Double Size Aluminum Pillow Block Open Slide Unit With Two Preinstalled 40mm Ball Bushings For 40mm Shafts, Open Linear Motion Bearing Support For CNC Machining And Automation, High Precision Guide Block For Smooth Rigid Motion

Twin 40mm bearing linear slide unit with dual blocks
✔️ Pack: single unit with 2 pre-installed 40mm ball bushings

OpenTwin 40mm bearing twin block slide unit combines two aluminum pillow blocks with pre-installed 40mm ball bushings for smooth linear motion on 40mm shafts. This compact, open-slide design is handy for CNC machines, automation rigs, and hobbyist builds where easy access and steady shaft support matter.

Shaft diameter	40 mm
Main dimensions (H x E x W x L)	42 x 45 x 90 x 175 mm
Mounting hole pattern	h1 19 mm, B 65 mm, C 140 mm
Mounting thread	M10

✅ 40 mm shaft compatibility
✅ Double pillow blocks for extra rigidity
✅ Aluminum housing with open-slide design for easy access and cooling
✅ 2 pre-installed 40 mm ball bushings for quick setup
✅ M10 mounting holes for secure attachment

💡 What is a pillow block bearing used for in linear motion systems?

This handy component supports a rotating shaft while keeping it aligned in a moving frame. - Handy for CNC machines, 3D printers, and automation setups - Keeps shaft rotation smooth and reduces wear - Works with 40 mm shafts and standard mounting patterns - Compatible with sealed ball bearings or ceramic variants for different service conditions