Bearing Housing Adapter Sleeve With Lock Nut And Washer H219 For 85 mm Shaft Diameter, 90 mm Bore, M90x2 Thread, Includes KM19 Lock Nut And MB19 Washer, Compatible With 2219K 1319K 1219K And Other Spherical Roller Bearings

H219 Adapter Sleeve for Bearing Housing and Lock Nut
✔️ Shaft 85 mm, bore 90 mm, M90×2 thread, ~60 mm, single unit

This adapter sleeve lets a tapered bore bearing mount on a straight shaft by tightening the lock nut, which pulls the bearing onto the sleeve and locks it in place with the washer. It's designed to fit tapered bore bearings such as 2219K, 1319K, and 1219K on cylindrical shafts.

✅ H219 designation
✅ Shaft diameter d 85 mm
✅ Bore diameter d1 90 mm
✅ Thread G M90×2
✅ Sleeve width B1 ≈ 60 mm
✅ Lock Nut KM19 and Lock Washer MB19
✅ Compatible bearings 2219K, 1319K, 1219K
✅ Material carbon steel

💡 What is an adapter sleeve used for in bearing mounting? An adapter sleeve converts a straight shaft to accept tapered bore bearings by drawing the bearing onto the sleeve with a lock nut and washer.

Useful notes: - enables mounting tapered bore bearings on straight shafts - locks in place with KM19 lock nut and MB19 lock washer - common in machinery with pulleys, belts, and gear drives

Feature	Specification
Adapter Sleeve Designation	H219
Suitable Shaft Diameter (d)	85 mm
Bore Diameter of Sleeve (d1)	90 mm
Thread (G)	M90 × 2
Sleeve Width (B1)	~60 mm
Lock Nut Designation	KM19
Lock Washer Designation	MB19
Compatible Bearings	2219K, 1319K, 1219K, etc.
Material	Typically carbon steel
Used With	Tapered bore bearings on cylindrical shafts