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. 188-3179
Mfr. Part No.7012 - 22x47
BrandRingfeder
R 899.90
Each
units
- 47mm - 27.5mm - - - -
RS stock no. 188-3201
Mfr. Part No.7012 - 90x130
BrandRingfeder
R 1,801.75
Each
units
- 130mm - 39.5mm - - - -
RS stock no. 188-3157
Mfr. Part No.4061 - 21x50
BrandRingfeder
R 567.14
Each
units
16 mm, 17 mm, 18 mm 50mm - 22.5mm 250 nm, 290 nm, 330 nm - - -
RS stock no. 477-6638
Mfr. Part No.ETP CLASSIC 20MM
BrandLenze
R 2,176.12
Each
units
45mm 20mm 28mm 42mm 125Nm Steel -30°C +85°C
RS stock no. 477-6874
Mfr. Part No.ETP EXPRESS 32MM
BrandLenze
R 2,670.55
Each
units
39mm 32mm 68.5mm 56mm 440Nm Steel -30°C +85°C
RS stock no. 188-3185
Mfr. Part No.7012 - 35x60
BrandRingfeder
R 959.83
Each
units
- 60mm - 27.5mm - - - -
RS stock no. 188-3198
Mfr. Part No.7012 - 80x120
BrandRingfeder
R 1,690.23
Each
units
- 120mm - 39.5mm - - - -
RS stock no. 188-3196
Mfr. Part No.7012 - 70x110
BrandRingfeder
R 1,643.19
Each
units
- 110mm - 39.5mm - - - -
RS stock no. 106-5536
Mfr. Part No.TLK110 16 X 24 mm
BrandTOLLOCK
R 404.74
Each
units
16mm 24mm 44mm 42mm 180Nm - -40°C +300°C
RS stock no. 188-3203
Mfr. Part No.7012 - 100x145
BrandRingfeder
R 2,236.67
Each
units
- 145mm - 47mm - - - -
RS stock no. 188-3190
Mfr. Part No.7012 - 48x80
BrandRingfeder
R 1,190.46
Each
units
- 80mm - 33.5mm - - - -
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. 477-6818
Mfr. Part No.ETP EXPRESS 20MM
BrandLenze
R 3,038.53
Each
units
24mm 20mm 51.5mm 44mm 110Nm Steel -30°C +85°C
RS stock no. 188-3195
Mfr. Part No.7012 - 65x95
BrandRingfeder
R 1,354.55
Each
units
- 95mm - 33.5mm - - - -
RS stock no. 106-5535
Mfr. Part No.TLK110 15 X 24 mm
BrandTOLLOCK
R 377.01
Each
units
15mm 24mm 44mm 42mm 170Nm - -40°C +300°C
RS stock no. 188-3183
Mfr. Part No.7012 - 30x55
BrandRingfeder
R 930.65
Each
units
- 55mm - 27.5mm - - - -
RS stock no. 477-7029
Mfr. Part No.TLK110 30X41
BrandLenze
R 570.88
Each
units
30mm 41mm 62mm 51mm 510Nm - -40°C +300°C
RS stock no. 188-3180
Mfr. Part No.7012 - 24x50
BrandRingfeder
R 929.08
Each
units
- 50mm - 27.5mm - - - -
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. 477-6694
Mfr. Part No.ETP CLASSIC 30MM
BrandLenze
R 2,622.25
Each
units
57mm 30mm 41mm 52mm 420Nm Steel -30°C +85°C