Single Needle Roller Cage KT121512C3, 12 mm ID x 15 mm OD x 12 mm W, High Carbon Steel C3 Tolerance, Precision Bearing Component for Linear Slide Units

Single needle roller cage 12 mm ID × 15 mm OD × 12 mm W
✔️ High carbon steel, C3 tolerance; 5590 N dyn, 40,000 RPM

Compact single-piece needle roller cage for linear slide units, compact shaft supports, and roller assemblies where space, precision, and high speed are required.

✅ Model: KT121512C3, KT Series, single piece
✅ Dimensions: 12 mm ID, 15 mm OD, 12 mm width
✅ Material: high carbon steel; C3 tolerance of roller diameter
✅ Loads: dynamic 5590 N, static 7020 N
✅ Performance: max 40,000 RPM, temperature -20 to 120 °C
✅ Unit info: weight 0.010 lb, sold each, SKU 1911644

💡 What is a needle roller cage used for in linear slide units and compact assemblies? A needle roller cage keeps the rollers aligned and spaced to reduce friction and save radial space. - Improves load distribution in tight radial areas for bearing and roller assemblies, useful alongside sealed ball bearing setups - Enables precise motion and high-speed operation in linear slide unit applications and compact actuators - Maintains consistent roller spacing for reliable performance, especially with C3 tolerance components