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. 188-3155
Mfr. Part No.4061 - 18x44
BrandRingfeder
R 521.16
Each
units
14 mm, 15 mm, 16 mm 44mm - 18.5mm 110 nm, 130 nm, 160 nm - - -
RS stock no. 188-3190
Mfr. Part No.7012 - 48x80
BrandRingfeder
R 1,190.46
Each
units
- 80mm - 33.5mm - - - -
RS stock no. 188-3166
Mfr. Part No.4061 - 48x80
BrandRingfeder
R 934.01
Each
units
36 mm, 38 mm, 40 mm 80mm - 30mm 1150 nm, 1350 nm, 1550 nm - - -
RS stock no. 188-3174
Mfr. Part No.4061 - 85x155
BrandRingfeder
R 2,245.38
Each
units
60 mm, 65 mm, 70 mm 155mm - 45.8mm 6050 nm, 7250 nm, 8500 nm - - -
RS stock no. 188-3156
Mfr. Part No.4061 - 20x46
BrandRingfeder
R 520.09
Each
units
15 mm, 16 mm, 17 mm 46mm - 21mm 140 nm, 170 nm, 200 nm - - -
RS stock no. 188-3201
Mfr. Part No.7012 - 90x130
BrandRingfeder
R 1,801.75
Each
units
- 130mm - 39.5mm - - - -
RS stock no. 188-3191
Mfr. Part No.7012 - 50x80
BrandRingfeder
R 1,189.20
Each
units
- 80mm - 33.5mm - - - -
RS stock no. 188-3178
Mfr. Part No.7012 - 20x47
BrandRingfeder
R 900.40
Each
units
- 47mm - 27.5mm - - - -
RS stock no. 188-3197
Mfr. Part No.7012 - 75x115
BrandRingfeder
R 1,669.46
Each
units
- 115mm - 39.5mm - - - -
RS stock no. 188-3175
Mfr. Part No.4061 - 90x155
BrandRingfeder
R 2,447.95
Each
units
65 mm, 70 mm, 75 mm 155mm - 44.5mm 6000 nm, 7550 nm, 9150 nm - - -
RS stock no. 188-3157
Mfr. Part No.4061 - 21x50
BrandRingfeder
R 567.14
Each
units
16 mm, 17 mm, 18 mm 50mm - 22.5mm 250 nm, 290 nm, 330 nm - - -
RS stock no. 188-3158
Mfr. Part No.4061 - 24x50
BrandRingfeder
R 567.52
Each
units
19 mm, 20 mm, 21 mm 50mm - 22.5mm 300 nm, 340 nm, 390 nm - - -
RS stock no. 188-3153
Mfr. Part No.4061 - 14x37
BrandRingfeder
R 520.84
Each
units
10 mm, 11 mm, 12 mm 37mm - 14.8mm 37.5 nm, 46 nm, 60 nm - - -
RS stock no. 188-3169
Mfr. Part No.4061 - 62x110
BrandRingfeder
R 1,277.12
Each
units
48 mm, 50 mm, 52 mm 110mm - 34.5mm 3000 nm, 3300 nm, 3500 nm - - -
RS stock no. 188-3182
Mfr. Part No.7012 - 28x55
BrandRingfeder
R 931.22
Each
units
- 55mm - 27.5mm - - - -
RS stock no. 188-3202
Mfr. Part No.7012 - 95x135
BrandRingfeder
R 1,856.07
Each
units
- 135mm - 39.5mm - - - -
RS stock no. 188-3194
Mfr. Part No.7012 - 60x90
BrandRingfeder
R 1,218.69
Each
units
- 90mm - 33.5mm - - - -
RS stock no. 188-3186
Mfr. Part No.7012 - 38x65
BrandRingfeder
R 993.05
Each
units
- 65mm - 27.5mm - - - -
RS stock no. 188-3167
Mfr. Part No.4061 - 50x90
BrandRingfeder
R 1,079.63
Each
units
38 mm, 40 mm, 42 mm 90mm - 31.5mm 1650 nm, 1900 nm, 2150 nm - - -
RS stock no. 188-3179
Mfr. Part No.7012 - 22x47
BrandRingfeder
R 899.90
Each
units
- 47mm - 27.5mm - - - -