40mm Dynamic Bearing Blocks

Allen's new 40mm dynamic blocks for 2023 are made from high-strength, lightweight glass-loaded nylon and feature dynamic bearings. The result is a high-performance block range suitable for keelboats and dinghies.

Dynamic Bearings - Twin rows of stainless steel ball bearings running on a stainless steel rail provide superior rolling speeds and durability when compared to plastic alternatives.

Swivel Shackle Attachment - Double, triple, and quadruple sheave variations all come with a lockable swivel shackle attachment. The shackle can be locked in 90-degree orientations. Alternatively, remove the shackle lock and allow the block to rotate freely.

Adjustable Cleat Arms - Single, double and triple sheave options are available with aluminium ball-bearing cam cleats mounted via an adjustable arm. The arm can be adjusted to suit your sheeting angle by simply loosening the nut and bolt through the centre of the block, loosening the side plates and retightening everything at the required angle.

Maximum Working Load - If exceeded the block may not perform as designed. Breaking Load - The load at which a major block failure is likely to occur.

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Allen TII-Lock 40 Allen TII-Lock 40 - Ideal for easy option to attach Allen TII-On Blocks £3.90 *	Allen 40mm Single Dynamic Bearing Block with Ultra Strap Allen 40mm Single Dynamic Bearing Block with Ultra Strap - New design for 2023 £34.90 *	Allen 40mm Single Dynamic Bearing Tie On Block Allen 40mm Single Dynamic Bearing Tie On Block - Tie on block with soft attachment option to allow more movement From £35.20 *
Allen 40mm Single Dynamic Bearing Cheek Block Allen 40mm Single Dynamic Bearing Cheek Block - New design for 2023 £36.90 *	Allen 40mm Single Dynamic Bearing Block with Removable Ultra Strap Allen 40mm Single Dynamic Bearing Block with Removable Ultra Strap £39.20 *	Allen 40mm Single Dynamic Bearing Cheek Block with Becket Allen 40mm Single Dynamic Bearing Cheek Block with Becket - New design for 2023 £39.30 *
Allen 40mm Single Dynamic Bearing Block with Swivel Head Allen 40mm Single Dynamic Bearing Block with Swivel Head - New design for 2023 £40.10 *	Allen 40mm Single Stand Up Dynamic Bearing Block Allen 40mm Single Stand Up Dynamic Bearing Block - New design for 2023 £40.50 *	Allen 40mm Single Swivel Dynamic Bearing Block with Becket Allen 40mm Single Swivel Dynamic Bearing Block with Becket - New design for 2023 £42.30 *
Allen 40mm Single Dynamic Bearing Block with Hook Allen 40mm Single Dynamic Bearing Block with Hook - New design for 2023 £45.50 *	Allen 40mm Single Dynamic Bearing Block with Fiddle Allen 40mm Single Dynamic Bearing Block with Fiddle - New design for 2023 £52.90 *	Allen 40mm and 30mm Linked Single Dynamic Bearing Blocks Allen 40mm and 30mm Linked Single Dynamic Bearing Blocks - New design for 2023 £52.90 *
Allen 40mm Single High Load Dynamic Bearing Tie On Block Allen 40mm Single High Load Dynamic Bearing Tie On Block £56.90 *	Allen 40mm Single Dynamic Bearing Block with Fiddle and Hook Allen 40mm Single Dynamic Bearing Block with Fiddle and Hook - New design for 2023 £58.50 *	Allen 40mm Single Swivel Dynamic Bearing Block with Becket and Fiddle Allen 40mm Single Swivel Dynamic Bearing Block with Becket and Fiddle - New design for 2023 £59.90 *
Allen 40mm Single Dynamic Bearing High Load Block Allen 40mm Single Dynamic Bearing High Load Block - New design for 2023 £61.90 *	Allen 40mm Single Swivel Dynamic Bearing Block with Becket, Fiddle and Hook Allen 40mm Single Swivel Dynamic Bearing Block with Becket, Fiddle and Hook - New design for 2023 £64.90 *	Allen 40mm Double Dynamic Bearing Block with Swivel Head Allen 40mm Double Dynamic Bearing Block with Swivel Head - New design for 2023 £79.90 *
Allen 40mm Double Dynamic Bearing Block with Swivel Head and Becket Allen 40mm Double Dynamic Bearing Block with Swivel Head and Becket - New design for 2023 £82.50 *	Allen 40mm Single Swivel Dynamic Bearing Block with Cam Cleat Allen 40mm Single Swivel Dynamic Bearing Block with Cam Cleat - New design for 2023 £95.90 *	Allen 40mm Single Swivel Dynamic Bearing Block with Becket and Cam Cleat Allen 40mm Single Swivel Dynamic Bearing Block with Becket and Cam Cleat - New design for 2023 £97.90 *
Allen 40mm Single Dynamic Bearing Block with Fiddle and Cam Cleat Allen 40mm Single Dynamic Bearing Block with Fiddle and Cam Cleat - New design for 2023 £108.90 *	Allen 40mm Single Dynamic Bearing Block with Fiddle, Hook and Cam Cleat Allen 40mm Single Dynamic Bearing Block with Fiddle, Hook and Cam Cleat - New design for 2023 £114.90 *	Allen 40mm Single Swivel Dynamic Bearing Block with Becket, Fiddle and Cam Cleat Allen 40mm Single Swivel Dynamic Bearing Block with Becket, Fiddle and Cam Cleat - New design for 2023 £119.90 *
Allen 40mm Single Swivel Dynamic Bearing Block with Becket, Fiddle, Hook and Cam Cleat Allen 40mm Single Swivel Dynamic Bearing Block with Becket, Fiddle, Hook and Cam Cleat - New design for 2023 £119.90 *	Allen 40mm Triple Dynamic Bearing Block with Swivel Head Allen 40mm Triple Dynamic Bearing Block with Swivel Head - New design for 2023 £119.90 *	Allen 40mm Triple Dynamic Bearing Block with Swivel Head and Becket Allen 40mm Triple Dynamic Bearing Block with Swivel Head and Becket - New design for 2023 £121.90 *
Allen 40mm XHL Extreme High Load Block Allen 40mm XHL Extreme High Load Block - Designed for the heavy jobs on the boat with a break load of 1500kg £149.90 * RRP £168.90 You save £19.00	Allen 40mm Quad Dynamic Bearing Block with Swivel Head Allen 40mm Quad Dynamic Bearing Block with Swivel Head - New design for 2023 £159.90 *	Allen 40mm Triple Dynamic Bearing Block with Swivel Head and Cam Cleat Allen 40mm Triple Dynamic Bearing Block with Swivel Head and Cam Cleat - New design for 2023 £189.90 *

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