 2pcs Standard Standard Open Type Open Type Extra Long Extra Long Buying Options Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews 3.6 out of 5 stars 21 4.4 out of 5 stars 81 — 4.2 out of 5 stars 16 3.8 out of 5 stars 13 3.2 out of 5 stars 4 Quantity 2pcs 4pcs 1piece 2pcs 1piece 2pcs

[SIZE] - Model KH2030PP, 20mm Bore 28mm OD 30mm Length Metric Double Seal Linear Bearing

[USAGE] - Linear bearings are part of linear motion systems, often used in conjunction with cylindrical shafts or guideways.

[FEATURES] - These ball bearing with two rubber dust sealed to prevent ingress of dirt, water and foreign matter

[CAPABILITY] - Static Load Capacity (Cor) 950N, Dynamic Load Capacity (Cr) 790N (Recommended load is 80% of rated load, not to exceed rated load.)

[APPLICATIONS] - Mechanical slides, 2-axis and 3-axis tables, linear tables, 3D printers, ect.