20mm to 100mm shaft
Adapter Sleeves (H Series)
For mounting tapered bore bearings at any position along a plain shaft.
Enquire NowAdapter Sleeves and Withdrawal Sleeves
Mounting hardware for fitting tapered-bore bearings onto plain cylindrical shafting, stocked across the common adapter and withdrawal sleeve sizes with matching locknuts and lockwashers.
Product Range
Products We Stock
Sleeve and locking hardware for tapered bore bearing mounting.
20mm to 100mm shaft
Withdrawal Sleeves (AH Series)
For mounting at the end of a shaft, allowing easier removal.
Enquire Now Matched to sleeve sizes
KM Locknuts
Precision locknuts for securing sleeve-mounted bearings.
Enquire Now Matched to locknut sizes
MB Lockwashers
Tab washers preventing locknut rotation once tightened.
Enquire Now Select larger sizes
Hydraulic Nuts
For controlled mounting and dismounting of large bearings under hydraulic pressure.
Enquire NowSpecifications
Typical Specifications
Representative ranges across the stocked adapter and locking hardware range.
Standard Reference
DIN 5406 locknut dimensions
- Shaft diameter range
- 20 mm to 100 mm
- Taper ratio
- 1:12 standard
- Sleeve type
- Adapter or withdrawal
- Locknut type
- KM standard, KMT with locking screws
- Lockwasher type
- MB tab washer
- Material
- Bearing steel
- Temperature range
- -20 C to +120 C
- Compatibility
- Matched to spherical and self aligning bearings
Our Brands
Brands For
This Range
Stocked across our general bearing brand range.
Buying Guide
Choosing Adapter Mounting Hardware
What to confirm before ordering.
Step 01
Match sleeve to bearing bore
Adapter sleeves are sized to a specific bearing bore designation, confirm the exact bearing you are mounting.
Step 02
Adapter or withdrawal sleeve
Adapter sleeves mount anywhere on a shaft, withdrawal sleeves are used at a shaft end for easier future removal.
Step 03
Order the matching locknut and washer
Locknuts and lockwashers are sized to the sleeve, always order as a set.
Standards
Standards and Quality
Dimensional standards for this hardware family.
DIN 5406
Locknuts and Washers
Standard dimensions for KM locknuts and MB lockwashers.
1:12 Taper
Standard Adapter Taper
Industry standard taper ratio for adapter and withdrawal sleeves.
Matched Fit
Bearing-Specific Sizing
Sleeves matched to specific bearing bore designations.
Traceable
Batch Marked
Stamped size marking on every sleeve and locknut.
Applications
Common Applications
Typical mounting scenarios for this hardware.
01
Spherical Roller Mounting
Adapter sleeves fitting tapered bore spherical rollers to plain shafts.
02
Self Aligning Bearing Mounting
K-type bearing installation on cylindrical shafting.
03
Conveyor Pulley Shafts
Sleeve-mounted bearings in split plummer blocks.
04
Crusher Shafts
Heavy duty sleeve mounting under shock load.
05
Fan Shaft Assemblies
Adapter-mounted bearings on industrial fans.
06
Large Motor Shafts
Sleeve mounting for large frame motor bearings.
Industries
Industries We Serve
Where tapered bore bearings need shaft mounting.
Heavy Industry
Spherical roller bearing mounting on plain shafting.
Cement and Quarry
Crusher and screen shaft bearing mounting.
Material Handling
Conveyor pulley bearing mounting.
General Engineering
Any tapered bore bearing installation.
FAQ
Frequently Asked Questions
Common questions about adapter bearings, answered by our counter team.
What is the difference between an adapter and withdrawal sleeve?
An adapter sleeve can mount a bearing anywhere along a shaft. A withdrawal sleeve is used at the shaft end, allowing the bearing to be removed by driving the sleeve out without disturbing the rest of the shaft.
Do you stock the locknut and washer separately?
Yes, though we recommend ordering the sleeve, locknut and washer together as a matched set to guarantee correct fit.
How is the correct clearance reduction set during mounting?
Clearance reduction is measured with a feeler gauge as the locknut is tightened, following the bearing manufacturer's specified reduction values, we can advise on the procedure for common sizes.
Need adapter sleeves and locknuts priced?
Send the bearing designation on WhatsApp for same-day confirmation.
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