A-III-5CamFollower PreloadpadModel:PRP A-III-5.1StructureandCharacteristics d a Theouterringofthebearingfunctionsasarolling ring(Fig.III-5?/span>1).Thisrollingringisthickandtough. Therollersarecrownedneedlerollers,andhavea largeloadcarryingcapacity.Thisprovideshigh impactloadresistance.Thesurfaceofthestudis core-hardenedtoprovidedurabilityagainstwear,and toughness. A L s Rollingring Stud Oilhole 252 Unit:mm Slotforscrew ModelNo. Applicablelinear rollerbearing hmin HeightCompressLoadwhen (no-load)edheightfully hmaxhmincompressed (N) W L d a b s Hex. Socket capscrew driver Needlerollerbearing Fig.III-5.1StructureofCamfollower PRP14×53 PRP19×69 LRB14×53 LRB19×69 10.23 11.53 9.53 11.10 1570 2650 26 30 72 96 φ4.5 φ4.5 62 86 14 18 M3×16 M3×19 A-III-5.2Types PRP29×92 LRB29×92 13.13 12.70 6450 41 120 φ4.5 110 27 M3×25 (1)Bearingmodels PRP38×132 LRB38×132 16.28 15.88 12000 51 157 φ4.5 147 35 M5×38 Therearefourmodels:With/withoutaretainerand oil/greaselubricant(TableIII-5?/span>1). TableIII-5.1.Bearingmodels Bearingmodel FCR FCRS FCJ FCJS Description Fullcomplementofrollers,noseal (oilissuppliedlater) Fullcomplementofrollers,withseal (greaseissealedin) Withretainer,noseal(oilissuppliedlater) Withretainer,withseal(greaseissealedin) A251 A252 | 