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
€154.40
Each
units
38mm 15mm 23mm 35mm 55Nm Steel -30°C +85°C
RS Stock No. 477-6903
Mfr. Part No.ETP EXPRESS 40MM
BrandLenze
€326.56
Each
units
48mm 40mm 86.5mm 75mm 1100Nm 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. 477-6975
Mfr. Part No.TLK110 14X23
BrandLenze
€26.83
Each
units
14mm 23mm 38mm 30mm 68Nm - -40°C +300°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. 477-6789
Mfr. Part No.ETP EXPRESS 15MM
BrandLenze
€187.42
Each
units
18mm 15mm 46mm 39mm 46Nm Steel -30°C +85°C
RS Stock No. 477-6953
Mfr. Part No.TLK110 12X18
BrandLenze
€27.10
Each
units
12mm 18mm 32mm 30mm 58Nm - -40°C +300°C
RS Stock No. 188-3177
Mfr. Part No.7012 - 19x47
BrandRingfeder
€62.57
Each
units
- 47mm - 27.5mm - - - -
RS Stock No. 188-3161
Mfr. Part No.4061 - 36x72
BrandRingfeder
€49.04
Each
units
28 mm, 30 mm, 31mm 72mm - 27.5mm 730 Nm, 860 Nm, 890Nm - - -
RS Stock No. 477-6739
Mfr. Part No.ETP CLASSIC 40MM
BrandLenze
€211.27
Each
units
70mm 40mm 53mm 68mm 940Nm Steel -30°C +85°C
RS Stock No. 477-6767
Mfr. Part No.ETP CLASSIC 45MM
BrandLenze
€178.75
Each
units
77mm 45mm 59mm 75mm 1290Nm Steel -30°C +85°C
RS Stock No. 477-7091
Mfr. Part No.TLK110 19X27
BrandLenze
€28.04
Each
units
19mm 27mm 49mm 44mm 210Nm - -40°C +300°C
RS Stock No. 188-3157
Mfr. Part No.4061 - 21x50
BrandRingfeder
€39.12
Each
units
16 mm, 17 mm, 18mm 50mm - 22.5mm 250 Nm, 290 Nm, 330Nm - - -
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. 488-8012
Mfr. Part No.R6-111 147
BrandLenze
€50.53
Each
units
8mm 15mm 27mm 25.5mm 17Nm Steel -30°C +85°C
RS Stock No. 188-3178
Mfr. Part No.7012 - 20x47
BrandRingfeder
€62.57
Each
units
- 47mm - 27.5mm - - - -
RS Stock No. 188-3186
Mfr. Part No.7012 - 38x65
BrandRingfeder
€68.65
Each
units
- 65mm - 27.5mm - - - -
RS Stock No. 477-6694
Mfr. Part No.ETP CLASSIC 30MM
BrandLenze
€166.66
Each
units
57mm 30mm 41mm 52mm 420Nm Steel -30°C +85°C
RS Stock No. 106-5535
Mfr. Part No.TLK110 15 X 24 mm
BrandTOLLOCK
€25.81
Each
units
15mm 24mm 44mm 42mm 170Nm - -40°C +300°C
RS Stock No. 477-6925
Mfr. Part No.ETP EXPRESS 50MM
BrandLenze
€257.10
Each
units
60mm 50mm 98.5mm 80mm 1900Nm Steel -30°C +85°C