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
New
RS Stock No. 188-3194
Mfr. Part No.7012 - 60x90
BrandRingfeder
MYR394.90
Each
units
- 90mm - 33.5mm - - - -
New
RS Stock No. 188-3180
Mfr. Part No.7012 - 24x50
BrandRingfeder
MYR307.15
Each
units
- 50mm - 27.5mm - - - -
RS Stock No. 488-8012
Mfr. Part No.R6-111 147
BrandLenze
MYR208.89
Each
units
8mm 15mm 27mm 25.5mm 17Nm Steel -30°C +85°C
New
RS Stock No. 188-3166
Mfr. Part No.4061 - 48x80
BrandRingfeder
MYR301.17
Each
units
36 mm, 38 mm, 40 mm 80mm - 30mm 1150 nm, 1350 nm, 1550 nm - - -
New
RS Stock No. 188-3198
Mfr. Part No.7012 - 80x120
BrandRingfeder
MYR538.48
Each
units
- 120mm - 39.5mm - - - -
RS Stock No. 477-6903
Mfr. Part No.ETP EXPRESS 40MM
BrandLenze
MYR1,507.03
Each
units
48mm 40mm 86.5mm 75mm 1100Nm Steel -30°C +85°C
New
RS Stock No. 188-3177
Mfr. Part No.7012 - 19x47
BrandRingfeder
MYR297.88
Each
units
- 47mm - 27.5mm - - - -
New
RS Stock No. 188-3168
Mfr. Part No.4061 - 55x100
BrandRingfeder
MYR385.53
Each
units
42 mm, 45 mm, 48 mm 100mm - 34.5mm 1600 nm, 1950 nm, 2300 nm - - -
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 - - -
RS Stock No. 477-6931
Mfr. Part No.TLK110 8X15
BrandLenze
MYR124.90
Each
units
8mm 15mm 27mm 29mm 29Nm - -40°C +300°C
RS Stock No. 477-6650
Mfr. Part No.ETP CLASSIC 24MM
BrandLenze
MYR544.79
Each
units
49mm 24mm 34mm 45mm 200Nm Steel -30°C +85°C
New
RS Stock No. 188-3155
Mfr. Part No.4061 - 18x44
BrandRingfeder
MYR171.08
Each
units
14 mm, 15 mm, 16 mm 44mm - 18.5mm 110 nm, 130 nm, 160 nm - - -
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
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
New
RS Stock No. 188-3174
Mfr. Part No.4061 - 85x155
BrandRingfeder
MYR681.65
Each
units
60 mm, 65 mm, 70 mm 155mm - 45.8mm 6050 nm, 7250 nm, 8500 nm - - -
New
RS Stock No. 188-3167
Mfr. Part No.4061 - 50x90
BrandRingfeder
MYR344.54
Each
units
38 mm, 40 mm, 42 mm 90mm - 31.5mm 1650 nm, 1900 nm, 2150 nm - - -
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
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. 188-3182
Mfr. Part No.7012 - 28x55
BrandRingfeder
MYR307.15
Each
units
- 55mm - 27.5mm - - - -
New
RS Stock No. 188-3197
Mfr. Part No.7012 - 75x115
BrandRingfeder
MYR532.51
Each
units
- 115mm - 39.5mm - - - -
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.
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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 ...