Atlas Copco RT Руководство пользователя - Страница 14

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Atlas Copco RT Руководство пользователя
7.1

SQUARE / ALLEN DRIVE WORKING TORQUE

DRIVE SIZE: The square or hex drive of each drive is limited in its maximum output by its material and its
engagement area. Since Atlas Copco uses a specially suited alloy-steel for its drive members, the following
maximum torque output can be achieved without drive failure, provided the reaction member abuts close to
the same plane as the nut to be turned.
If the reaction arm cannot abut on the same plane as the nut to be turned, less torque should be applied, as
the additional side load has to be taken into consideration. When toque requirements are close in excess of
the values listed above, use RT's/-9/ Sockets Hex-Drive with replaceable Hex Insert Bits.
RT series is available with square drive (standard) or option
hexagonal/Allen drive. The table below reviews ideal working
range for the respective drives.
DRIVE
TYPE
in
1/2"
Hex
1/2"
Square
5/8"
Hex
3/4"
Hex
3/4"
Square
7/8"
Hex
1"
Hex
1"
Square
1-1/8"
Hex
1-1/4"
Hex
1-3/8"
Hex
1-1/2"
Hex
1-1/2"
Square
1-5/8"
Hex
1-3/4"
Hex
1-7/8"
Hex
2"
Hex
2-1/4"
Hex
2-1/2"
Hex
2-1/2"
Square
14
MAX WORKING
TORQUE
ft lbs
Nm
353
478
367
497
689
934
1191
1614
1239
1679
1892
2565
2824
3827
2937
3980
4021
5448
5516
7474
7341
9948
9531
12915
9912
13432
12118
16420
15135
20508
18616
25224
22593
30613
32168
43588
44126
59791
45891
62183
PROBABLE
FAILURE
ft lbs
Nm
392
531
408
553
766
1038
1324
1794
1377
1865
2102
2848
3138
4252
3263
4422
4468
6054
6129
8304
8157
11053
10590
14350
11014
14924
13465
18245
16817
22787
20684
28027
25103
34015
35742
48431
49029
66435
50990
69092