Page 1 of Needle Roller Press Bearings by QBC Quality Bearings & Components

bearing finder needle roller pressbearings installation 1 punch or drill and ream a hole of diameter a in panel as specified in the design parameters table panel do not deburr or break edge of hole 2 place bearing assembly in hole the slight interference fit assures centering the assembly in the mounting hole 3 using an anvil with diameter n a minimum depth of o and a punch diameter of p press the bearing assembly into the panel by constantly applying a force of f per the table until the assembly is flush with the panel surface do not use hammer blows tooling and installation data c l installation force min dist nominal f centerline shaft to panel cold-rolled half-hard 003 diameter steel aluminum 000 edge tons tons self-aligning .515 1/8 .488 5.0 1.5 375 .625 .640 3/16 .607 5.5 1.5 .453 .734 .828 1/4 .768 5.5 2.0 .500 .922 5/16 .828 .768 5.5 2.0 .500 .922 3/8 .828 .768 5.5 2.0 .500 .922 1/2 1.078 1.000 6.0 2.5 .750 1.125 5/8 1.270 1.000 8.0 4.0 .750 1.375 nonaligning 1/8 .386 .438 .250 2.0 1.0 .484 3/16 .515 .625 .375 5.0 1.5 .625 1/4 .640 .813 .453 5.5 1.5 .734 5/16 .640 .813 .453 5.5 1.5 .734 3/8 .828 .688 .500 5.5 2.0 .922 1/2 .890 .688 .625 6.0 2.5 .938 9/16 .890 .688 .625 6.0 2.5 .938 shaft recommendations shafts should be hardened to rc 58 with a 16 µin finish shaft ends should have radii or be chamfered n anvil dia o min anvil depth p min punch dia shaft diameters self-aligning nominal shaft diameter 1/8 3/16 1/4 5/16 3/8 1/2 9/16 5/8 minimum diameter .1251 .1876 .2505 .3127 .3754 .5001 .6251 minimum diameter .1254 .1879 .2508 .3132 .3759 .5006 .6256 nonaligning maximum diameter .1247 .1872 .2497 .3120 .3745 .4995 .5620 maximum diameter .1250 .1875 .2500 .3125 .3750 .5005 .5625 new home page clpton inch 129

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