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 3,351.85
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 4,521.55
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 370.80
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 688.58
Each
units
40mm 53mm 75mm 56mm 900Nm - -40°C +300°C
RS stock no. 477-6852
Mfr. Part No.ETP EXPRESS 30MM
BrandLenze
R 3,604.70
Each
units
36mm 30mm 64.5mm 54mm 380Nm Steel -30°C +85°C
RS stock no. 488-8056
Mfr. Part No.R6-111 18X
BrandLenze
R 843.64
Each
units
12mm 18mm 30mm 29.5mm 27Nm Steel -30°C +85°C
RS stock no. 477-6919
Mfr. Part No.ETP EXPRESS 45MM
BrandLenze
R 3,909.45
Each
units
54mm 45mm 93mm 78mm 1400Nm Steel -30°C +85°C
RS stock no. 488-8012
Mfr. Part No.R6-111 147
BrandLenze
R 719.32
Each
units
8mm 15mm 27mm 25.5mm 17Nm Steel -30°C +85°C
RS stock no. 188-3158
Mfr. Part No.4061 - 24x50
BrandRingfeder
R 569.57
Each
units
19 mm, 20 mm, 21 mm 50mm - 22.5mm 300 nm, 340 nm, 390 nm - - -
RS stock no. 477-7007
Mfr. Part No.TLK110 25X34
BrandLenze
R 524.56
Each
units
25mm 34mm 56mm 51mm 280Nm - -40°C +300°C
RS stock no. 477-6717
Mfr. Part No.ETP CLASSIC 35MM
BrandLenze
R 2,236.26
Each
units
63mm 35mm 47mm 60mm 650Nm Steel -30°C +85°C
RS stock no. 188-3168
Mfr. Part No.4061 - 55x100
BrandRingfeder
R 1,223.92
Each
units
42 mm, 45 mm, 48 mm 100mm - 34.5mm 1600 nm, 1950 nm, 2300 nm - - -
RS stock no. 188-3189
Mfr. Part No.7012 - 45x75
BrandRingfeder
R 1,177.30
Each
units
- 75mm - 33.5mm - - - -
RS stock no. 477-6874
Mfr. Part No.ETP EXPRESS 32MM
BrandLenze
R 2,680.30
Each
units
39mm 32mm 68.5mm 56mm 440Nm Steel -30°C +85°C
RS stock no. 477-6931
Mfr. Part No.TLK110 8X15
BrandLenze
R 359.01
Each
units
8mm 15mm 27mm 29mm 29Nm - -40°C +300°C
RS stock no. 188-3166
Mfr. Part No.4061 - 48x80
BrandRingfeder
R 937.32
Each
units
36 mm, 38 mm, 40 mm 80mm - 30mm 1150 nm, 1350 nm, 1550 nm - - -
RS stock no. 477-7013
Mfr. Part No.TLK110 28X39
BrandLenze
R 531.42
Each
units
28mm 39mm 61mm 51mm 465Nm - -40°C +300°C
RS stock no. 188-3183
Mfr. Part No.7012 - 30x55
BrandRingfeder
R 934.03
Each
units
- 55mm - 27.5mm - - - -
RS stock no. 188-3187
Mfr. Part No.7012 - 40x65
BrandRingfeder
R 995.56
Each
units
- 65mm - 27.5mm - - - -
RS stock no. 188-3174
Mfr. Part No.4061 - 85x155
BrandRingfeder
R 2,252.87
Each
units
60 mm, 65 mm, 70 mm 155mm - 45.8mm 6050 nm, 7250 nm, 8500 nm - - -