FYH HE2306 Adapter Sleeve, 1 in Bore, Lock Nut and Washer, for UK206, UKX06, UK306

The FYH HE2300 series is the imperial (inch bore) version of the H2300 adapter sleeve (also spelt adaptor sleeve), for mounting a tapered bore bearing on a plain inch shaft. This page has 18 sizes for shaft diameters from 3/4 in to 4-1/2 in, HE2305 to HE2326. Choose the size from the Bore (inch) drop-down. For metric shafts see the H2300 series.

The H2300X adapter series is the one the catalogue pairs with UK200, UKX00 and UK300 tapered bore insert bearings (taper 1/12), and its table includes inch bore HE sleeves for some sizes. The last two digits of the sleeve number are the bearing bore code, so a 1 in HE2306 suits UK206, UKX06 and UK306 inserts. Each adapter is a slotted sleeve with a lock nut and a lock washer. The insert bearing and the adapter are separate items, so order both.

Where this product is used

• Mounting UK200, UKX00 and UK300 tapered bore insert bearings on plain shafts
• Pillow block (plummer block), flange and take-up bearing units that use UK series inserts
• Equipment exposed to vibration or impact, where adapter fixing of the bearing is used

Features

• Slotted adapter sleeve with a lock nut and a lock washer: the washer tab engages the sleeve slot and one tab is bent into a slot in the nut to lock it
• Tapered bore with adapter gives 360-degree shaft contact along the whole length of the bearing inner ring
• Suited to applications where shock loads could damage other locking devices
• A looser shaft fit is allowed with an adapter sleeve: h8 or h9 shaft tolerance is recommended
• Sleeve, lock nut and lock washer part numbers, overall length, lock nut size, mass and the matching UK bearings are given for each size in the table

Key specifications

Available sizes

B1 is the overall length of the sleeve with its lock nut, B2 is the lock nut width and d2 is the lock nut outside diameter. Inch values are in brackets. A dash means the catalogue table has no figure for that size under that model number (HE2307, HE2312); contact AIMS for the dimensions and mass. The catalogue gives no lock nut or washer number for HE2318 and HE2324. In the Suits bearings column a dash means the catalogue UK bearing table pairs no UK bearing with that sleeve (HE2318, HE2319 and HE2324); contact AIMS to confirm the bearing before ordering. Bearing numbers are from the catalogue UK bearing table; L3 and L2 are the triple lip and double seal versions of the same bearing.

Selecting the right option

Match the sleeve to the bearing as well as the shaft. The last two digits of the sleeve number are the bearing bore code (UK206, UKX06 and UK306 all use the HE2306), and the table lists the bearings for each size.

HE2318 and HE2319 both have a 3-1/4 in bore: choose by model number, not by shaft size alone.

This page is for inch shafts. For metric shafts use the H2300 series. The UK insert bearing is a separate item: add the UK200 series insert or the UK300 series insert.

HE2318, HE2319 and HE2324 have no UK bearing pairing in the catalogue table. Contact AIMS to confirm the bearing before ordering them.

HE2307 (1-1/8 in) and HE2312 (2-1/8 in) are not shown in the catalogue table under these model numbers, so their dimensions are not listed here. Contact AIMS to confirm them before ordering.

Fitting and use

Shaft: check the shaft for bends, burrs and other flaws before fitting. A looser shaft fit is allowable with an adapter sleeve: the recommended shaft tolerance is h8 or h9.

Fitting: slide the adapter sleeve onto the shaft at the bearing position; if it is too tight, open the slot with a screwdriver. Slide the bearing onto the sleeve, place a cylindrical reinforcing ring against the front face of the inner ring, and seat the sleeve by tapping lightly around its back. Fit the lock washer with its tab in the sleeve slot, then screw the lock nut on by hand with the tapered side facing the bearing. Secure the housing, tighten the lock nut with a torque wrench to the specified torque, bend one washer tab into a slot in the nut, and turn the shaft by hand to confirm it rotates freely.

Tightening: a lock nut that is too loose lets the sleeve slip, which wears the shaft and the bearing. A lock nut that is too tight expands the inner ring and reduces the internal clearance, which can cause overheating and early failure. The catalogue gives reference lock nut torques for UK, UKX and UK300 bearings by bore code, for standard and heavy load; the reference figures for each size are in its Model Details.

Related products

Fit these adapters to FYH UK200 series tapered bore insert bearings (UK205 to UK218) and FYH UK300 series tapered bore insert bearings (UK305 to UK328). Those inserts mount in FYH pillow block (plummer block) housings such as the P200 series pillow block housings and P300 series pillow block housings. Other FYH adapter sleeve series on this site: H200, H300, H2300, H3000 and H3100 (metric bore) and HE200 and HE300 (imperial bore).