Inner Ring LRTZ424830 Metric Needle Roller Bearing Race 42 mm ID x 48 mm OD x 30.5 mm Width High Carbon Steel For GTR486230 Assembly Single Piece Linear Slide Unit Compatible

Metric inner ring LRTZ424830 needle race 42 x 48 x 30.5 mm
✔️ 42 mm ID x 48 mm OD x 30.5 mm width; high carbon steel, single piece

This single inner ring (inner race) fits metric needle roller bearings and is typically used in linear slide units, transmissions, and compact machinery where a precise hardened race is needed.

✅ Model: LRTZ424830, Metric LRTZ series
✅ Bore type: Chamfered i.d.; needle roller bearing inner ring
✅ Dimensions: 42 mm inside diameter, 48 mm outside diameter, 30.5 mm width
✅ Material: high carbon steel, machined finish for assembly and fatigue resistance
✅ Compatible with: GTR486230 needle roller cage/assembly; good for linear slide unit installs
✅ Pack: single piece, SKU 861926, weight 0.220 lb each

💡 How do I choose an inner ring for a needle roller bearing assembly in a linear slide unit? Selecting the right inner ring comes down to matching dimensions, series compatibility, and material for load and speed. Start by confirming fit and application needs. - Verify exact ID, OD and width to match the cage and shaft; metric sizing is standard for linear slide unit use. - Match series and part compatibility (e.g., LRTZ inner ring with GTR cage) to avoid assembly issues. - Consider material and alternatives like ceramic rollers or hybrid options for high-speed or low-friction needs; sealed ball bearing options differ in sealing and lubrication needs.