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Blocks
> Crosby 566 Hoisting Blocks
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Crosby 566 Hoisting Blocks
SKU:
GRRR197
Category:
Blocks
Product details
Block is galvanized.
Blocks 14” and larger have flame-hardened roll forged sheaves that assure greater wire life.
Roll forged sheave is fitted closely into mortise of shell so wire cannot jam between sheave and shell.
Available for 3/4” or 1” wire.
Block is fitted with tapered roller bearings which take both load and side thrusts and hold sheave central so it cannot chafe or wear on the sides.
Tapered Roller bearing with neoprene seals and stainless steel center pin provide long life and trouble-free service.
Stainless steel center pin has recessed nuts with lock washers.
Swivel fitting has permanently sealed thrust bearing.
Pressure lubrication fittings are standard on both center pin and swivel.
Individually Proof Tested at 4 times Working Load or 2 times Resultant Load.
A.B.S. recognized load test certificates are furnished.
Cargo hoist blocks are rated by the maximum single line pull of the wire rope being used.
Resultant Load equals 2 times single line pull. Ultimate load equals 5 times the Resultant Load.
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566 Hoisting Blocks
Imperial
Metric
Sheave Size (in)
E-566 Stock No.
J-566 Stock No.
QG-566 Stock No.
QK-566 Stock No.
Single Line Pull (short Tons)
Wire Rope Diameter (in)
Weight Each (lb)
12
775003
775003
775003
775003
5
3/4
95
12
775209
775209
775209
775209
5
3/4
95
12
775405
775405
775405
775405
5
3/4
95
12
775600
775600
775600
775600
5
3/4
95
12
775806
775806
775806
775806
5
3/4
95
12
776002
776002
776002
776002
5
3/4
95
14
775058
775058
775058
775058
10
3/4
100
14
775254
775254
775254
775254
10
3/4
100
14
775450
775450
775450
775450
10
3/4
100
14
775655
775655
775655
775655
10
3/4
100
14
775851
775851
775851
775851
10
3/4
100
14
776057
776057
776057
776057
10
3/4
100
14
775067
775067
775067
775067
10
1
100
14
775263
775263
775263
775263
10
1
100
14
775469
775469
775469
775469
10
1
100
14
775664
775664
775664
775664
10
1
100
14
775860
775860
775860
775860
10
1
100
14
776066
776066
776066
776066
10
1
100
16
776609
776609
776609
776609
10
3/4
130
16
776672
776672
776672
776672
10
3/4
130
16
776681
776681
776681
776681
10
3/4
130
16
776690
776690
776690
776690
10
3/4
130
16
776707
776707
776707
776707
10
3/4
130
16
776716
776716
776716
776716
10
3/4
130
16
752956
752956
752956
752956
10
1
130
16
752965
752965
752965
752965
10
1
130
16
752974
752974
752974
752974
10
1
130
16
752983
752983
752983
752983
10
1
130
16
752992
752992
752992
752992
10
1
130
16
753009
753009
753009
753009
10
1
130
Sheave Size (mm)
E-566 Stock No.
J-566 Stock No.
QG-566 Stock No.
QK-566 Stock No.
Single Line Pull (t)
Wire Rope Diameter (mm)
Weight Each (kg)
305
775003
775003
775003
775003
4.54
19
43.1
305
775209
775209
775209
775209
4.54
19
43.1
305
775405
775405
775405
775405
4.54
19
43.1
305
775600
775600
775600
775600
4.54
19
43.1
305
775806
775806
775806
775806
4.54
19
43.1
305
776002
776002
776002
776002
4.54
19
43.1
356
775058
775058
775058
775058
9.07
19
45.4
356
775254
775254
775254
775254
9.07
19
45.4
356
775450
775450
775450
775450
9.07
19
45.4
356
775655
775655
775655
775655
9.07
19
45.4
356
775851
775851
775851
775851
9.07
19
45.4
356
776057
776057
776057
776057
9.07
19
45.4
356
775067
775067
775067
775067
9.07
25
45.4
356
775263
775263
775263
775263
9.07
25
45.4
356
775469
775469
775469
775469
9.07
25
45.4
356
775664
775664
775664
775664
9.07
25
45.4
356
775860
775860
775860
775860
9.07
25
45.4
356
776066
776066
776066
776066
9.07
25
45.4
406
776609
776609
776609
776609
9.07
19
59
406
776672
776672
776672
776672
9.07
19
59
406
776681
776681
776681
776681
9.07
19
59
406
776690
776690
776690
776690
9.07
19
59
406
776707
776707
776707
776707
9.07
19
59
406
776716
776716
776716
776716
9.07
19
59
406
752956
752956
752956
752956
9.07
25
59
406
752965
752965
752965
752965
9.07
25
59
406
752974
752974
752974
752974
9.07
25
59
406
752983
752983
752983
752983
9.07
25
59
406
752992
752992
752992
752992
9.07
25
59
406
753009
753009
753009
753009
9.07
25
59
5:1 Design Factor based on Resultant Load. Working Load equals maximum single line pull.
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