Allen 20mm Plain Bearing Multi-Function Single Block

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Allen 20mm Plain Bearing Multi-Function Single. The multi function block has a slightly different strap compared to the A2020P. The A2021P multi function block is the base block us ed to create a variety of the double and triple blocks. Plain bearing blocks are the ideal choice for take up systems or systems which do not require friction reduction. For ultimate performance, we suggest using the Dynamic block range instead. This plain bearing block is made from recycled plastics. Plain Bearing, The acetal sheave spins around the central axle. This type of bearing has a long lifespan and is very low maintenance. Becket, The hole through the middle of the block can be used as a tying off point (becket). Show more