Allen 20mm Dynamic Composite Cheek Block

Single composite cheek block with 20mm sheave and 2x counter sunk 4mm fixing holes 18mm apart

To fully appreciate the difference of the Allen dynamic bearing range of blocks, take a closer look at the design, quality of materials and construction to fully appreciate the difference. Soft contours of the sheave and cheeks moulded from advanced engineering polymers, patented dynamic bearing technology featuring twin rows of 316 stainless steel ball bearings all held together with a meticulously designed jacket, Allen blocks claim to be the strongest and best available on the market.