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. 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. 188-3188
Mfr. Part No.7012 - 42x75
BrandRingfeder
MYR400.55
Each
units
- 75mm - 33.5mm - - - -
RS Stock No. 188-3172
Mfr. Part No.4061 - 75x138
BrandRingfeder
MYR530.73
Each
units
55 mm, 60 mm, 65 mm 138mm - 37.8mm 3300 nm, 4150 nm, 5100 nm - - -
RS Stock No. 188-3153
Mfr. Part No.4061 - 14x37
BrandRingfeder
MYR181.11
Each
units
10 mm, 11 mm, 12 mm 37mm - 14.8mm 37.5 nm, 46 nm, 60 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. 188-3194
Mfr. Part No.7012 - 60x90
BrandRingfeder
MYR372.27
Each
units
- 90mm - 33.5mm - - - -
RS Stock No. 188-3187
Mfr. Part No.7012 - 40x65
BrandRingfeder
MYR341.72
Each
units
- 65mm - 27.5mm - - - -
RS Stock No. 188-3192
Mfr. Part No.7012 - 55x85
BrandRingfeder
MYR381.27
Each
units
- 85mm - 33.5mm - - - -
RS Stock No. 188-3160
Mfr. Part No.4061 - 30x52
BrandRingfeder
MYR225.74
Each
units
24 mm, 25 mm, 26 mm 52mm - 26mm 450 nm, 500 nm, 560 nm - - -
RS Stock No. 188-3175
Mfr. Part No.4061 - 90x155
BrandRingfeder
MYR793.40
Each
units
65 mm, 70 mm, 75 mm 155mm - 44.5mm 6000 nm, 7550 nm, 9150 nm - - -
RS Stock No. 188-3156
Mfr. Part No.4061 - 20x46
BrandRingfeder
MYR181.11
Each
units
15 mm, 16 mm, 17 mm 46mm - 21mm 140 nm, 170 nm, 200 nm - - -
RS Stock No. 188-3157
Mfr. Part No.4061 - 21x50
BrandRingfeder
MYR197.16
Each
units
16 mm, 17 mm, 18 mm 50mm - 22.5mm 250 nm, 290 nm, 330 nm - - -
RS Stock No. 188-3170
Mfr. Part No.4061 - 68x115
BrandRingfeder
MYR468.79
Each
units
50 mm, 55 mm, 60 mm 115mm - 34.5mm 2350 nm, 2850 nm, 3600 nm - - -
RS Stock No. 188-3202
Mfr. Part No.7012 - 95x135
BrandRingfeder
MYR616.74
Each
units
- 135mm - 39.5mm - - - -
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. 188-3155
Mfr. Part No.4061 - 18x44
BrandRingfeder
MYR181.11
Each
units
14 mm, 15 mm, 16 mm 44mm - 18.5mm 110 nm, 130 nm, 160 nm - - -
RS Stock No. 188-3190
Mfr. Part No.7012 - 48x80
BrandRingfeder
MYR364.76
Each
units
- 80mm - 33.5mm - - - -
RS Stock No. 188-3169
Mfr. Part No.4061 - 62x110
BrandRingfeder
MYR422.88
Each
units
48 mm, 50 mm, 52 mm 110mm - 34.5mm 3000 nm, 3300 nm, 3500 nm - - -
RS Stock No. 188-3176
Mfr. Part No.4061 - 95x170
BrandRingfeder
MYR917.29
Each
units
65 mm, 70 mm, 75 mm 170mm - 52.5mm 6700 nm, 8450 nm, 10200 nm - - -
RS Stock No. 188-3203
Mfr. Part No.7012 - 100x145
BrandRingfeder
MYR737.40
Each
units
- 145mm - 47mm - - - -