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. 188-3178
Mfr. Part No.7012 - 20x47
BrandRingfeder
€62.57
Each
units
- 47mm - 27.5mm - - - -
RS Stock No. 188-3172
Mfr. Part No.4061 - 75x138
BrandRingfeder
€105.43
Each
units
55 mm, 60 mm, 65mm 138mm - 37.8mm 3300 Nm, 4150 Nm, 5100Nm - - -
RS Stock No. 188-3177
Mfr. Part No.7012 - 19x47
BrandRingfeder
€62.57
Each
units
- 47mm - 27.5mm - - - -
RS Stock No. 188-3203
Mfr. Part No.7012 - 100x145
BrandRingfeder
€148.07
Each
units
- 145mm - 47mm - - - -
RS Stock No. 188-3183
Mfr. Part No.7012 - 30x55
BrandRingfeder
€64.60
Each
units
- 55mm - 27.5mm - - - -
RS Stock No. 188-3202
Mfr. Part No.7012 - 95x135
BrandRingfeder
€123.76
Each
units
- 135mm - 39.5mm - - - -
RS Stock No. 188-3176
Mfr. Part No.4061 - 95x170
BrandRingfeder
€182.19
Each
units
65 mm, 70 mm, 75mm 170mm - 52.5mm 6700 Nm, 8450 Nm, 10200Nm - - -
RS Stock No. 2509172801
Mfr. Part No.SL-110B
€3.61
Each
units
- - - - - - - -