Single KT12158C3 Roller Cage, 12 mm ID x 15 mm OD x 8 mm Width, High Carbon Steel C3 Tolerance, Precision Needle Bearing for Linear Slide Units and Machine Tools
✔️ Single unit, 12 mm ID x 15 mm OD x 8 mm W, carbon steel, C3
This needle roller cage is a slim bearing component used to position and retain needle rollers in compact assemblies like linear slide units, machine tools, actuators, and gearboxes. Sold as a single unit for easy replacement.
✅ Model: KT12158C3✅ Inside diameter: 12 mm
✅ Outside diameter: 15 mm
✅ Width: 8 mm
✅ Material: High carbon steel
✅ Roller tolerance: C3 (roller diameter)
✅ Dynamic load capacity: 3750 N; Static: 4200 N
✅ Max speed: 40000 rpm; Temperature: -20 to 120 °C
💡 What is a needle roller cage used for in linear slide units and machine tools? A needle roller cage spaces and guides needle rollers to deliver high radial load capacity in tight, low-profile assemblies. Quick intro: it's a handy part for compact bearing setups. - Keeps rollers aligned for consistent motion and even load sharing in needle bearing systems used on linear slide units - Reduces friction and wear compared with loose rollers, extending service life in machine tools and transmissions - Can be integrated with sealed ball bearing arrangements or hybrid ceramic elements for higher speed or improved corrosion performance