NART40R Roller Follower Metric 40 mm Inside Diameter Non-Separable Caged High-Carbon Chrome Steel Open Crowned Assembly with Oil Hole for Linear Slide Units and Cam Followers

Single Metric 40 mm NART40R caged roller follower
✔️ 40 mm ID; 80 mm rollers; caged non-separable; oil hole; -20 to 120°C

This single bearing is a caged, non-separable metric roller follower used for linear slide units, cam tracking, conveyor guides and heavy-duty machinery.

✅ ID: 40 mm
✅ Roller diameter: 80 mm, width: 30 mm
✅ Overall width: 32 mm; caged retainer, non-separable
✅ Material: high-carbon chrome steel, crowned roller surface
✅ Open design with oil hole for re-lubrication
✅ Dynamic load 44,900 N; Static load 81,500 N
✅ Temp range -20 to 120°C; sold as single bearing

💡 What is a roller follower used for in linear slide units and cam follower applications? Roller followers provide low-friction rolling contact to guide cams, rails, and slides. - They reduce friction and wear in linear slide units and cam mechanisms, improving smooth motion and lifespan. - Commonly used in conveyor systems, indexed mechanisms, and cam tracking where crowned rollers help alignment. - A handy choice when you need higher load capacity and impact resistance versus a sealed ball bearing or ceramic option.