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. 477-6925
Mfr. Part No.ETP EXPRESS 50MM
BrandLenze
MYR1,338.22
Each
units
60mm 50mm 98.5mm 80mm 1900Nm Steel -30°C +85°C
New
RS Stock No. 188-3198
Mfr. Part No.7012 - 80x120
BrandRingfeder
MYR538.48
Each
units
- 120mm - 39.5mm - - - -
RS Stock No. 477-6846
Mfr. Part No.ETP EXPRESS 25MM
BrandLenze
MYR1,071.10
Each
units
30mm 25mm 58mm 49mm 230Nm 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. 477-7013
Mfr. Part No.TLK110 28X39
BrandLenze
MYR167.46
Each
units
28mm 39mm 61mm 51mm 465Nm - -40°C +300°C
New
RS Stock No. 188-3197
Mfr. Part No.7012 - 75x115
BrandRingfeder
MYR532.51
Each
units
- 115mm - 39.5mm - - - -
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 - - -
New
RS Stock No. 188-3160
Mfr. Part No.4061 - 30x52
BrandRingfeder
MYR213.31
Each
units
24 mm, 25 mm, 26 mm 52mm - 26mm 450 nm, 500 nm, 560 nm - - -
RS Stock No. 106-5538
Mfr. Part No.TLK110 40 X 53 mm
BrandTOLLOCK
MYR188.75
Each
units
40mm 53mm 75mm 56mm 900Nm - -40°C +300°C
New
RS Stock No. 188-3163
Mfr. Part No.4061 - 40x72
BrandRingfeder
MYR277.48
Each
units
30 mm, 31 mm, 32 mm 72mm - 28.5mm 900 nm, 910 nm, 990 nm - - -
New
RS Stock No. 188-3190
Mfr. Part No.7012 - 48x80
BrandRingfeder
MYR386.97
Each
units
- 80mm - 33.5mm - - - -
New
RS Stock No. 188-3161
Mfr. Part No.4061 - 36x72
BrandRingfeder
MYR232.99
Each
units
28 mm, 30 mm, 31 mm 72mm - 27.5mm 730 nm, 860 nm, 890 nm - - -
New
RS Stock No. 188-3187
Mfr. Part No.7012 - 40x65
BrandRingfeder
MYR326.30
Each
units
- 65mm - 27.5mm - - - -
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 - - -
RS Stock No. 477-6818
Mfr. Part No.ETP EXPRESS 20MM
BrandLenze
MYR849.74
Each
units
24mm 20mm 51.5mm 44mm 110Nm Steel -30°C +85°C
RS Stock No. 106-5534
Mfr. Part No.TLK110 6 x 14 mm
BrandTOLLOCK
MYR107.81
Each
units
6mm 14mm 25mm 24mm 16Nm - -40°C +300°C
New
RS Stock No. 188-3181
Mfr. Part No.7012 - 25x50
BrandRingfeder
MYR307.15
Each
units
- 50mm - 27.5mm - - - -
RS Stock No. 106-5537
Mfr. Part No.TLK110 35 X 47 mm
BrandTOLLOCK
MYR210.71
Each
units
35mm 47mm 69mm 56mm 790Nm - -40°C +300°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
RS Stock No. 106-5539
Mfr. Part No.TLK110 50 X 65 mm
BrandTOLLOCK
MYR275.85
Each
units
50mm 65mm 92mm 78mm 2600Nm - -40°C +300°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 ...
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 ...