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. 477-6650
Mfr. Part No.ETP CLASSIC 24MM
BrandLenze
MYR598.08
Each
units
49mm 24mm 34mm 45mm 200Nm Steel -30°C +85°C
RS Stock No. 477-6852
Mfr. Part No.ETP EXPRESS 30MM
BrandLenze
MYR1,292.16
Each
units
36mm 30mm 64.5mm 54mm 380Nm Steel -30°C +85°C
RS Stock No. 188-3154
Mfr. Part No.4061 - 16x41
BrandRingfeder
MYR181.11
Each
units
12 mm, 13 mm, 14 mm 41mm - 18.5mm 90 nm, 110 nm, 130 nm - - -
RS Stock No. 488-8034
Mfr. Part No.R6-111 171
BrandLenze
MYR283.23
Each
units
11mm 18mm 30mm 29.5mm 25Nm Steel -30°C +85°C
RS Stock No. 188-3191
Mfr. Part No.7012 - 50x80
BrandRingfeder
MYR364.76
Each
units
- 80mm - 33.5mm - - - -
RS Stock No. 477-6824
Mfr. Part No.ETP EXPRESS 22MM
BrandLenze
MYR788.97
Each
units
27mm 22mm 55.5mm 46mm 130Nm Steel -30°C +85°C
RS Stock No. 477-6925
Mfr. Part No.ETP EXPRESS 50MM
BrandLenze
MYR1,429.42
Each
units
60mm 50mm 98.5mm 80mm 1900Nm Steel -30°C +85°C
RS Stock No. 106-5538
Mfr. Part No.TLK110 40 X 53 mm
BrandTOLLOCK
MYR204.47
Each
units
40mm 53mm 75mm 56mm 900Nm - -40°C +300°C
RS Stock No. 106-5539
Mfr. Part No.TLK110 50 X 65 mm
BrandTOLLOCK
MYR298.78
Each
units
50mm 65mm 92mm 78mm 2600Nm - -40°C +300°C
RS Stock No. 188-3173
Mfr. Part No.4061 - 80x145
BrandRingfeder
MYR650.44
Each
units
60 mm, 65 mm, 70 mm 145mm - 37.8mm 4000 nm, 4900 nm, 5750 nm - - -
RS Stock No. 477-6789
Mfr. Part No.ETP EXPRESS 15MM
BrandLenze
MYR928.04
Each
units
18mm 15mm 46mm 39mm 46Nm Steel -30°C +85°C
RS Stock No. 188-3195
Mfr. Part No.7012 - 65x95
BrandRingfeder
MYR414.34
Each
units
- 95mm - 33.5mm - - - -
RS Stock No. 477-6818
Mfr. Part No.ETP EXPRESS 20MM
BrandLenze
MYR957.47
Each
units
24mm 20mm 51.5mm 44mm 110Nm Steel -30°C +85°C
RS Stock No. 488-8056
Mfr. Part No.R6-111 18X
BrandLenze
MYR265.04
Each
units
12mm 18mm 30mm 29.5mm 27Nm Steel -30°C +85°C
RS Stock No. 188-3179
Mfr. Part No.7012 - 22x47
BrandRingfeder
MYR311.90
Each
units
- 47mm - 27.5mm - - - -
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. 188-3199
Mfr. Part No.7012 - 85x125
BrandRingfeder
MYR566.38
Each
units
- 125mm - 39.5mm - - - -
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. 188-3162
Mfr. Part No.4061 - 38x72
BrandRingfeder
MYR271.63
Each
units
29 mm, 30 mm, 31 mm 72mm - 30mm 890 nm, 970 nm, 980 nm - - -
RS Stock No. 106-5537
Mfr. Part No.TLK110 35 X 47 mm
BrandTOLLOCK
MYR211.78
Each
units
35mm 47mm 69mm 56mm 790Nm - -40°C +300°C