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Super Precision Thin-Section Instrument Ball Bearings Catalog - 38 Pages

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Super Precision Thin-Section Instrument Ball Bearings Catalog

Catalog excerpts

Super Precision Thin-Section Instrument Ball Bearings A TIMKEN COMPANY SUBSIDIARY

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Timken Super Precision Thin-Section Ball Bearings for Aerospace & Instrument Applications Timken Super Precision leads the industry in the development and widespread acceptance of standard and special thin- section, high-precision ball bearings. Thin-section bearings, with their large complements of small diameter balls, provide greater stiffness and lower torque while permitting a significant reduction in weight and space when compared to standard section bearings. These advantages have found wide acceptance in many critical applications including ordinance and aerospace guidance systems,...

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SELECTOR GUIDE Part Numbering S = AISI 440C Stainless Steel This number designates the basic envelope dimensions of the bearing. For all Thin Section and Torque Tube bearings, the size code is based on 1/16" increments for both bore and OD. Example: 1724 - this bearing has a bore of 17/16" and B = Fractured outer ring M = Angular contact non-separable, phenolic retainer MC = One-piece snap-type phenolic retainer MCK = One-piece molded snap-type Minapar II retainer MR = Angular contact, non-separable, full ball complement MS = Angular contact, non-separable, steel retainer MSO = Angular...

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DESIGN CONFIGURATIONS Conrad Assembly MPB Thin section and Torque Tube Conrad Bearings are available in sizes up to 6.0" OD. The ball grooves are honed for precision, low torque, and quiet operation. The deep groove construction allows for handling of radial, thrust and combination loads. While offered primarily with 440C stainless steel rings and balls and with a one- piece fully machined snap-in phenolic cage, other material and separator options are available for specific application requirements. Some of the more common design variations are discussed below. See pages 10 and 11 for...

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DESIGN CONFIGURATIONS Conrad Assembly Thin Section Series R =The maximum radius of shaft or housing fillet that the bearing corner will C =Dynamic radial capacity @ 33 1/3 RPM for 2500 hours average life (L-10 life Rs = Static radial capacity. Ts =Static thrust capacity. I For larger sizes with OP up to 12", see pages 28-29. Standard Specifications MPB manufactures Thin Section and Torque Tube bearings according to AFBMA specifications, where applicable. Toleran- ces vary with the size and precision level, and are shown on page Radial Play Standard radial play is defined on page 18. An...

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DESIGN CONFIGURATIONS Angular Contact MPB Thin Section and Torque Tube Angular Contact Bearings have been developed to offer a maximum ball complement with a one piece precision machined retainer and are available in sizes up to 6.0" OD. The ball grooves are honed for precision, low torque, and quiet operation.The large ball complement, combined with a relatively high contact angle, maximizes axial stiffness. Rings and balls are normally 440C stainless steel, but other material options are available for specific applications. Some of the more common design variations Torque Tube Series R...

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DESIGN CONFIGURATIONS Angular Contact Thin Section Series R =The maximum radius of shaft or housing fillet that the bearing corner will clear. C =Dynamic radial capacity @ 33 1/3 RPM for 2500 hours average life (L-10 life is 500 hours). Rs = Static radial capacity. Ts =Static thrust capacity. For larger sizes with OP up to i2", see pages 28-29. Standard Specifications MPB manufactures Thin Section and Torque Tube bearings according to AFBMA specifications, where applicable. Toleran- ces vary with the size and precision level, and are shown on page Radial Play Standard radial play is defined...

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DESIGN CONFIGURATIONS Fractured Race MPB Fractured Race Bearings have outer races that are radially frac- tured in one location. This permits the race to be opened for com- plete flexibility in the choice of ball complement and separator in a deep groove radial bearing. High strength, stainless steel holding bands are then pressed on the ground shoulders to retain tight abut- ment and perfect alignment of the fractured surface during handling and normal operation. Fractured race bearings are available in both full ball complement and retainer configurations. Some of the more common design...

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DESIGN CONFIGURATIONS Fractured Race Thin Section Series R =The maximum radius of shaft or housing fillet that the bearing corner will clear. * For Phenolic retainer configurations see the Angular Contact series for ball C =Dynamic radial capacity @33 1/3 RPM for 2500 hours average life (L-10 life is complement and C and Rs ratings. For other options consult the factory. 500 hours). ** Load ratings shown for full ball complement bearings. Rs = Static radial capacity. Ts = Static thrust capacity. No values are shown since fractured bearings are designed primarily for radial or combination...

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DESIGN CONFIGURATIONS Configuration Availability • Standard configurations available Please Note: - For other available options refer to pages 15 and 16. -All shielded bearings also available with seals. MINIATURE PRECISION BEARINGS

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DESIGN CONFIGURATIONS Configuration Availability • Standard configurations available PRECISION THIN SECTION BEARINGS Please Note: -For other available options refer to pages 15 and 16. -All shielded bearings also available with seals.

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DESIGN CONFIGURATIONS Special Designs Integral Bearing Assemblies HOW CAN MPB HELP YOU SOLVE YOUR BEARING PROBLEM? • Let MPB look at the proposed design in the early stages so that the bearing can be sized properly and the most economical bearing assembly used. • Where possible, use standard catalog bearings when performance and cost objectives can be met with a minimum amount of compromise in overall requirements. • Be alert to the possibilities of making substantial savings and Improvements In performance through the use of special bear- ings where unusual features can be Incorporated by...

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DESIGN CONFIGURATIONS Special Designs Special Bearing Assemblies Special bearing assemblies have been a large part of MPB capabilities for many years. • Non-standard bore, OD and/or width. • Flanges, threaded shoulders, tapped holes and notches. • Special internal geometry—race curvature, ball size, four point contact and integral shields. • Combination of components to form integral assemblies. Double row outer, cartridge bearing with separated inners for Individually double shielded, preloaded pair of bearings with external spring preloading. Used as computer disc drive ac- special...

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