Sleeves

An adapter sleeve is a component for mounting rolling bearings on a shaft. It has a conical shape, consists of 3 parts, and serves as a transition element for single-step or multi-step shafts.

Operating features

An intermediate device is needed to mount a conical part on a cylindrical shaft. Application areas include construction, the automotive industry, repair, and other fields where a bearing needs to be installed on a cylindrical shaft with one or more steps, or on an axle. The component can also be used to secure a steel wire rope.

About adapter sleeves

AHX and AH type adapter sleeves are used to simplify the mounting of bearings with a tapered bore design onto the seating positions of stepped shafts. The adapter sleeve is pressed into the bearing’s inner bore, which is pushed against the shaft’s end face or another stationary part. An end washer is used for securing — it is not supplied as part of the set.

Product marking includes the letters AH and pairs of digits. The first digits indicate the series and dimensions, or the bearing line. The last digits in the designation indicate the bearing diameter.

For steel sleeves, the minimum strength is considered to be 430 N/mm².

Design features

Auxiliary devices are used to install a conical component on a cylindrical shaft. An adapter sleeve includes 3 elements:

• base;
• a ring capable of locking;
• tooth-shaped projections.

The taper between parts of the sleeve is called conicity. During manufacturing, this value must not exceed a ratio of 1:12. All such components share the following characteristics:

1. Inside — a cylindrical part for mounting on the shaft.
2. Outside — a conical shape for fitting a bearing of the corresponding diameter.
3. Securing is done by tightening a nut onto the external thread.
4. A toothed retaining ring that contacts the base is used to secure the mounting component.

Materials

Sleeves are made of alloyed metals that increase reliability and strength in operation. They are supplied together with lock washers. On larger components, clamping brackets (bugels) are additionally used for securing. Adapter sleeves are produced in various sizes, which broadens their range of application.

How to choose

When selecting, you should consider:

1. The diameter of the shaft axis on which the bearing is mounted.
2. The external dimensions of the component.
3. The mass of the assembly, which determines the load on the component.

Diameter of the clamped rope, mm	a, mm	b, mm	c, mm	d, mm	e, mm	Weight, g/pc.
1.5	1.8	3.6	3.5	5.3	6.0	0.21
2.0	2.4	4.8	4.5	6.9	7.0	0.24
2.5	3.0	6.0	5.1	8.1	9.0	0.50
3.0	3.5	7.0	6.1	9.6	11.0	0.84
3.5	4.0	8.0	7.0	11.0	13.0	1.32
4.0	4.5	9.0	7.9	12.4	14.0	1.81
4.5	5.1	10.2	8.9	14.0	16.0	2.61
5.0	5.6	11.2	9.8	15.4	18.0	3.57
6.0	6.6	13.2	11.6	18.2	21.0	5.86
6.5	7.2	14.4	12.6	19.8	23.0	7.85
7.0	7.8	15.6	13.6	21.4	25.0	9.53
8.0	8.8	17.6	15.4	24.2	28.0	13.7
9.0	9.9	19.8	17.3	27.2	32.0	19.8
10.0	10.9	21.8	19.1	30.0	35.0	26.4
11.0	12.1	24.2	21.1	33.2	39.0	35.8
12.0	13.2	26.4	23.0	36.2	42.0	45.8
13.0	14.2	28.4	25.0	39.2	46.0	59.7
14.0	15.3	30.6	26.9	42.2	49.0	73.5
16.0	17.5	35.0	30.9	48.4	56.0	111
18.0	19.6	39.2	34.8	54.4	63.0	159
20.0	21.7	43.4	38.5	60.2	70.0	217
22.0	24.3	48.6	42.7	67.0	77.0	291
24.0	26.4	52.8	46.4	72.8	84.0	375