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. 477-6789
Mfr. Part No.ETP EXPRESS 15MM
BrandLenze
TWD6,952.00
Each
units
18mm 15mm 46mm 39mm 46Nm Steel -30°C +85°C
RS Stock No. 477-6694
Mfr. Part No.ETP CLASSIC 30MM
BrandLenze
TWD6,178.00
Each
units
57mm 30mm 41mm 52mm 420Nm Steel -30°C +85°C
RS Stock No. 477-6874
Mfr. Part No.ETP EXPRESS 32MM
BrandLenze
TWD6,267.00
Each
units
39mm 32mm 68.5mm 56mm 440Nm Steel -30°C +85°C
RS Stock No. 477-6638
Mfr. Part No.ETP CLASSIC 20MM
BrandLenze
TWD5,137.00
Each
units
45mm 20mm 28mm 42mm 125Nm Steel -30°C +85°C
RS Stock No. 477-6616
Mfr. Part No.ETP CLASSIC 15MM
BrandLenze
TWD4,986.00
Each
units
38mm 15mm 23mm 35mm 55Nm Steel -30°C +85°C
RS Stock No. 477-6852
Mfr. Part No.ETP EXPRESS 30MM
BrandLenze
TWD8,462.00
Each
units
36mm 30mm 64.5mm 54mm 380Nm Steel -30°C +85°C
RS Stock No. 188-3195
Mfr. Part No.7012 - 65x95
BrandRingfeder
TWD3,104.00
Each
units
- 95mm - 33.5mm - - - -
RS Stock No. 477-6880
Mfr. Part No.ETP EXPRESS 35MM
BrandLenze
TWD9,533.00
Each
units
42mm 72mm 35mm 59mm 640Nm Steel -30°C +85°C
RS Stock No. 188-3189
Mfr. Part No.7012 - 45x75
BrandRingfeder
TWD2,700.00
Each
units
- 75mm - 33.5mm - - - -
RS Stock No. 188-3203
Mfr. Part No.7012 - 100x145
BrandRingfeder
TWD4,971.00
Each
units
- 145mm - 47mm - - - -
RS Stock No. 188-3194
Mfr. Part No.7012 - 60x90
BrandRingfeder
TWD2,788.00
Each
units
- 90mm - 33.5mm - - - -
RS Stock No. 188-3161
Mfr. Part No.4061 - 36x72
BrandRingfeder
TWD1,645.00
Each
units
28 mm, 30 mm, 31 mm 72mm - 27.5mm 730 nm, 860 nm, 890 nm - - -
RS Stock No. 477-6666
Mfr. Part No.ETP CLASSIC 25MM
BrandLenze
TWD5,428.00
Each
units
34mm - 49mm 43mm 250Nm Steel -30°C +85°C
RS Stock No. 188-3156
Mfr. Part No.4061 - 20x46
BrandRingfeder
TWD1,208.00
Each
units
15 mm, 16 mm, 17 mm 46mm - 21mm 140 nm, 170 nm, 200 nm - - -
RS Stock No. 188-3196
Mfr. Part No.7012 - 70x110
BrandRingfeder
TWD3,705.00
Each
units
- 110mm - 39.5mm - - - -
RS Stock No. 477-6997
Mfr. Part No.TLK110 20X28
BrandLenze
TWD996.00
Each
units
20mm 28mm 50mm 44mm 220Nm - -40°C +300°C
RS Stock No. 477-6903
Mfr. Part No.ETP EXPRESS 40MM
BrandLenze
TWD10,545.00
Each
units
48mm 40mm 86.5mm 75mm 1100Nm Steel -30°C +85°C
RS Stock No. 188-3174
Mfr. Part No.4061 - 85x155
BrandRingfeder
TWD4,813.00
Each
units
60 mm, 65 mm, 70 mm 155mm - 45.8mm 6050 nm, 7250 nm, 8500 nm - - -
RS Stock No. 477-7013
Mfr. Part No.TLK110 28X39
BrandLenze
TWD1,184.00
Each
units
28mm 39mm 61mm 51mm 465Nm - -40°C +300°C
RS Stock No. 477-6953
Mfr. Part No.TLK110 12X18
BrandLenze
TWD867.00
Each
units
12mm 18mm 32mm 30mm 58Nm - -40°C +300°C