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. 477-6739
Mfr. Part No.ETP CLASSIC 40MM
BrandLenze
R 3,339.65
Each
units
70mm 40mm 53mm 68mm 940Nm Steel -30°C +85°C
RS stock no. 477-6903
Mfr. Part No.ETP EXPRESS 40MM
BrandLenze
R 4,505.14
Each
units
48mm 40mm 86.5mm 75mm 1100Nm Steel -30°C +85°C
RS stock no. 477-6953
Mfr. Part No.TLK110 12X18
BrandLenze
R 369.45
Each
units
12mm 18mm 32mm 30mm 58Nm - -40°C +300°C
RS stock no. 106-5538
Mfr. Part No.TLK110 40 X 53 mm
BrandTOLLOCK
R 686.20
Each
units
40mm 53mm 75mm 56mm 900Nm - -40°C +300°C
RS stock no. 477-6852
Mfr. Part No.ETP EXPRESS 30MM
BrandLenze
R 3,591.53
Each
units
36mm 30mm 64.5mm 54mm 380Nm Steel -30°C +85°C
RS stock no. 488-8012
Mfr. Part No.R6-111 147
BrandLenze
R 716.68
Each
units
8mm 15mm 27mm 25.5mm 17Nm Steel -30°C +85°C
RS stock no. 477-6919
Mfr. Part No.ETP EXPRESS 45MM
BrandLenze
R 3,895.31
Each
units
54mm 45mm 93mm 78mm 1400Nm Steel -30°C +85°C
RS stock no. 488-8056
Mfr. Part No.R6-111 18X
BrandLenze
R 840.55
Each
units
12mm 18mm 30mm 29.5mm 27Nm Steel -30°C +85°C
RS stock no. 188-3184
Mfr. Part No.7012 - 32x60
BrandRingfeder
R 959.45
Each
units
- 60mm - 27.5mm - - - -
RS stock no. 188-3164
Mfr. Part No.4061 - 44x80
BrandRingfeder
R 937.03
Each
units
32 mm, 35 mm, 36 mm 80mm - 30mm 1000 nm, 1250 nm, 1350 nm - - -
RS stock no. 188-3187
Mfr. Part No.7012 - 40x65
BrandRingfeder
R 991.98
Each
units
- 65mm - 27.5mm - - - -
RS stock no. 188-3167
Mfr. Part No.4061 - 50x90
BrandRingfeder
R 1,079.63
Each
units
38 mm, 40 mm, 42 mm 90mm - 31.5mm 1650 nm, 1900 nm, 2150 nm - - -
RS stock no. 477-6947
Mfr. Part No.TLK110 10X16
BrandLenze
R 368.95
Each
units
10mm 16mm 28mm 30mm 49Nm - -40°C +300°C
RS stock no. 188-3185
Mfr. Part No.7012 - 35x60
BrandRingfeder
R 959.83
Each
units
- 60mm - 27.5mm - - - -
RS stock no. 188-3188
Mfr. Part No.7012 - 42x75
BrandRingfeder
R 1,175.05
Each
units
- 75mm - 33.5mm - - - -
RS stock no. 188-3194
Mfr. Part No.7012 - 60x90
BrandRingfeder
R 1,218.69
Each
units
- 90mm - 33.5mm - - - -
RS stock no. 188-3173
Mfr. Part No.4061 - 80x145
BrandRingfeder
R 1,992.47
Each
units
60 mm, 65 mm, 70 mm 145mm - 37.8mm 4000 nm, 4900 nm, 5750 nm - - -
RS stock no. 477-7007
Mfr. Part No.TLK110 25X34
BrandLenze
R 522.71
Each
units
25mm 34mm 56mm 51mm 280Nm - -40°C +300°C
RS stock no. 188-3162
Mfr. Part No.4061 - 38x72
BrandRingfeder
R 796.89
Each
units
29 mm, 30 mm, 31 mm 72mm - 30mm 890 nm, 970 nm, 980 nm - - -
RS stock no. 188-3196
Mfr. Part No.7012 - 70x110
BrandRingfeder
R 1,643.19
Each
units
- 110mm - 39.5mm - - - -