Bearing typeNeedle Roller
Roller width7/16"
Roller materialAlloy Steel
Bearing materialAlloy Steel
Standard logoabma.png
Number of bearings1
Stud length3/4"
Roller dia.5/8"
Stud materialCarbon Steel
Static load capacity2500 lbs.
Thread length0.312"
Dynamic load capacity1210 lbs.
Stud dia.0.312"
Hex drive size1/8"
Stud diameter5/16"
Stud thread length5/16"
Seal typeContact
System of measurementImperial
Stud thread size5/16"-24
Rolling element rows1
Minimum temperature-30°F
FeaturesRollers And Outer Races Are Identical To The Standard Cr Series, The Hex Head Heavy Stud Series Have A Larger Diameter Stud And Are Recommended For Applications With High Running Loads And/Or Heavy Shocks Where Deflection Should Be Held To A Minimum
Maximum temperature250°F
Dynamic radial load capacity1210 lbf.
Static radial load capacity2500 lbf.
Bearing material gradeAISI 52100
ClosureDouble Sealed
Drive locationStud
Drive typeHex Socket
Duty typeHeavy
Face designHex Socket
Roller head typeFlat
Roller material gradeGrade 52100
Seal materialMolded Acetyl
StandardsABMA
Stud typeConcentric
Closure typeSealed
SeriesHr Series Heavy Stud
Head typeHex Head
Roller shapeFlat
Male thread size5/16-24
Manufacturer catalog numberHR-5/8-XB
Manufacturer upc number651041002760
Number of rows1
Oem part numberHR-5/8-XB
Material52100 or Equivalent
Radial dynamic load capacity1210 lbf
Roller diameter5/8″
Roller profileFlat
Bearing elementNeedle Rollers
Finish coatingBlack Oxide
General informationHeavy Stud type cam follower Cylindrical outside diameter Needle roller Hex hole
Thread size5/16-24
Product typeCrowned & Flat Cam Followers
Roller typeCylindrical
Dynamic load rating1210 lbf
Inch/metricInch
Thread typeUNF
Static capacity2500 lbf
Threads per inch24
Ean or upc651041002760
EnclosureSealed
End typeHex Hole
(t) thread u.n.f. class 2a5/16-24
Thread u.n.f. class 2a5/16-24
Roller width tolerance+.000/-.005
Roller o.d..625
Eff. thread min.5/16
Recom. torque (lbs-in)75
Recom. bore tolerance+.0005/-.0000
Recom. bore.3125
Smith bearing numberHR-5/8-XB
(e) min. boss dia.23/64
Max. static capacity (lbs)2500
(d) roller o.d. tolerance+.000/-.001
(b) roller width tolerance+.000/-.005
(a) stud dia. tolerance+.001/-.000
Additional note1Cannot be relubricated
(s) eff. thread min.5/16
Basic dynamic rating (lbs)1210
(m) stud length3/4
(a) stud dia..3125
(b) roller width.437
(d) roller o.d..625
Min. boss dia.23/64
Stud dia. tolerance+.001/-.000
Roller o.d. tolerance+.000/-.001