{"product_id":"qj306-tvp-fag-four-point-contact-ball-bearing-30x72x19mm","title":"QJ306-TVP-FAG Four Point Contact Ball Bearing 30x72x19mm","description":"FAG Four point contact bearings are similar in their structure to double row angular contact ball bearings, but are considerably narrower in an axial direction due to only one raceway groove. Since the centres of curvature of the arc-shaped raceways on the inner ring and outer ring are offset relative to each other, the balls are in contact with the bearing rings at four points under radial load. For this reason, four point contact bearings are only used under predominantly axial load.\u003cbr\u003e\n\u003cbr\u003e\nIf predominantly radial load is present, four point contact bearings should not be used due to the higher friction in the four point contact.\u003cbr\u003e\n\u003cbr\u003e\nOne of the two bearing rings, normally the inner ring, is split for assembly reasons in order to allow filling with the balls. As four point contact bearings are often fitted without radial retention, the outer rings can be designed as an option with retaining slots to prevent rotation.\u003cbr\u003e\n\u003cbr\u003e\nA main area of application is in gearbox engineering, where axial loads are present in both directions and close axial guidance is required in conjunction with a small bearing width.\u003cbr\u003e\n\u003cbr\u003e\nFour point contact bearings are often combined with a radial bearing and used as an axial bearing with radial clearance in a housing.\u003cbr\u003e\n\u003cbr\u003e\nMain Dimensions \u0026amp; Performance Data\u003cbr\u003e\nd 30 mm Bore diameter\u003cbr\u003e\nD 72 mm Outside diameter\u003cbr\u003e\nB 19 mm Width\u003cbr\u003e\nC r 61,000 N Basic dynamic load rating, radial\u003cbr\u003e\nC 0r 43,000 N Basic static load rating, radial\u003cbr\u003e\nC ur 3,000 N Fatigue load limit, radial\u003cbr\u003e\nn G 13,100 1\/min Limiting speed\u003cbr\u003e\nn ur 7,600 1\/min Reference speed\u003cbr\u003e\n366 g Weight\u003cbr\u003e\n\u003cbr\u003e\nMounting dimensions\u003cbr\u003e\nd a min 37 mm Minimum diameter shaft shoulder\u003cbr\u003e\nD a max 65 mm Maximum diameter of housing shoulder\u003cbr\u003e\nr a max 1 mm Maximum fillet radius\u003cbr\u003e\n\u003cbr\u003e\nDimensions\u003cbr\u003e\nr min 1.1 mm Minimum chamfer dimension\u003cbr\u003e\nD 1 58 mm Shoulder diameter outer ring\u003cbr\u003e\nd 1 44 mm Shoulder diameter inner ring\u003cbr\u003e\na 36 mm Distance between the apexes of the pressure cones\u003cbr\u003e\n35 Degree contact angle\u003cbr\u003e\n\u003cbr\u003e\nTemperature range\u003cbr\u003e\nT min -30 Degree celsius operating temperature min.\u003cbr\u003e\nT max 120 Degree celsius operating temperature max.\u003cbr\u003e\n\u003cbr\u003e\nDesign, bearing outer ring S Standard\u003cbr\u003e\nCage TVP solid cage made of glass-fiber reinforced polyamid PA66\u003cbr\u003e\nTolerance class PN Normal (PN)\u003cbr\u003e\nDimensional \/ heat stabilization S0 Rings dimensional stabilized up to 150degree celsius\u003cbr\u003e\nAxial internal clearance CN Group N (CN)","brand":"FAG","offers":[{"title":"Default Title","offer_id":40933107302490,"sku":"QJ306-TVP-FAG","price":45.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/9684\/2842\/files\/162951.jpg?v=1713341232","url":"https:\/\/bearing-king.co.uk\/products\/qj306-tvp-fag-four-point-contact-ball-bearing-30x72x19mm","provider":"Bearing King","version":"1.0","type":"link"}