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. 188-3184
Mfr. Part No.7012 - 32x60
BrandRingfeder
MYR330.65
Each
units
- 60mm - 27.5mm - - - -
RS Stock No. 188-3188
Mfr. Part No.7012 - 42x75
BrandRingfeder
MYR400.55
Each
units
- 75mm - 33.5mm - - - -
RS Stock No. 188-3185
Mfr. Part No.7012 - 35x60
BrandRingfeder
MYR330.65
Each
units
- 60mm - 27.5mm - - - -
RS Stock No. 477-6997
Mfr. Part No.TLK110 20X28
BrandLenze
MYR133.09
Each
units
20mm 28mm 50mm 44mm 220Nm - -40°C +300°C
RS Stock No. 188-3203
Mfr. Part No.7012 - 100x145
BrandRingfeder
MYR737.40
Each
units
- 145mm - 47mm - - - -
RS Stock No. 188-3196
Mfr. Part No.7012 - 70x110
BrandRingfeder
MYR549.57
Each
units
- 110mm - 39.5mm - - - -
RS Stock No. 477-6694
Mfr. Part No.ETP CLASSIC 30MM
BrandLenze
MYR825.10
Each
units
57mm 30mm 41mm 52mm 420Nm Steel -30°C +85°C
RS Stock No. 188-3192
Mfr. Part No.7012 - 55x85
BrandRingfeder
MYR381.27
Each
units
- 85mm - 33.5mm - - - -
RS Stock No. 188-3201
Mfr. Part No.7012 - 90x130
BrandRingfeder
MYR598.73
Each
units
- 130mm - 39.5mm - - - -
RS Stock No. 188-3190
Mfr. Part No.7012 - 48x80
BrandRingfeder
MYR364.76
Each
units
- 80mm - 33.5mm - - - -
RS Stock No. 188-3182
Mfr. Part No.7012 - 28x55
BrandRingfeder
MYR321.64
Each
units
- 55mm - 27.5mm - - - -
RS Stock No. 188-3158
Mfr. Part No.4061 - 24x50
BrandRingfeder
MYR200.85
Each
units
19 mm, 20 mm, 21 mm 50mm - 22.5mm 300 nm, 340 nm, 390 nm - - -
RS Stock No. 106-5534
Mfr. Part No.TLK110 6 x 14 mm
BrandTOLLOCK
MYR119.36
Each
units
6mm 14mm 25mm 24mm 16Nm - -40°C +300°C
RS Stock No. 188-3194
Mfr. Part No.7012 - 60x90
BrandRingfeder
MYR372.27
Each
units
- 90mm - 33.5mm - - - -
RS Stock No. 188-3183
Mfr. Part No.7012 - 30x55
BrandRingfeder
MYR289.48
Each
units
- 55mm - 27.5mm - - - -
RS Stock No. 188-3157
Mfr. Part No.4061 - 21x50
BrandRingfeder
MYR197.16
Each
units
16 mm, 17 mm, 18 mm 50mm - 22.5mm 250 nm, 290 nm, 330 nm - - -
RS Stock No. 488-8062
Mfr. Part No.R6-212 786
BrandLenze
MYR282.15
Each
units
14mm 22mm 35mm 31.5mm 48Nm Steel -30°C +85°C
RS Stock No. 188-3153
Mfr. Part No.4061 - 14x37
BrandRingfeder
MYR181.11
Each
units
10 mm, 11 mm, 12 mm 37mm - 14.8mm 37.5 nm, 46 nm, 60 nm - - -
RS Stock No. 188-3176
Mfr. Part No.4061 - 95x170
BrandRingfeder
MYR917.29
Each
units
65 mm, 70 mm, 75 mm 170mm - 52.5mm 6700 nm, 8450 nm, 10200 nm - - -
RS Stock No. 188-3169
Mfr. Part No.4061 - 62x110
BrandRingfeder
MYR422.88
Each
units
48 mm, 50 mm, 52 mm 110mm - 34.5mm 3000 nm, 3300 nm, 3500 nm - - -