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. 188-3156
Mfr. Part No.4061 - 20x46
BrandRingfeder
MYR181.11
Each
units
15 mm, 16 mm, 17 mm 46mm - 21mm 140 nm, 170 nm, 200 nm - - -
RS Stock No. 188-3166
Mfr. Part No.4061 - 48x80
BrandRingfeder
MYR318.68
Each
units
36 mm, 38 mm, 40 mm 80mm - 30mm 1150 nm, 1350 nm, 1550 nm - - -
RS Stock No. 477-6880
Mfr. Part No.ETP EXPRESS 35MM
BrandLenze
MYR1,286.06
Each
units
42mm 72mm 35mm 59mm 640Nm Steel -30°C +85°C
RS Stock No. 477-6666
Mfr. Part No.ETP CLASSIC 25MM
BrandLenze
MYR724.60
Each
units
34mm - 49mm 43mm 250Nm Steel -30°C +85°C
RS Stock No. 477-6919
Mfr. Part No.ETP EXPRESS 45MM
BrandLenze
MYR1,387.12
Each
units
54mm 45mm 93mm 78mm 1400Nm Steel -30°C +85°C
RS Stock No. 188-3161
Mfr. Part No.4061 - 36x72
BrandRingfeder
MYR251.25
Each
units
28 mm, 30 mm, 31 mm 72mm - 27.5mm 730 nm, 860 nm, 890 nm - - -
RS Stock No. 488-8012
Mfr. Part No.R6-111 147
BrandLenze
MYR226.21
Each
units
8mm 15mm 27mm 25.5mm 17Nm Steel -30°C +85°C
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. 477-7013
Mfr. Part No.TLK110 28X39
BrandLenze
MYR175.76
Each
units
28mm 39mm 61mm 51mm 465Nm - -40°C +300°C
RS Stock No. 477-6975
Mfr. Part No.TLK110 14X23
BrandLenze
MYR127.34
Each
units
14mm 23mm 38mm 30mm 68Nm - -40°C +300°C
RS Stock No. 188-3174
Mfr. Part No.4061 - 85x155
BrandRingfeder
MYR721.36
Each
units
60 mm, 65 mm, 70 mm 155mm - 45.8mm 6050 nm, 7250 nm, 8500 nm - - -
RS Stock No. 477-6953
Mfr. Part No.TLK110 12X18
BrandLenze
MYR115.69
Each
units
12mm 18mm 32mm 30mm 58Nm - -40°C +300°C
RS Stock No. 477-6846
Mfr. Part No.ETP EXPRESS 25MM
BrandLenze
MYR998.64
Each
units
30mm 25mm 58mm 49mm 230Nm Steel -30°C +85°C
RS Stock No. 188-3178
Mfr. Part No.7012 - 20x47
BrandRingfeder
MYR311.90
Each
units
- 47mm - 27.5mm - - - -
RS Stock No. 477-7007
Mfr. Part No.TLK110 25X34
BrandLenze
MYR158.61
Each
units
25mm 34mm 56mm 51mm 280Nm - -40°C +300°C
RS Stock No. 477-6638
Mfr. Part No.ETP CLASSIC 20MM
BrandLenze
MYR685.76
Each
units
45mm 20mm 28mm 42mm 125Nm 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. 188-3168
Mfr. Part No.4061 - 55x100
BrandRingfeder
MYR408.06
Each
units
42 mm, 45 mm, 48 mm 100mm - 34.5mm 1600 nm, 1950 nm, 2300 nm - - -
RS Stock No. 188-3197
Mfr. Part No.7012 - 75x115
BrandRingfeder
MYR501.93
Each
units
- 115mm - 39.5mm - - - -
RS Stock No. 477-6751
Mfr. Part No.ETP CLASSIC 50MM
BrandLenze
MYR1,285.06
Each
units
83mm 50mm 65mm 82mm 1900Nm Steel -30°C +85°C