specialty ball bearings er series ball bearings er series ball bearings an industry standard are used in demanding applications such as · · · · · cardboard/packaging machinery paper/printing machinery carpet tufting/manufacturing general conveyor equipment pumps/blowers er series features and benefits · exclusive heavy duty dl seals permanently sealed and prelubricated for long life steel trash guard and inner ring labyrinth groove provide superior protection of sealing member better protection in wet/moist environments optional low-torque seal is available · two lubrication holes allow for re-greasing · two knurled cup point set screws offer excellent resistance to loosening under vibratory conditions · fully ground sae 52100 chrome alloy steel races · black oxide finish provides added corrosion resistance · interchanges with sealmaster® fafnir and mb/rexnord er series 800.390.3300 www.rbcbearings.com
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material inner and outer ring 52100 hardened ground black oxide finish balls chrome retainer nylon seals nitrile/crs snap ring crs item rbc er10 rbc er12 rbc er16 rbc er19 rbc er20 rbc er23 rbc er24 rbc er31 rbc er35 shaft dia 5/8 3/4 1 1 1 1 1 1 2 3/16 1/4 7/16 1/2 15/16 3/16 a 1.8504 1.8504 2.0472 2.4409 2.8346 2.8346 3.1496 3.5433 3.9370 b 1 7/32 1 7/32 1 3/8 1 1/2 1 11/16 1 11/16 1 15/16 2 1/32 2 3/16 c 13/32 13/32 33/64 5/8 11/16 11/16 3/4 3/4 7/8 d 13/16 13/16 55/64 7/8 1 1 1 3/16 1 9/32 1 5/16 e 31/64 31/64 39/64 11/16 3/4 3/4 29/32 29/32 31/32 f 1 7/64 1 7/64 1 21/64 1 9/16 1 13/16 1 13/16 2 3/64 2 15/32 2 23/32 g 9/64 9/64 3/16 7/32 7/32 7/32 1/4 19/64 19/64 h 3/64 3/64 3/64 1/16 1/16 1/16 1/16 3/32 3/32 k 3/32 3/32 3/32 1/8 1/8 1/8 1/8 1/8 1/8 j m radius 0.040 0.040 0.040 0.040 0.040 0.040 0.062 0.062 0.080 o 0.094 0.094 0.141 0.188 0.219 0.219 0.203 0.187 0.281 p 2 1/16 2 1/16 2 17/64 2 21/32 3 5/64 3 5/64 3 13/32 3 25/32 4 3/16 set screws 10-32 10-32 1/4-28 1/4-28 1/4-28 1
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recommended relubrication intervals hours ambient temperature size rbc rbc rbc rbc rbc rbc rbc rbc rbc material handling industry er10 er12 er16 er19 er20 er23 er24 er31 er35 1000 rpm 21000 18000 17000 16000 16000 15000 15000 14000 14000 5000 rpm 9000 7000 6000 5000 5000 4000 3000 2000 1500 maximum recommended torques holo-knurl® point set screws nominal size 10 1/4 5/16 3/8 max torque inch-lbs 34 78 156 273 recommended shaft tolerances for light medium duty applications nominal shaft-size 5/8 to 1-15/16 in 2 to 3 in shaft tolerance 0.0000 to 0.0005 in 0.0000 to 0.0010 in paper/printing industry recommended housing fits bearing number outside diameter of bearing min max rotating housing diameter min resultant fit tight stationary housing diameter min max resultant fit loose tight 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 max loose rbc er10 1.8499 1.8504 rbc er12 1.8499 1.8504 rbc er16 2.0466 2.0472 rbc er19 2.4403 2.4409 rbc er20 2.8340 2.8346 rbc er23 2.83
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innovation commitment quality rbc has been producing bearings in the usa since 1919 in addition to unique custom bearings rbc offers a full line of standard industrial and aerospace bearings including spherical plain bearings radial angular contact extended inner ring high misalignment quadlube® impacttuff® spreadlock® seal crosslube® duralube® milltuff® bearings and self-lubricating bearings available in inch and metric sizes rod ends commercial and industrial precision mil-spec series self-lubricating and aircraft heim® unibal® and spherco® brands available in inch and metric sizes thin section ball bearings standard cross sections to one inch sizes to 40 inches stainless steel and other materials are available seals are available on all sizes and standard cross sections ball bearings precision ground semiground unground high loads long life smooth operation nice® brand is offered in caged and full complement configurations self-lubricating bearings radial thrust rod ends spherical b
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