Black - Lovejoy spiders with 80 Shore A hardness ensuring excellent damping properties. Yellow - Spiders with 92 Shore A hardness used in hydraulic applications. Red - Lovejoy coupling spiders with 95 / 98 Shore A hardness suitable in high torque applications. Green - Lovejoy spiders with 64 Shore D hardness for humid environments. Blue - Lovejoy spiders with 92 & 95 Shore A hardness for chemical resistance and high torque capabilities. Tan / Bronze - Lovejoy coupling spiders with 55 Shore D hardness to ensure excellent chemical resistance.