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. 477-6616
Mfr. Part No.ETP CLASSIC 15MM
BrandLenze
€148.46
Each
units
38mm 15mm 23mm 35mm 55Nm Steel -30°C +85°C
RS Stock No. 477-6903
Mfr. Part No.ETP EXPRESS 40MM
BrandLenze
€314.00
Each
units
48mm 40mm 86.5mm 75mm 1100Nm Steel -30°C +85°C
RS Stock No. 477-6975
Mfr. Part No.TLK110 14X23
BrandLenze
€25.55
Each
units
14mm 23mm 38mm 30mm 68Nm - -40°C +300°C
RS Stock No. 488-8006
Mfr. Part No.R6-111 139
BrandLenze
€48.37
Each
units
6mm 14mm 18mm 22mm 5Nm Steel -30°C +85°C
RS Stock No. 477-6717
Mfr. Part No.ETP CLASSIC 35MM
BrandLenze
€207.36
Each
units
63mm 35mm 47mm 60mm 650Nm Steel -30°C +85°C
RS Stock No. 477-6789
Mfr. Part No.ETP EXPRESS 15MM
BrandLenze
€187.42
Each
units
18mm 15mm 46mm 39mm 46Nm Steel -30°C +85°C
RS Stock No. 188-3164
Mfr. Part No.4061 - 44x80
BrandRingfeder
€63.32
Each
units
32 mm, 35 mm, 36mm 80mm - 30mm 1000 Nm, 1250 Nm, 1350Nm - - -
RS Stock No. 477-6874
Mfr. Part No.ETP EXPRESS 32MM
BrandLenze
€213.99
Each
units
39mm 32mm 68.5mm 56mm 440Nm Steel -30°C +85°C
RS Stock No. 477-6880
Mfr. Part No.ETP EXPRESS 35MM
BrandLenze
€283.87
Each
units
42mm 72mm 35mm 59mm 640Nm Steel -30°C +85°C
RS Stock No. 188-3161
Mfr. Part No.4061 - 36x72
BrandRingfeder
€49.04
Each
units
28 mm, 30 mm, 31mm 72mm - 27.5mm 730 Nm, 860 Nm, 890Nm - - -
RS Stock No. 477-7029
Mfr. Part No.TLK110 30X41
BrandLenze
€38.20
Each
units
30mm 41mm 62mm 51mm 510Nm - -40°C +300°C
RS Stock No. 106-5536
Mfr. Part No.TLK110 16 X 24 mm
BrandTOLLOCK
€27.80
Each
units
16mm 24mm 44mm 42mm 180Nm - -40°C +300°C
RS Stock No. 188-3186
Mfr. Part No.7012 - 38x65
BrandRingfeder
€68.65
Each
units
- 65mm - 27.5mm - - - -
RS Stock No. 477-6701
Mfr. Part No.ETP CLASSIC 32MM
BrandLenze
€137.39
Each
units
60mm 32mm 43mm 57mm 420Nm Steel -30°C +85°C
RS Stock No. 188-3154
Mfr. Part No.4061 - 16x41
BrandRingfeder
€35.93
Each
units
12 mm, 13 mm, 14mm 41mm - 18.5mm 90 Nm, 110 Nm, 130Nm - - -
RS Stock No. 188-3166
Mfr. Part No.4061 - 48x80
BrandRingfeder
€63.32
Each
units
36 mm, 38 mm, 40mm 80mm - 30mm 1150 Nm, 1350 Nm, 1550Nm - - -
RS Stock No. 188-3181
Mfr. Part No.7012 - 25x50
BrandRingfeder
€64.60
Each
units
- 50mm - 27.5mm - - - -
RS Stock No. 188-3174
Mfr. Part No.4061 - 85x155
BrandRingfeder
€143.27
Each
units
60 mm, 65 mm, 70mm 155mm - 45.8mm 6050 Nm, 7250 Nm, 8500Nm - - -
RS Stock No. 188-3153
Mfr. Part No.4061 - 14x37
BrandRingfeder
€35.93
Each
units
10 mm, 11 mm, 12mm 37mm - 14.8mm 37.5 Nm, 46 Nm, 60Nm - - -
RS Stock No. 488-8028
Mfr. Part No.R6-56 441
BrandLenze
€55.81
Each
units
10mm 16mm 28mm 28mm 23Nm Steel -30°C +85°C