Page 4 of Heim Rod Ends and Sphericals by RBC Bearings

h rod ends eim rod ends and spherical plain bearings are intended for linkage applications where a bearing must accommodate significant misalignment while spherical plain bearings offer flexibility in housing and mounting design the user bears the responsibility for housing design and the cost of housing manufacture rod ends offer greater mounting convenience and provide a compact lightweight economical design alternative to the spherical plain bearing heim bearings company offers the industry s widest selection of rod end types and sizes rod end grades heim rod ends are offered in four grades precision commercial aircraft and military precision rod ends are manufactured to tight tolerances for applications requiring improved linkage accuracy and reduced looseness commercial rod ends are produced using standard materials and manufacturing methods and are an economical choice for industrial applications aircraft rod ends use premium materials and have magnafluxed rod end bodies originally intended for aircraft applications aircraft rod ends are used in many industrial applications where a high degree of reliability is required military rod ends are produced in strict accordance with all applicable military specifications and are typically used in military and commercial aviation applications or when mil-spec approval is required precision rod ends grade hm and hf four piece precision rod ends use brass race rod end construction heim offers three basic rod end constructions the four piece rod end uses race inserts typically of brass to provide lubricity in the bearing area this design offers reduced internal clearance and provides smoother operation it is ideal for dynamic applications the two piece rod end uses a rod end body which is formed around a spherical ball the comparatively heavy cross section of the rod end body in the two piece design provides high strength this makes the two piece rod end ideal for highly loaded static applications where high strength is required the cartridge type rod end consists of a spherical plain bearing mounted in a rod end body this design allows the optimum selection of materials for ball race and rod end body the cartridge type rod end can also accommodate a ptfe liner for selflubrication this design is best suited for aircraft and military applications where material selection is a primary design consideration inserts for lubricity and clearance control they are produced to tight tolerances for applications requiring a more precise rod end for example a linkage where positioning accuracy is essential these rod end bodies and balls are plated for corrosion resistance series bhm hfx g and hmx g four piece precision extra capacity rod ends are the high strength series intended for more heavily loaded static and dynamic industrial applications these rod ends have heat treated bodies for increased strength and aluminum bronze race inserts for high bearing capacity the rod end bodies are protective coated for corrosion resistance and the balls are chrome plated for superior wear and corrosion resistance series bhm male and series hfx g female have common thread sizes series hmx g male have oversized shanks for additional shank strength ·series hm and hf pages 4-5 ·series bhm hfx g and hmx g pages 6-7 heim unibal® rod ends rod end quick selection guide series size range spherical bearings product features precision grade brass inserts four piece construction precision grade aluminum bronze inserts high strength body four piece construction commercial grade brass inserts four piece construction commercial grade two piece construction commercial grade self lubricating thermoplastic race maximum temperature 125°f customer benefits low friction long dynamic life smooth feel good conformity high capacity version common applications control linkages for reduced play accelerator linkages heavy duty applications hm hf 3/16 to 1 bhm hfx g hmx g 1/4 to 3/4 self-lubricating rods ends heim produces metal-to-metal rod ends and self-lubricating rod ends all metal-tometal rod ends including brass insert four piece types require regular lubrication this can be accomplished by splash or immersion oil lubrication or by greasing through optional lubricators grease fittings self-lubricating types are used where relubrication is not practical or in applications where relubrication is not desirable such as on food processing machinery or in clean environments heim self-lubricating rods ends are available with bonded ptfe fabric liners or with molded engineered thermoplastic race inserts sleeve bearings hm c hf c 3/16 to 3/4 m cr f cr 3/16 to 3/4 low friction long dynamic life smooth feel good conformity high loads reversing loads shock loads cost effective maintenance free packaging machine linkages ball bearings brake and clutch pedals for heavy machinery satellite dish controls food processing paper machinery bus door closures cmhd cfhd 3/16 to 3/4 2

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