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H212 55mm Adapter Sleeve w/Lock Nut & Washer

Regular price $19.99 Sale price$40.00you save $20.01
SKU: H212-Adapter-Sleeve
UPC: 00193019347966





📐 H212 Dimensions (Typical)

Parameter Value
Shaft Diameter (d) 55 mm
Tapered Bore Diameter ~60 mm (1:12 taper)
Thread (Lock Nut) M60 × 2
Sleeve Length (L) ~70 mm
Lock Nut KM12
Lock Washer MB12
Taper Ratio 1:12

Commonly Compatible Bearings

🔹 Self-aligning Ball Bearings:

  • 1212K

  • 1312K

  • 2212K

🔹 Spherical Roller Bearings:

  • 21312K

  • 22212K


⚙️ Function

  • Mounts a bearing with a 1:12 tapered bore on a 55 mm cylindrical shaft.

  • Avoids the need for machining a tapered shaft.

  • The bearing is pushed up the sleeve’s taper and locked in place with a nut and washer.


🛠️ Installation Process

  1. Slide H212 sleeve onto the 55 mm shaft.

  2. Press the bearing onto the tapered sleeve.

  3. Tighten KM12 lock nut with a spanner wrench.

  4. Use MB12 lock washer to secure the nut by bending a tab into a nut slot.