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. 477-6997
Mfr. Part No.TLK110 20X28
BrandLenze
$51.67
Each
units
20mm 28mm 50mm 44mm 220Nm - -40°C +300°C
RS Stock No. 477-6852
Mfr. Part No.ETP EXPRESS 30MM
BrandLenze
$392.21
Each
units
36mm 30mm 64.5mm 54mm 380Nm Steel -30°C +85°C
RS Stock No. 488-8006
Mfr. Part No.R6-111 139
BrandLenze
$84.19
Each
units
6mm 14mm 18mm 22mm 5Nm Steel -30°C +85°C
RS Stock No. 477-7029
Mfr. Part No.TLK110 30X41
BrandLenze
$66.50
Each
units
30mm 41mm 62mm 51mm 510Nm - -40°C +300°C
RS Stock No. 477-7091
Mfr. Part No.TLK110 19X27
BrandLenze
$48.81
Each
units
19mm 27mm 49mm 44mm 210Nm - -40°C +300°C
RS Stock No. 477-7007
Mfr. Part No.TLK110 25X34
BrandLenze
$61.22
Each
units
25mm 34mm 56mm 51mm 280Nm - -40°C +300°C
RS Stock No. 477-6701
Mfr. Part No.ETP CLASSIC 32MM
BrandLenze
$370.56
Each
units
60mm 32mm 43mm 57mm 420Nm Steel -30°C +85°C
RS Stock No. 477-7013
Mfr. Part No.TLK110 28X39
BrandLenze
$65.07
Each
units
28mm 39mm 61mm 51mm 465Nm - -40°C +300°C
RS Stock No. 477-6880
Mfr. Part No.ETP EXPRESS 35MM
BrandLenze
$494.18
Each
units
42mm 72mm 35mm 59mm 640Nm Steel -30°C +85°C
RS Stock No. 477-6694
Mfr. Part No.ETP CLASSIC 30MM
BrandLenze
$336.94
Each
units
57mm 30mm 41mm 52mm 420Nm Steel -30°C +85°C
RS Stock No. 477-6919
Mfr. Part No.ETP EXPRESS 45MM
BrandLenze
$727.18
Each
units
54mm 45mm 93mm 78mm 1400Nm Steel -30°C +85°C
RS Stock No. 106-5534
Mfr. Part No.TLK110 6 x 14 mm
BrandTOLLOCK
$45.36
Each
units
6mm 14mm 25mm 24mm 16Nm - -40°C +300°C
RS Stock No. 477-6874
Mfr. Part No.ETP EXPRESS 32MM
BrandLenze
$324.87
Each
units
39mm 32mm 68.5mm 56mm 440Nm Steel -30°C +85°C
RS Stock No. 477-6650
Mfr. Part No.ETP CLASSIC 24MM
BrandLenze
$203.03
Each
units
49mm 24mm 34mm 45mm 200Nm Steel -30°C +85°C
RS Stock No. 106-5536
Mfr. Part No.TLK110 16 X 24 mm
BrandTOLLOCK
$48.39
Each
units
16mm 24mm 44mm 42mm 180Nm - -40°C +300°C
RS Stock No. 188-3177
Mfr. Part No.7012 - 19x47
BrandRingfeder
$108.36
Each
units
- 47mm - 27.5mm - - - -
RS Stock No. 477-6666
Mfr. Part No.ETP CLASSIC 25MM
BrandLenze
$289.30
Each
units
34mm - 49mm 43mm 250Nm Steel -30°C +85°C
RS Stock No. 188-3199
Mfr. Part No.7012 - 85x125
BrandRingfeder
$196.74
Each
units
- 125mm - 39.5mm - - - -
RS Stock No. 188-3168
Mfr. Part No.4061 - 55x100
BrandRingfeder
$140.26
Each
units
42 mm, 45 mm, 48mm 100mm - 34.5mm 1600 Nm, 1950 Nm, 2300Nm - - -
RS Stock No. 477-6767
Mfr. Part No.ETP CLASSIC 45MM
BrandLenze
$1,643.41
Each
units
77mm 45mm 59mm 75mm 1290Nm Steel -30°C +85°C