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. 477-6701
Mfr. Part No.ETP CLASSIC 32MM
BrandLenze
MYR691.63
Each
units
60mm 32mm 43mm 57mm 420Nm Steel -30°C +85°C
RS Stock No. 477-6739
Mfr. Part No.ETP CLASSIC 40MM
BrandLenze
MYR1,174.57
Each
units
70mm 40mm 53mm 68mm 940Nm Steel -30°C +85°C
RS Stock No. 106-5536
Mfr. Part No.TLK110 16 X 24 mm
BrandTOLLOCK
MYR138.48
Each
units
16mm 24mm 44mm 42mm 180Nm - -40°C +300°C
RS Stock No. 477-6846
Mfr. Part No.ETP EXPRESS 25MM
BrandLenze
MYR1,121.25
Each
units
30mm 25mm 58mm 49mm 230Nm Steel -30°C +85°C
RS Stock No. 188-3157
Mfr. Part No.4061 - 21x50
BrandRingfeder
MYR197.16
Each
units
16 mm, 17 mm, 18 mm 50mm - 22.5mm 250 nm, 290 nm, 330 nm - - -
RS Stock No. 477-6666
Mfr. Part No.ETP CLASSIC 25MM
BrandLenze
MYR813.56
Each
units
34mm - 49mm 43mm 250Nm Steel -30°C +85°C
RS Stock No. 188-3197
Mfr. Part No.7012 - 75x115
BrandRingfeder
MYR557.70
Each
units
- 115mm - 39.5mm - - - -
RS Stock No. 477-6997
Mfr. Part No.TLK110 20X28
BrandLenze
MYR147.88
Each
units
20mm 28mm 50mm 44mm 220Nm - -40°C +300°C
RS Stock No. 488-8006
Mfr. Part No.R6-111 139
BrandLenze
MYR243.46
Each
units
6mm 14mm 18mm 22mm 5Nm Steel -30°C +85°C
RS Stock No. 488-8028
Mfr. Part No.R6-56 441
BrandLenze
MYR269.36
Each
units
10mm 16mm 28mm 28mm 23Nm Steel -30°C +85°C
RS Stock No. 188-3163
Mfr. Part No.4061 - 40x72
BrandRingfeder
MYR293.67
Each
units
30 mm, 31 mm, 32 mm 72mm - 28.5mm 900 nm, 910 nm, 990 nm - - -
RS Stock No. 188-3164
Mfr. Part No.4061 - 44x80
BrandRingfeder
MYR318.68
Each
units
32 mm, 35 mm, 36 mm 80mm - 30mm 1000 nm, 1250 nm, 1350 nm - - -
RS Stock No. 188-3195
Mfr. Part No.7012 - 65x95
BrandRingfeder
MYR460.38
Each
units
- 95mm - 33.5mm - - - -
RS Stock No. 477-6824
Mfr. Part No.ETP EXPRESS 22MM
BrandLenze
MYR774.47
Each
units
27mm 22mm 55.5mm 46mm 130Nm Steel -30°C +85°C
RS Stock No. 188-3187
Mfr. Part No.7012 - 40x65
BrandRingfeder
MYR341.72
Each
units
- 65mm - 27.5mm - - - -
RS Stock No. 188-3185
Mfr. Part No.7012 - 35x60
BrandRingfeder
MYR330.65
Each
units
- 60mm - 27.5mm - - - -
RS Stock No. 188-3199
Mfr. Part No.7012 - 85x125
BrandRingfeder
MYR566.38
Each
units
- 125mm - 39.5mm - - - -
RS Stock No. 188-3167
Mfr. Part No.4061 - 50x90
BrandRingfeder
MYR364.59
Each
units
38 mm, 40 mm, 42 mm 90mm - 31.5mm 1650 nm, 1900 nm, 2150 nm - - -
RS Stock No. 477-6818
Mfr. Part No.ETP EXPRESS 20MM
BrandLenze
MYR1,075.02
Each
units
24mm 20mm 51.5mm 44mm 110Nm Steel -30°C +85°C
RS Stock No. 477-6650
Mfr. Part No.ETP CLASSIC 24MM
BrandLenze
MYR587.08
Each
units
49mm 24mm 34mm 45mm 200Nm Steel -30°C +85°C