Inner Ring WS1730 for Thrust Roller Bearing, Metric 17 mm ID x 30 mm OD, Single Inner Race Compatible with AZ17309 AZK17303.5 NTB1730, for Needle Roller Applications and Linear Slide Units

Single WS1730 inner ring, 17 mm ID x 30 mm OD
✔️ Metric inner ring WS1730: ID 17 mm, OD 30 mm, W 2.75 mm

This is a single metric inner ring for thrust roller bearings, used in needle roller and thrust assemblies on linear slide units, gearboxes and machine tool applications.

✅ Model: WS1730 (WS Metric Series) - single piece inner ring
✅ Internal diameter (I.D.): 17 mm
✅ Outer diameter (O.D.): 30 mm
✅ Width / overall height: 2.75 mm
✅ Fits: NTB1730, AZ17309, AZK17303.5 and similar thrust needle/roller parts
✅ Ideal for maintenance of sealed ball bearing housings and linear slide repairs

💡 What is a thrust roller bearing inner ring used for? This gives a quick practical answer and shows why replacing the inner ring is handy during service. - Acts as the hardened raceway for rollers or needles in thrust and needle roller assemblies. - Enables proper axial load support in linear slide units, gearboxes, and machine tool bearings. - Commonly replaced during maintenance to restore performance in sealed ball bearing or needle-bearing setups.