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. 488-8034
Mfr. Part No.R6-111 171
BrandLenze
MYR232.89
Each
units
11mm 18mm 30mm 29.5mm 25Nm Steel -30°C +85°C
RS Stock No. 477-6824
Mfr. Part No.ETP EXPRESS 22MM
BrandLenze
MYR724.16
Each
units
27mm 22mm 55.5mm 46mm 130Nm Steel -30°C +85°C
New
RS Stock No. 188-3185
Mfr. Part No.7012 - 35x60
BrandRingfeder
MYR315.70
Each
units
- 60mm - 27.5mm - - - -
New
RS Stock No. 188-3184
Mfr. Part No.7012 - 32x60
BrandRingfeder
MYR315.70
Each
units
- 60mm - 27.5mm - - - -
RS Stock No. 477-6997
Mfr. Part No.TLK110 20X28
BrandLenze
MYR130.30
Each
units
20mm 28mm 50mm 44mm 220Nm - -40°C +300°C
New
RS Stock No. 188-3158
Mfr. Part No.4061 - 24x50
BrandRingfeder
MYR186.33
Each
units
19 mm, 20 mm, 21 mm 50mm - 22.5mm 300 nm, 340 nm, 390 nm - - -
New
RS Stock No. 188-3191
Mfr. Part No.7012 - 50x80
BrandRingfeder
MYR386.97
Each
units
- 80mm - 33.5mm - - - -
New
RS Stock No. 188-3170
Mfr. Part No.4061 - 68x115
BrandRingfeder
MYR443.00
Each
units
50 mm, 55 mm, 60 mm 115mm - 34.5mm 2350 nm, 2850 nm, 3600 nm - - -
RS Stock No. 488-8062
Mfr. Part No.R6-212 786
BrandLenze
MYR276.08
Each
units
14mm 22mm 35mm 31.5mm 48Nm Steel -30°C +85°C
RS Stock No. 477-6852
Mfr. Part No.ETP EXPRESS 30MM
BrandLenze
MYR1,204.98
Each
units
36mm 30mm 64.5mm 54mm 380Nm Steel -30°C +85°C
New
RS Stock No. 188-3181
Mfr. Part No.7012 - 25x50
BrandRingfeder
MYR307.15
Each
units
- 50mm - 27.5mm - - - -
New
RS Stock No. 188-3189
Mfr. Part No.7012 - 45x75
BrandRingfeder
MYR382.44
Each
units
- 75mm - 33.5mm - - - -
RS Stock No. 477-6975
Mfr. Part No.TLK110 14X23
BrandLenze
MYR134.21
Each
units
14mm 23mm 38mm 30mm 68Nm - -40°C +300°C
New
RS Stock No. 188-3164
Mfr. Part No.4061 - 44x80
BrandRingfeder
MYR301.17
Each
units
32 mm, 35 mm, 36 mm 80mm - 30mm 1000 nm, 1250 nm, 1350 nm - - -
RS Stock No. 477-6789
Mfr. Part No.ETP EXPRESS 15MM
BrandLenze
MYR1,001.21
Each
units
18mm 15mm 46mm 39mm 46Nm Steel -30°C +85°C
New
RS Stock No. 188-3202
Mfr. Part No.7012 - 95x135
BrandRingfeder
MYR588.85
Each
units
- 135mm - 39.5mm - - - -
RS Stock No. 477-6751
Mfr. Part No.ETP CLASSIC 50MM
BrandLenze
MYR1,426.07
Each
units
83mm 50mm 65mm 82mm 1900Nm Steel -30°C +85°C
New
RS Stock No. 188-3157
Mfr. Part No.4061 - 21x50
BrandRingfeder
MYR186.33
Each
units
16 mm, 17 mm, 18 mm 50mm - 22.5mm 250 nm, 290 nm, 330 nm - - -
RS Stock No. 106-5535
Mfr. Part No.TLK110 15 X 24 mm
BrandTOLLOCK
MYR135.50
Each
units
15mm 24mm 44mm 42mm 170Nm - -40°C +300°C
New
RS Stock No. 188-3190
Mfr. Part No.7012 - 48x80
BrandRingfeder
MYR386.97
Each
units
- 80mm - 33.5mm - - - -
Related Products
Tollok manufactures highly engineered shaft locking devices for ...
Description:
Tollok manufactures highly engineered shaft locking devices for the power generation, process industries, and general industrial applications. For more than 35 years their products have been used to secure rotating shafts, manage torque transmission, and counteract shaft bending and vibration.These ...
Tollok manufactures highly engineered shaft locking devices for ...
Description:
Tollok manufactures highly engineered shaft locking devices for the power generation, process industries, and general industrial applications. For more than 35 years their products have been used to secure rotating shafts, manage torque transmission, and counteract shaft bending and vibration.These ...
Identical in design and function to the traditional ...
Description:
Identical in design and function to the traditional 7012 device, this unit is made of stainless steel for applications requiring rust free installation. Torque capacity is somewhat reduced due to the nature of stainless steel.
Unique hydraulic shaft to hub locking bush offering ...
Description:
Unique hydraulic shaft to hub locking bush offering infinite radial and axial adjustment. Designed for frequent operations for very accurate mounting of gears, pulleys, sprockets etc. High concentricity and self-centeringFast, easy locking and un-locking with few pressure screwsAutomatic release when ...