Square/Allen Drive Working Torque

Velikosti pohonu 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.

Velikosti pohonu

Inch or mm

Typ pohonu

Maximální provozní tlak

Probable Failure

ft lb

Nm

ft lb

Nm

1/2"

Hex

353

478

392

531

1/2"

Čtverec

367

497

408

553

5/8"

Hex

689

934

766

1 038

3/4"

Hex

1 191

1 614

1 324

1 794

3/4"

Čtverec

1 239

1 679

1 377

1 865

7/8"

Hex

1 892

2 565

2 102

2 848

1.

Hex

2 824

3 827

3 138

4 252

1.

Čtverec

2 937

3 980

3 263

4 422

1/1/8:

Hex

4 021

5 448

4 468

6 054

1/1/4:

Hex

5 516

7 474

6 129

8 304

1/3/8:

Hex

7 341

9 948

8 157

11 053

1/1/2:

Hex

9 531

12 915

10 590

14 350

1/1/2:

Čtverec

9 912

13 432

11 014

14 924

1/5/8:

Hex

12 118

16 420

13 465

18 245

1/3/4:

Hex

15 135

20 508

16 817

22 787

1/7/8:

Hex

18 616

25 224

20 684

28 027

2”

Hex

22 593

30 613

25 103

34 015

2/1/4:

Hex

32 168

43 588

35 742

48 431

2/1/2:

Hex

44 126

59 791

49 029

66 435

2/1/2:

Čtverec

45 891

62 183

50 990

69 092

12mm

Hex

298

404

331

449

17mm

Hex

847

1 147

941

1 275

19mm

Hex

1 182

1 602

1 313

1 780

22mm

Hex

1 835

2 486

2 039

2 763

24mm

Hex

2 382

3 228

2 647

3 587

27mm

Hex

3 392

4 596

3 769

5 107

32mm

Hex

5 647

7 652

6 275

8 502

36mm

Hex

8 040

10 895

8 934

12 105

41mm

Hex

11 878

16 094

13 197

17 882

46mm

Hex

16 774

22 730

18 638

25 255

50mm

Hex

21 542

29 190

23 935

32 433