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. 477-6874
Mfr. Part No.ETP EXPRESS 32MM
BrandLenze
MYR882.79
Each
units
39mm 32mm 68.5mm 56mm 440Nm Steel -30°C +85°C
RS Stock No. 477-6947
Mfr. Part No.TLK110 10X16
BrandLenze
MYR106.84
Each
units
10mm 16mm 28mm 30mm 49Nm - -40°C +300°C
RS Stock No. 477-7029
Mfr. Part No.TLK110 30X41
BrandLenze
MYR169.94
Each
units
30mm 41mm 62mm 51mm 510Nm - -40°C +300°C
RS Stock No. 477-6767
Mfr. Part No.ETP CLASSIC 45MM
BrandLenze
MYR688.72
Each
units
77mm 45mm 59mm 75mm 1290Nm Steel -30°C +85°C
New
RS Stock No. 188-3153
Mfr. Part No.4061 - 14x37
BrandRingfeder
MYR171.08
Each
units
10 mm, 11 mm, 12 mm 37mm - 14.8mm 37.5 nm, 46 nm, 60 nm - - -
RS Stock No. 488-8006
Mfr. Part No.R6-111 139
BrandLenze
MYR240.73
Each
units
6mm 14mm 18mm 22mm 5Nm Steel -30°C +85°C
RS Stock No. 477-6638
Mfr. Part No.ETP CLASSIC 20MM
BrandLenze
MYR760.00
Each
units
45mm 20mm 28mm 42mm 125Nm Steel -30°C +85°C
RS Stock No. 477-6701
Mfr. Part No.ETP CLASSIC 32MM
BrandLenze
MYR642.24
Each
units
60mm 32mm 43mm 57mm 420Nm Steel -30°C +85°C
RS Stock No. 488-8056
Mfr. Part No.R6-111 18X
BrandLenze
MYR297.07
Each
units
12mm 18mm 30mm 29.5mm 27Nm Steel -30°C +85°C
New
RS Stock No. 188-3162
Mfr. Part No.4061 - 38x72
BrandRingfeder
MYR256.68
Each
units
29 mm, 30 mm, 31 mm 72mm - 30mm 890 nm, 970 nm, 980 nm - - -
New
RS Stock No. 188-3175
Mfr. Part No.4061 - 90x155
BrandRingfeder
MYR749.74
Each
units
65 mm, 70 mm, 75 mm 155mm - 44.5mm 6000 nm, 7550 nm, 9150 nm - - -
New
RS Stock No. 188-3183
Mfr. Part No.7012 - 30x55
BrandRingfeder
MYR307.15
Each
units
- 55mm - 27.5mm - - - -
RS Stock No. 477-7013
Mfr. Part No.TLK110 28X39
BrandLenze
MYR167.46
Each
units
28mm 39mm 61mm 51mm 465Nm - -40°C +300°C
RS Stock No. 477-6919
Mfr. Part No.ETP EXPRESS 45MM
BrandLenze
MYR1,288.75
Each
units
54mm 45mm 93mm 78mm 1400Nm Steel -30°C +85°C
New
RS Stock No. 188-3196
Mfr. Part No.7012 - 70x110
BrandRingfeder
MYR524.68
Each
units
- 110mm - 39.5mm - - - -
New
RS Stock No. 188-3191
Mfr. Part No.7012 - 50x80
BrandRingfeder
MYR386.97
Each
units
- 80mm - 33.5mm - - - -
RS Stock No. 477-6717
Mfr. Part No.ETP CLASSIC 35MM
BrandLenze
MYR1,034.95
Each
units
63mm 35mm 47mm 60mm 650Nm Steel -30°C +85°C
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 - - -
New
RS Stock No. 188-3154
Mfr. Part No.4061 - 16x41
BrandRingfeder
MYR171.08
Each
units
12 mm, 13 mm, 14 mm 41mm - 18.5mm 90 nm, 110 nm, 130 nm - - -
RS Stock No. 477-6666
Mfr. Part No.ETP CLASSIC 25MM
BrandLenze
MYR804.46
Each
units
34mm - 49mm 43mm 250Nm Steel -30°C +85°C
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 ...
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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.
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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 ...