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. 477-6880
Mfr. Part No.ETP EXPRESS 35MM
BrandLenze
SGD424.83
Each
units
42mm 72mm 35mm 59mm 640Nm Steel -30°C +85°C
RS Stock No. 477-6925
Mfr. Part No.ETP EXPRESS 50MM
BrandLenze
SGD424.97
Each
units
60mm 50mm 98.5mm 80mm 1900Nm Steel -30°C +85°C
RS Stock No. 488-8012
Mfr. Part No.R6-111 147
BrandLenze
SGD75.51
Each
units
8mm 15mm 27mm 25.5mm 17Nm Steel -30°C +85°C
RS Stock No. 188-3198
Mfr. Part No.7012 - 80x120
BrandRingfeder
SGD169.41
Each
units
- 120mm - 39.5mm - - - -
RS Stock No. 188-3199
Mfr. Part No.7012 - 85x125
BrandRingfeder
SGD170.15
Each
units
- 125mm - 39.5mm - - - -
RS Stock No. 477-6739
Mfr. Part No.ETP CLASSIC 40MM
BrandLenze
SGD349.20
Each
units
70mm 40mm 53mm 68mm 940Nm Steel -30°C +85°C
RS Stock No. 477-6953
Mfr. Part No.TLK110 12X18
BrandLenze
SGD38.62
Each
units
12mm 18mm 32mm 30mm 58Nm - -40°C +300°C
RS Stock No. 477-6903
Mfr. Part No.ETP EXPRESS 40MM
BrandLenze
SGD469.91
Each
units
48mm 40mm 86.5mm 75mm 1100Nm Steel -30°C +85°C
RS Stock No. 477-6919
Mfr. Part No.ETP EXPRESS 45MM
BrandLenze
SGD404.81
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
SGD38.98
Each
units
6mm 14mm 25mm 24mm 16Nm - -40°C +300°C
RS Stock No. 477-6997
Mfr. Part No.TLK110 20X28
BrandLenze
SGD44.43
Each
units
20mm 28mm 50mm 44mm 220Nm - -40°C +300°C
RS Stock No. 188-3174
Mfr. Part No.4061 - 85x155
BrandRingfeder
SGD214.46
Each
units
60 mm, 65 mm, 70 mm 155mm - 45.8mm 6050 nm, 7250 nm, 8500 nm - - -
RS Stock No. 477-6666
Mfr. Part No.ETP CLASSIC 25MM
BrandLenze
SGD241.87
Each
units
34mm - 49mm 43mm 250Nm Steel -30°C +85°C
RS Stock No. 106-5538
Mfr. Part No.TLK110 40 X 53 mm
BrandTOLLOCK
SGD68.25
Each
units
40mm 53mm 75mm 56mm 900Nm - -40°C +300°C
RS Stock No. 106-5535
Mfr. Part No.TLK110 15 X 24 mm
BrandTOLLOCK
SGD38.62
Each
units
15mm 24mm 44mm 42mm 170Nm - -40°C +300°C
RS Stock No. 188-3197
Mfr. Part No.7012 - 75x115
BrandRingfeder
SGD167.55
Each
units
- 115mm - 39.5mm - - - -
RS Stock No. 188-3173
Mfr. Part No.4061 - 80x145
BrandRingfeder
SGD210.72
Each
units
60 mm, 65 mm, 70 mm 145mm - 37.8mm 4000 nm, 4900 nm, 5750 nm - - -
RS Stock No. 188-3184
Mfr. Part No.7012 - 32x60
BrandRingfeder
SGD99.33
Each
units
- 60mm - 27.5mm - - - -
RS Stock No. 477-7013
Mfr. Part No.TLK110 28X39
BrandLenze
SGD52.80
Each
units
28mm 39mm 61mm 51mm 465Nm - -40°C +300°C
RS Stock No. 188-3160
Mfr. Part No.4061 - 30x52
BrandRingfeder
SGD73.13
Each
units
24 mm, 25 mm, 26 mm 52mm - 26mm 450 nm, 500 nm, 560 nm - - -
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