SEE APPLICATION AND
WARNING INFORMATION
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On Pages
332
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339
Crown Blocks
McKissick Roll-Forged sheaves with flame hardened grooves
Double row pre-adjusted sealed tapered bearings mounted on a steel shaft.
Heavy center and side plates for proper support of center pin.
Pre-assembled units for rapid attachment to crown assembly for installation on derrick.
On multiple sheave assemblies, one sheave can be grooved for sand line on request.
Other sizes available upon request.
Sheave
Diameter
(in.)
Block
No.
Crown Block
Stock
No.
No. of
Sheaves
Working
Load Limit
(Tons)
Standard
Wire Rope
Size
(in.)*
Weight
Each
(lbs.)
24
241
351158
1
15
7/8
200
24
242
351167
2
30
7/8
278
24
243
351176
3
45
7/8
375
24
731
351185
1
35
1
200
24
732
351194
2
75
1
350
24
733
351201
3
100
1
525
24
734
351210
4
125
1
720
30
741
351229
1
40
1-1/8
325
30
742
351238
2
80
1-1/8
560
30
743
351247
3
110
1-1/8
800
30
744
351256
4
140
1-1/8
982
30
745
351265
5
170
1-1/8
1163
*May be furnished in other wire rope sizes.
