Timken MV Series Ball Bearings - 2 Pages

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Timken MV Series Ball Bearings

Catalog excerpts

TIMKEN® MV SERIES BALL BEARINGS IMPROVE MACHINE TOOL PERFORMANCE Timken® MV series machine tool ball bearings deliver improved performance for precision at one million dN. This ball bearing is designed* to operate with low vibration and heat generation, allowing for smooth operation and low noise. Timken reaches beyond standard requirements and imposes tighter tolerances and uniformity that exceed ISO or ABMA standards for its machine tool offering. As a result, MV series bearing tolerances provide the dimensional and Top Performance, Longer Life and Cooler Running running accuracy required for effective control of machine tool spindles and other demanding applications operating up to one million dN. POLYMER CAGE: LESS FRICTION Timken engineers designed a ball-riding polymer cage to help make the Timken® MV series ball bearings smoother, quieter and operate at lower* temperatures. The light-weight polymer cage reduces friction, and therefore runs cooler. In addition, the new polymer cage specifically supports applications up to one million dN (bore in millimeters times speed in RPM). REDUCED RUN-IN TIME The polymer cage on the MV series bearings reduces friction and temperature. As a result, Timken MV series ball bearings can reach stabilized temperatures sooner, allowing for quicker run-in and set up times. SPECIFY TIMKEN MV SERIES BALL BEARINGS FOR: PRECISION TOLERANCES: Precision tolerances enable consistency across production runs. MV series running tolerances meet or exceed ISOP4/ABEC 7 precision standards. Precision tolerances provide a more consistent preload and contact angle. CONTACT ANGLE OPTIONS: The contact angle options allow for varying application speeds and load requirements, increasing manufacturing flexibility for machine builders. HIGH LOAD CAPACITY: Maximum capacity ball complement increases load-carrying capabilities and improves calculated bearing life. MICRON CODED: Bore and outer diameter (O.D.) codes match and calibrate envelope dimensions for consistent preload and mounting practices. MOUNTING FLEXIBILITY: The MV series bearings are single row, universally ground and preloaded bearings. Operators can use the bearings as a single bearing or in sets. The bearings also can be mounted in several configurations, streamlining inventory. *When compared to previous Timken design. MV NOMENCLATURE Contact Angle: 2 = 15° 3 = 25° No number denotes 0˚ (deep-groove) Other number denotes non-standard Construction: WI ngular contact; low shoulder on outer ring a Precision Class: MV High precision ISO P4/ABEC 7 Cage: PRL olded polymer cage m 2 MV 91 14 WI PRL DUL Series: 9100 xtra-light e 200 ight l Bore Size: 10 = 50 mm (multiply these last two digits by 5 to get bore in millimeters) Preload: Universal Flush Ground SU single bearing DU duplex pairs of bearings TU triplex set of bearings QU quadruplex set of bearings X extra-light L light M medium H he

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(2MV) Load Ratings Bearing Number 2MV or 3MV Speed Rating(Ng) (3MV) Load Ratings Co Static Speed Rating(Ng) (2) Fill weights based upon specific gravity of 0.99. Please contact your Timken sales representative for additional sizes and designs. (Ng) For a single, grease-lubricated, spring-preloaded bearing. This value to be used in permissible operating speed (Sp) calculation. (1) Width tolerance of preloaded bearing set +0.000/-0.254 mm (+0.0000/-0.0100 in.). Ready to learn more about Timken® MV series bearings? Contact your Timken sales representative or visit us online at www.timken.com....

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