Machine Design

Extended inner-ring bearings

Thirty-four ABEC 3 extended inner-ring bearings are for use in optical mounts, belt tensioners, linear positioners, and sensitive measuring instruments.

Designated the A 7Y55 Series, the stainless-steel bearings are stocked with no-shield and double-shield configurations and with grease to meet MIL-G-L6085A, MIL-G-23827A, or Beacon 325 commercial standards. Designed for 0.0469 to 0.3125-in. shafts, the bearings have 0.1562 to 0.500-in. ODs and 0.002/0.005-in. radial play. Stock Drive Products, Sterling Instrument, 2101 Jericho Turnpike, New Hyde Park, NY 11042, (516) 328-3300, sdp-si.com

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