Single IRT1720-1 Needle Roller Bearing Metric Series Tapered I.D. 17 mm O.D. 21 mm Width 20.5 mm High Carbon Steel Fits TA2120Z YT2120 Shells Linear slide unit compatible

Single IRT1720-1 needle roller bearing, metric series
✔️ Tapered I.D. 17 mm, O.D. 21 mm, Width 20.5 mm, high carbon steel

This single IRT1720-1 needle roller bearing has a tapered inner diameter and high carbon steel construction. It is typically used in linear slide units, transmission assemblies, and shell type housings where compact radial support is handy.

✅ Bore type Tapered I.D. 17 mm
✅ Outer diameter O.D. 21 mm
✅ Overall width 20.5 mm
✅ Material High carbon steel, metric series IRT
✅ Fits TA2120Z and YT2120 shell type needle roller bearings
✅ Single bearing, SKU 861011, weight 0.040 lb each

💡 What is a needle roller bearing used for in compact linear slide units and shell housings? Needle roller bearings provide high radial load capacity in a compact package for tight spaces. Here’s why they are handy for linear slide units and shell type setups: - Provide slim rolling contact with minimal cross section for linear slide unit applications and guides - Handle heavy radial loads compared to ball bearings while saving space, ideal for shell housings - Compatible with sealed ball bearing variants or ceramic options when corrosion resistance or low friction is needed - Easily pairs with TA2120Z and YT2120 shell types for straightforward replacement or upgrade