820 RubberT op series chains are 1.5 inch pitch and have a top plate thickness of 0.24 inches. Rubber Top chains offer the best of both worlds: high strength low friction links with durable, non-marking high friction pads. These chains are used in incline, decline & stop belt applications for cased goods. Chain is available in different chain materials for different friction, wear, and speed characteristics. Chain is designed to operate on standard 820 series sprockets for true chain/sprocket interaction.