A new line of off-the-shelf metric external, internal and E-type retaining rings have been introduced by Stock Drive Products to meet an increasing U.S. demand.

There are 56 of the most commonly used sizes stocked in carbon spring steel (SAE 1065-1090), which has a tensile strength of 3164 kg/cm². They have been oil-dipped for added protection. Complete technical specifications including shaft, groove and free diameters, groove widths and ring thicknesses, plus ring thrust strength are shown for each size.

The external rings, known as the MD0471M series, feature constant circularity and groove pressure making them suitable for use even under heavy thrust loads and high rotational speeds. They are stocked for 3 mm through 120 mm shafts and conform to DIN 471.

The internal rings, known as the MD0472M series, are offered for 8 mm through 25 mm housing bores and meet DIN 472.

The E-Rings, identified as the MD6799M series, are available for 1 mm through 13 mm shafts. They conform to DIN 6799. List prices range from $4.76 to $13.75 per 100 rings.

Complete technical specifications are contained in Catalog D785, available free upon request from
Stock Drive Products.

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