27
2612
2613
2619
2140
2141
MC Scow © Hannah Lee Noll
 
 
 
 
 
 
 
 
 
 
Ratchet Blocks
About Carbo Air blocks: see feature page at beginning of this section.
75 mm
Actual size
57 mm
Actual size
40 mm
Actual size
Part
No.
Description
Sheave
Ø
Length
Weight
Shackle pin
Ø
Max line
Ø
Maximum
working load
Breaking
load
in
mm
in
mm
oz
g
in
mm
in
mm
lb
kg
lb
kg
  40 mm 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2612 
 Triple/swivel/471 Carbo-Cam* 
 1 9/16 
 40 
 3 11/16 
 94 
 8.5 
 242 
 1/4 
 6 
 3/16 
 5 
 750 
 340 
 1500 
 680 
 2613 
 Triple/swivel/471 Carbo-Cam/becket* 
 1 9/16 
 40 
 4 5/16 
 110 
 8.6 
 245 
 1/4 
 6 
 3/16 
 5 
 900 
 408 
 1800 
 816 
 2619 
 Triple/471 Carbo-Cam/29 mm block/becket*  1 9/16 
 40 
 4 3/4 
 121 
 9.5 
 269 
 1/4 
 6 
 3/16 
 5 
 900 
 408 
 1800 
 816 
  57 mm 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2140 
 Triple/swivel/150 Cam-Matic* 
 2 1/4 
 57 
 4 1/16 
 103 
 15.4 
 435 
 1/4 
 6 
 3/8 
 10 
 1500 
 680 
 3750 
 1700 
 2141 
 Triple/swivel/150 Cam-Matic/becket* 
 2 1/4 
 57 
 4 15/16 
 125 
 15.7 
 445 
 1/4 
 6 
 3/8 
 10 
 1800 
 816 
 4500 
 2041 
*Maximum working loads and breaking loads for blocks based on cam strengths. 
Cam assembly adjusts and locks 
in a range of positions for crew 
accessibility.

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