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. 477-6616
Mfr. Part No.ETP CLASSIC 15MM
BrandLenze
€148.46
Each
units
38mm 15mm 23mm 35mm 55Nm Steel -30°C +85°C
RS Stock No. 477-6903
Mfr. Part No.ETP EXPRESS 40MM
BrandLenze
€314.00
Each
units
48mm 40mm 86.5mm 75mm 1100Nm Steel -30°C +85°C
RS Stock No. 488-8006
Mfr. Part No.R6-111 139
BrandLenze
€48.37
Each
units
6mm 14mm 18mm 22mm 5Nm Steel -30°C +85°C
RS Stock No. 477-6975
Mfr. Part No.TLK110 14X23
BrandLenze
€25.55
Each
units
14mm 23mm 38mm 30mm 68Nm - -40°C +300°C
RS Stock No. 477-6789
Mfr. Part No.ETP EXPRESS 15MM
BrandLenze
€187.42
Each
units
18mm 15mm 46mm 39mm 46Nm Steel -30°C +85°C
RS Stock No. 477-6717
Mfr. Part No.ETP CLASSIC 35MM
BrandLenze
€207.36
Each
units
63mm 35mm 47mm 60mm 650Nm Steel -30°C +85°C
RS Stock No. 488-8028
Mfr. Part No.R6-56 441
BrandLenze
€55.81
Each
units
10mm 16mm 28mm 28mm 23Nm Steel -30°C +85°C
RS Stock No. 188-3163
Mfr. Part No.4061 - 40x72
BrandRingfeder
€58.31
Each
units
30 mm, 31 mm, 32mm 72mm - 28.5mm 900 Nm, 910 Nm, 990Nm - - -
RS Stock No. 488-8034
Mfr. Part No.R6-111 171
BrandLenze
€58.42
Each
units
11mm 18mm 30mm 29.5mm 25Nm Steel -30°C +85°C
RS Stock No. 188-3164
Mfr. Part No.4061 - 44x80
BrandRingfeder
€63.32
Each
units
32 mm, 35 mm, 36mm 80mm - 30mm 1000 Nm, 1250 Nm, 1350Nm - - -
RS Stock No. 477-7007
Mfr. Part No.TLK110 25X34
BrandLenze
€35.38
Each
units
25mm 34mm 56mm 51mm 280Nm - -40°C +300°C
RS Stock No. 188-3187
Mfr. Part No.7012 - 40x65
BrandRingfeder
€68.65
Each
units
- 65mm - 27.5mm - - - -
RS Stock No. 188-3195
Mfr. Part No.7012 - 65x95
BrandRingfeder
€92.42
Each
units
- 95mm - 33.5mm - - - -
RS Stock No. 188-3173
Mfr. Part No.4061 - 80x145
BrandRingfeder
€129.20
Each
units
60 mm, 65 mm, 70mm 145mm - 37.8mm 4000 Nm, 4900 Nm, 5750Nm - - -
RS Stock No. 188-3188
Mfr. Part No.7012 - 42x75
BrandRingfeder
€80.38
Each
units
- 75mm - 33.5mm - - - -
RS Stock No. 188-3201
Mfr. Part No.7012 - 90x130
BrandRingfeder
€120.14
Each
units
- 130mm - 39.5mm - - - -
RS Stock No. 188-3199
Mfr. Part No.7012 - 85x125
BrandRingfeder
€113.74
Each
units
- 125mm - 39.5mm - - - -
RS Stock No. 488-8056
Mfr. Part No.R6-111 18X
BrandLenze
€61.49
Each
units
12mm 18mm 30mm 29.5mm 27Nm Steel -30°C +85°C
RS Stock No. 477-6931
Mfr. Part No.TLK110 8X15
BrandLenze
€25.05
Each
units
8mm 15mm 27mm 29mm 29Nm - -40°C +300°C
RS Stock No. 477-6638
Mfr. Part No.ETP CLASSIC 20MM
BrandLenze
€138.48
Each
units
45mm 20mm 28mm 42mm 125Nm Steel -30°C +85°C