Air Compressor Piston Rings 3 Piece Set | 42mm to 65mm Cylinder Sizes

This air compressor piston rings set is a 3 piece replacement kit for compressor and air pump cylinders, made to keep the seal between the piston and the cylinder wall. The kit holds 2 balance rings and 1 seal ring, and it is sold in 5 sizes to suit cylinder diameters of 42mm, 47mm, 48mm, 51mm, 52mm and 65mm. Features and benefits: - 3 rings per kit, 2 balance rings plus 1 seal ring - a full set to replace worn or damaged rings on the pump piston in one go - Six cylinder diameters covered, 42mm, 47mm, 48mm, 51mm, 52mm and 65mm - match the ring size to your bore before ordering - Standard inner and outer diameters - made to be fitted and removed without fuss - Surface free of casting defects such as cracks, pores and looseness - intended to give a tight fit on the piston - Gas ring and oil ring sizes published for every option - check thickness and diameter against your old rings - Replace when axial clearance is greater than 0.13mm - a clear wear limit to work to during pump servicing Applications: - Rebuilding the pump of a piston air compressor - Restoring compression on a tired workshop or garage compressor - Servicing small air pumps and pneumatic equipment - Spares stock for maintenance engineers In the box: 3 x air compressor piston ring in the size you select (2 balance rings and 1 seal ring). Note: Choose the option that matches your cylinder diameter. Isolate the compressor from power and release all tank pressure before opening the pump. Measurements may vary slightly from the stated figures, so check your old rings before ordering.