LM122130UU Single Linear Bushing, LM Metric Series, 12 mm ID x 21 mm OD x 30 mm L, High Carbon Steel Body and Retainer, Standard Type, Double End Seals, Slide Unit, Ball Bearing

Single LM122130UU 12 mm ID sealed linear bushing
✔️ High Carbon Steel body and retainer, 12 mm ID, 21 mm OD, 30 mm L

This single standard-type LM metric linear bushing provides smooth, sealed guidance for shafts in automation, CNC machines, 3D printers and robotics applications.

✅ Model: LM122130UU, LM Metric Series
✅ Type: Standard, double end seals, sealed ball bearing style
✅ Dimensions: 12 mm ID, 21 mm OD, 30 mm length (metric units)
✅ Materials: High carbon steel body and retainer, two end seals
✅ Load capacities: Dynamic 298 N, Static 711 N
✅ Weight 0.090 lb; ships typically in 1 day

💡 What is a linear bushing used for in CNC machines and automation linear slide units? Linear bushings are handy low-friction guides that support straight-line motion for shafts and rails while keeping out debris; they act like a sealed ball bearing for linear systems. Quick overview: - Smooth guided motion for shafts and linear guides in CNC, robotics and automation. - Reduces friction and wear, functioning like a sealed ball bearing inside a linear slide unit. - Commonly used for repeatable positioning in 3D printers, conveyors and pick-and-place equipment.