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Snatch Blocks

HS21B-Single Sheave BB

Laser cut side plates
Grade 5 bolts secured with lock washers and staked nuts.
Bronze bushed sheaves with larger bearing diameter for extended block life.
Beckets furnished on all blocks.
For reeving information, see page 385.
Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements.  Importantly, these blocks meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26
BB - Bronze Bushing
BR - Roller Bearing


Block Size (in.) Fitting Single Sheave 21B Stock No. Sheave Dimensions (mm) Manila Rope Size (mm) Working Load Limit (t)* Weight Each (kg)
Outside Diam. Rim Thickness Center Pin Diam.
4 HS 603831 57 16 9,65 13 0,45 0,79
5 HS 603859 76 19,1 9,65 16 0,54 1,47
6 HS 603877 89 25,4 12,7 19 0,82 2,27
8 HS 603911 121 28,7 16 22-26 1,27 5,9
4 N 606437 57 16 9,65 13 0,45 0,79
5 N 606455 76 19,1 9,65 16 0,54 1,47
6 N 606473 89 25,4 12,7 19 0,82 2,27
8 N 606516 121 28,7 16 22-26 1,27 5,9
4 S 610039 57 16 9,65 13 0,45 0,79
5 S 610057 76 19,1 9,65 16 0,54 1,47
6 S 610075 89 25,4 12,7 19 0,82 2,27
8 S 610119 121 28,7 16 22-26 1,27 5,9
* Ultimate Load is 4 times the Working Load Limit
Fitting Type : HS-Latch Hook , N- Swivel Hook with Latch , S-Round Pin Anchor Shackle

GENERAL INFO
Laser cut side plates
Grade 5 bolts secured with lock washers and staked nuts.
Bronze bushed sheaves with larger bearing diameter for extended block life.
Beckets furnished on all blocks.
For reeving information, see page 385.
Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements.  Importantly, these blocks meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26

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