FAG H311 Adapter Sleeve for 50mm Shafts

Description

The FAG H311 is a high-precision adapter sleeve designed for mounting tapered bore bearings onto cylindrical shafts. This component simplifies the installation process, provides a secure fit, and facilitates easy dismounting for maintenance. Manufactured by FAG, a leader in bearing technology, this sleeve ensures optimal performance and reliability in demanding industrial environments.

Specifications

• Manufacturer: FAG
• Type: Adapter Sleeve
• Model: H311
• Shaft Diameter (d1): 50 mm
• Overall Width (B1): 43 mm
• Taper: 1:12
• Material: Steel
• Corresponding Lock Nut: KM11
• Corresponding Locking Washer: MB11

Label Info

• Part Number: 12031300
• EAN: 4012801170628

Application

This adapter sleeve is widely used in machinery such as conveyors, industrial fans, pumps, and agricultural equipment to securely locate bearings on shafts without requiring special shaft machining.

Country of Origin

Germany

CO2 Impact

By purchasing this pre-owned component, you are contributing to a circular economy and helping to avoid 0.88 kg of CO2 emissions associated with the production of a new part.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What lock nut and locking washer are compatible with the H311 sleeve?

The standard components for the H311 adapter sleeve are the KM11 lock nut and the MB11 locking washer. These must be ordered separately.

For standard industrial applications, a shaft tolerance of h9 is recommended to ensure correct mounting, grip, and operational performance.

Yes, the H311 can be used with both open and sealed bearings that feature a corresponding 1:12 tapered bore, such as those in the 22211-E1-K or 22311-E1-K series.

Last Update: Friday, March 13, 2026

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