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. 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. 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. 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. 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
New
RS stock no. 188-3188
Mfr. Part No.7012 - 42x75
BrandRingfeder
R 1,175.05
Each
units
- 75mm - 33.5mm - - - -
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. 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. 477-6717
Mfr. Part No.ETP CLASSIC 35MM
BrandLenze
R 2,961.69
Each
units
63mm 35mm 47mm 60mm 650Nm Steel -30°C +85°C
New
RS stock no. 188-3175
Mfr. Part No.4061 - 90x155
BrandRingfeder
R 2,447.95
Each
units
65 mm, 70 mm, 75 mm 155mm - 44.5mm 6000 nm, 7550 nm, 9150 nm - - -
RS stock no. 477-6880
Mfr. Part No.ETP EXPRESS 35MM
BrandLenze
R 4,050.73
Each
units
42mm 72mm 35mm 59mm 640Nm Steel -30°C +85°C
New
RS stock no. 188-3170
Mfr. Part No.4061 - 68x115
BrandRingfeder
R 1,409.32
Each
units
50 mm, 55 mm, 60 mm 115mm - 34.5mm 2350 nm, 2850 nm, 3600 nm - - -
New
RS stock no. 188-3153
Mfr. Part No.4061 - 14x37
BrandRingfeder
R 520.84
Each
units
10 mm, 11 mm, 12 mm 37mm - 14.8mm 37.5 nm, 46 nm, 60 nm - - -
New
RS stock no. 188-3176
Mfr. Part No.4061 - 95x170
BrandRingfeder
R 2,878.16
Each
units
65 mm, 70 mm, 75 mm 170mm - 52.5mm 6700 nm, 8450 nm, 10200 nm - - -
New
RS stock no. 188-3156
Mfr. Part No.4061 - 20x46
BrandRingfeder
R 520.09
Each
units
15 mm, 16 mm, 17 mm 46mm - 21mm 140 nm, 170 nm, 200 nm - - -
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
New
RS stock no. 188-3189
Mfr. Part No.7012 - 45x75
BrandRingfeder
R 1,173.10
Each
units
- 75mm - 33.5mm - - - -