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H3128 Bearing Adapter Sleeve with Lock Nut & Washer

Regular price $149.98
SKU: H3128-Adapter-Sleeve
UPC: 00193019347140





🛠️ H3128 Bearing Adapter Sleeve with Lock Nut & Washer

Parameter Typical Value / Description
Designation H3128
Suitable Shaft Diameter (d) 125 mm
Adapter Sleeve Bore Diameter (d1) ~130 mm
Thread Size (Lock Nut) M130×2
Sleeve Width (B) Approx. 85-90 mm
Lock Nut & Lock Washer Included (Typically KM28 Nut & MB28 Washer)
Material High-quality case-hardened steel
Surface Finish Precision ground
Approximate Weight ~7.0 - 8.5 kg (varies slightly by manufacturer)

🔧 Function & Application

The H3128 adapter sleeve is used to mount tapered bore bearings onto cylindrical shafts, allowing for quick installation and secure fixation using a lock nut and washer. This system eliminates the need for shaft shoulders or other complex machining operations.

✅ Common Industrial Applications:

  • Spherical roller bearings (e.g., 22228K, 23228K)

  • Conveyor and drive systems

  • Pumps, compressors, and fans

  • Industrial gearboxes and motors

  • Mining and heavy equipment

  • Paper mills, steel plants, and cement industries

Its robust construction supports demanding load conditions, high speeds, and exposure to harsh operating environments.