Locking Bushes

Locking bushes are keyless shaft locking devices which use friction to connect from a shaft to a hub. They are designed for ultra fast mounting of several elements such as gears, pulleys, and sprockets.

How do locking bushes work?

There are two main types of locking bushes which work in different ways. A mechanical locking bush has a number of axial bolts which are tightened to expand tapered cones which in turn grip the shaft and hub. Some locking bushes are designed for hydromechanical purposes, they work mostly by compressing a pressure medium that expands the inner and outer walls of the bush. Loosening the screw will immediately dismantle the bush. This can be repeated a number of times.

Why use locking bushes?

Locking bushes allow a connection without the need for keyways or splines and collars. They are useful where a very high accuracy is required. The main advantages of locking bushes include their easy dismantling, ease of setting, lower machining costs and a backlash free connection without wear or corrosion damage.


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Description Price Shaft Diameter Outside Diameter Flange Diameter Length Rated Torque Material Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 188-3177
Mfr. Part No.7012 - 19x47
BrandRingfeder
£46.76
Each
Units
- 47mm - 27.5mm - - - -
RS Stock No. 188-3178
Mfr. Part No.7012 - 20x47
BrandRingfeder
£46.76
Each
Units
- 47mm - 27.5mm - - - -
RS Stock No. 188-3201
Mfr. Part No.7012 - 90x130
BrandRingfeder
£89.76
Each
Units
- 130mm - 39.5mm - - - -
RS Stock No. 188-3179
Mfr. Part No.7012 - 22x47
BrandRingfeder
£46.76
Each
Units
- 47mm - 27.5mm - - - -
RS Stock No. 188-3168
Mfr. Part No.4061 - 55x100
BrandRingfeder
£60.54
Each
Units
42 mm, 45 mm, 48 mm 100mm - 34.5mm 1600 nm, 1950 nm, 2300 nm - - -
RS Stock No. 188-3175
Mfr. Part No.4061 - 90x155
BrandRingfeder
£117.71
Each
Units
65 mm, 70 mm, 75 mm 155mm - 44.5mm 6000 nm, 7550 nm, 9150 nm - - -
RS Stock No. 188-3173
Mfr. Part No.4061 - 80x145
BrandRingfeder
£96.50
Each
Units
60 mm, 65 mm, 70 mm 145mm - 37.8mm 4000 nm, 4900 nm, 5750 nm - - -
RS Stock No. 188-3195
Mfr. Part No.7012 - 65x95
BrandRingfeder
£69.02
Each
Units
- 95mm - 33.5mm - - - -
RS Stock No. 188-3163
Mfr. Part No.4061 - 40x72
BrandRingfeder
£43.57
Each
Units
30 mm, 31 mm, 32 mm 72mm - 28.5mm 900 nm, 910 nm, 990 nm - - -
RS Stock No. 188-3154
Mfr. Part No.4061 - 16x41
BrandRingfeder
£26.87
Each
Units
12 mm, 13 mm, 14 mm 41mm - 18.5mm 90 nm, 110 nm, 130 nm - - -
RS Stock No. 188-3197
Mfr. Part No.7012 - 75x115
BrandRingfeder
£83.61
Each
Units
- 115mm - 39.5mm - - - -
RS Stock No. 188-3202
Mfr. Part No.7012 - 95x135
BrandRingfeder
£92.46
Each
Units
- 135mm - 39.5mm - - - -
RS Stock No. 188-3160
Mfr. Part No.4061 - 30x52
BrandRingfeder
£33.49
Each
Units
24 mm, 25 mm, 26 mm 52mm - 26mm 450 nm, 500 nm, 560 nm - - -
RS Stock No. 188-3180
Mfr. Part No.7012 - 24x50
BrandRingfeder
£48.22
Each
Units
- 50mm - 27.5mm - - - -
RS Stock No. 188-3169
Mfr. Part No.4061 - 62x110
BrandRingfeder
£62.74
Each
Units
48 mm, 50 mm, 52 mm 110mm - 34.5mm 3000 nm, 3300 nm, 3500 nm - - -
RS Stock No. 188-3191
Mfr. Part No.7012 - 50x80
BrandRingfeder
£60.76
Each
Units
- 80mm - 33.5mm - - - -
RS Stock No. 188-3187
Mfr. Part No.7012 - 40x65
BrandRingfeder
£51.23
Each
Units
- 65mm - 27.5mm - - - -
RS Stock No. 188-3183
Mfr. Part No.7012 - 30x55
BrandRingfeder
£48.22
Each
Units
- 55mm - 27.5mm - - - -
RS Stock No. 188-3156
Mfr. Part No.4061 - 20x46
BrandRingfeder
£26.87
Each
Units
15 mm, 16 mm, 17 mm 46mm - 21mm 140 nm, 170 nm, 200 nm - - -
RS Stock No. 188-3176
Mfr. Part No.4061 - 95x170
BrandRingfeder
£136.09
Each
Units
65 mm, 70 mm, 75 mm 170mm - 52.5mm 6700 nm, 8450 nm, 10200 nm - - -