UK211+H2311 50mm Wide Inner Ring Adapter Sleeve, Single Unit with Concentric Lock, Normal Duty Ball Bearing Insert, Spherical Outer Diameter, Double Lip Seals, Relubrication, 4400 kgf Dynamic Rating

50mm Wide Inner Ring Adapter Sleeve for Ball Bearings
✔️ I.D. 50mm, Wide inner ring, concentric adapter, double lip seals

This single adapter sleeve with matching concentric adapter is a normal duty ball bearing insert used on shafts and housings, common in conveyors, motors, agricultural drives, and mounted pillow block setups.

✅ I.D.: 50mm; wide inner ring; bearing steel insert
✅ Insert type: Ball bearing with concentric adapter locking
✅ O.D. style: Spherical O.D. for pillow blocks and housings
✅ Seals: Double lip contact seals with relubrication option
✅ Load ratings: Dynamic 4400 kgf, Static 3000 kgf
✅ Temp rating: Up to 212°F; HTS code 8483.20.40.40

💡 What is an adapter sleeve used for in mounted bearing setups? An adapter sleeve lets you mount a sealed ball bearing insert onto a shaft quickly and hold it concentric for reliable operation. Here’s why it’s handy on drives and housings: - Provides secure shaft locking without keyways, useful for pillow block bearings and flange housings - Works with sealed ball bearing inserts for dust protection and allows relubrication access - Aligns spherical O.D. inserts to tolerate misalignment in linear slide units, conveyor shafts, and motor drives