inch

Metric

(mm)

Outer diameter and tolerance

(mm)

Natural curve
(mm)

Max. axial pull
(kg)

Φ6

9.00±0.25

40

335

G1/4

Φ8

11.8±0.30

45

470

G5/16

Φ10

45.5±0.30

55

590

G5/16

Φ12

16.5±0.35

60

710

G3/8

Φ13

17.5±0.35

65

765

G1/4

Φ15

20.2±0.35

80

885

G1/2

Φ16

21.2±0.35

85

940

G3/4

Φ19

24.5±0.40

95

1120

G3/4

Φ20

25.5±0.40

100

1180

G13/4

Φ25

31.7±0.45

120

1450

G11/4

Φ32

39.6±0.50

150

1885

G11/2

Φ38

46.6±0.60

180

2240

G21/2

Φ51

59.5±1.00

220

3000

G21/2

Φ64

73.5±1.50

310

3770

G31/2

Φ75

84.5±2.00

350

4405

G41/2

Φ100

109.0±3.0

410

4700