Heavy-duty pulley block with shackle for industrial lifting and rigging, displaying warning label and secure fittings.

Crosby Q-681-Z / Q-682-Z / Q-683-Z Bronze Bushed Steel Sheaves

SKU: GRRR399 Category: Blocks

Product details

All blocks are galvanized.
Sheave lubricated through pressure lube fitting in center pin.
Assembled with self lubricated bronze bushing.
Combines weight of regular oval blocks with strength of extra heavy oval blocks.
Assembled with bolt type anchor shackle.
Side plates are rounded to provide additional stiffness and reduce wear and chaffing of the rope.

Videos

Q-681-Z / Q-682-Z / Q-683-Z Bronze Bushed Steel Sheaves

Block Size (in)	Sheave Dimensions (in)			Wire Rope Diameter (in)	Working Load Limit (short Tons)			Weight Each (lb)
	Outside Diam.	Rim Thickness	Center Pin Dia.		Single	Double	Triple	Single	Double	Triple
											6	6	1.00	.75	3/8	3	3	3	15	15	15
											6	6	1.00	.75	1/2	3	3	3	16	16	16
											8	8	1.25	1.00	5/8	4	4	4	29	29	29
											10	10	1.25	1.00	5/8	4	4	4	38	38	38

Block Size (in)	Sheave Dimensions (mm)			Wire Rope Diameter (mm)	Working Load Limit (t)			Weight Each (kg)
	Outside Diam.	Rim Thickness	Center Pin Dia.		Single	Double	Triple	Single	Double	Triple
											6	152	25.4	-	-	2.70	3.63	4.50	-	-	-
											6	152	25.4	-	-	2.70	3.63	4.50	-	-	-
											8	203	31.8	-	-	3.63	5.44	-	-	-	-
											10	254	31.8	-	-	3.63	6.35	7.25	-	-	-

*Ultimate Load is 4 times the Working Load Limit.

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