FF-T-276C
3.3.3 Type III. Heavy-wire rope shall be of the split oval construction, semicircular at the closed ends with the
sides tapering together at the free ends. The free ends shall have a rounded shape. Heavy wire rope thimbles
shall conform to the design and dimensions shown on figure 3.
Thimble size
(nominal wire-rope
B
C
diameter)
minimum
Inches
Inch
Inch
minimum
Inch
decimals mm
decimals
Inches
decimals
Inch
Inches
mm
mm
1/4
.25
6.4
1-5/8
1.63
41.4
3/4
.75
19.1
5/16
.313
8.0
1-7/8
1.88
47.8
1
1.00
25.4
3/8
.375
9.5
2-1/8
2.13
54.1
1-1/8
1.13
28.7
7/16
.438
11.2
2-1/4
2.25
57.2
1-1/4
1.25
31.8
1/2
.50
12.7
2-5/8
2.63
66.8
1-1/2
1.50
38.1
9/16
.563
14.3
2-3/4
2.75
69.9
1-1/2
1.50
38.1
5/8
.625
16
3-1/4
3.25
82.6
1-3/4
1.75
44.5
3/4
.75
19.1
3-3/4
3.75
95.3
2
2.00
51
7/8
.875
22.2
4-1/4
4.25
108
2-1/4
2.25
57.2
1
1.00
25.4
4-1/2
4.50
114.3
2-1/2
2.50
63.5
1-1/8
1.13
28.7
5
5
127
2-7/8
2.88
73.2
1-1/4
1.25
31.8
5-1/3
5.33
135.4
2-7/8
2.88
73.2
1-3/8
1.38
35.1
6-1/4
6.25
158.8
3-1/2
3.50
88.9
1-1/2
1.50
38.1
6-1/4
6.25
158.8
3-1/2
3.50
88.9
1-5/8
1.63
41.4
8
8.00
203
4
4.00
101.6
1-3/4
1.75
44.5
9
9.00
229
4-1/2
4.50
114.3
1-7/8
1.88
47.8
10
10.00
254
5
5.00
127
2
2.00
51
10-15/16
10.94
278
6
6.00
152.4
See notes at end of figure.
FIGURE 3. Type III, split oval heavy wire-rope thimbles.
8
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