20mm Twin Block Linear Slide Unit Open Aluminum Pillow Block with Two Pre Installed 20mm Ball Bushings Designed for Smooth Linear Motion on 20mm Shafts in CNC Automation and Mechanical Systems

20mm Open Linear Bearing Twin Block Slide Unit
✔️ Double Aluminum Pillow Block with Dual Ball Bushings

This open linear motion slide unit is built for smooth guidance on supported shafts. It features a twin block aluminum housing with two pre-installed 20mm ball bushings, making it handy for CNC machines, automation frames, 3D printers, and linear positioning systems that use 20mm shafts.

✅ Pack size: 1 twin block slide unit
✅ Designed for 20mm diameter shafts
✅ Open style housing for supported shaft systems
✅ Double size aluminum pillow block body
✅ Two pre-installed linear ball bushings
✅ Smooth linear motion with low friction
✅ Suitable for CNC, automation, and linear guide assemblies

Dimensions
(All dimensions listed are metric only)

Dimensions
(All dimensions listed are metric only)

Shaft diameter: 20 mm
h: 23 mm
e: 24 mm
W: 48 mm
L: 96 mm
F: 39 mm
T: 11 mm
h1: 10 mm
B: 35 mm
C: 70 mm
Mounting thread: M6
I: 12 mm

💡 Why are open linear slide units with twin ball bushings used in supported shaft systems?
Open linear bearing blocks are commonly used when shafts are mounted on supports and stability is critical.

• Open design allows the block to ride on supported shafts

• Twin ball bushings improve load distribution and alignment

• Aluminum housing keeps the assembly rigid but lightweight

• Ideal for CNC, automation, and precision linear motion setups

This slide unit delivers stable, smooth linear travel and is a solid choice for clean, repeatable motion in 20mm shaft systems.