Bearing unitBearing mean diameterCalculation factorsSizedmeY1Y2–mm–SYNT 35FYNT 3553,50,312,23,3SYNT 40FYNT 40600,282,43,6SYNT 45FYNT 45650,262,63,9SYNT 50FYNT 50700,242,84,2SYNT 55FYNT 5577,50,242,84,2SYNT 60FYNT 60850,242,84,2SYNT 65FYNT 6592,50,2

Shaft diameterTotal tolerancenominalfor coaxiality deviationand runoutd1Kd1overincl.overincl.maxmmin.mmin.V-rings, VR1/VA and VR2/VS designs9,50.3740,40.0169,519,50.3740.7680,60.02419,5380.7681.4960,90.03438681.4962.6771,10.043681052.6774.1341,40.055

IllustrationDesignationCharacteristicsPPMPTFE polyamide bushingsCost-effective; self-lubricating and maintenance-free; designed for dry operations, however, a lubricant can improve the performance;available in metric sizes as straight or flanged bush

SizeDimensionsTighteningtorqueStandard1)mes –mmNm–M 6x15,2111031M 8x1,256,814,41381M 10x18,417,816152 M 12x1,510,82018222M 16x1,514,826,824582M 18x1,515,829,627872 M 20x1,51833301202M 24x1,521,539,5362202M 30x1,525,650,94645021)1 = EN ISO 4032,

Surface CharacteristicSymbolTolerancePermissible deviations Bearings to tolerance classzoneP4, P4A,P4C, SPP2, PA9A,UPCylindrical seatTotal radial run-outt3IT2/2IT1/2Flat abutment Total axial run-outt4IT1IT0Angularityt2IT3/2IT2/2

PropertySKF greases (designation)for sliding contact surface combinationssteel/steelsteel/bronzesteel/PTFE FRPsteel/PTFE FRPLGHB 2LGMT 3LGEP 2LGGB 21)ThickenerCalcium sulphonate complex soapLithium soapLithium soapLithium/calcium soapBase oilMineral

Bore diameterDimensionsdbKmmmm503,72553,72603,72653,72705,53755,53805,53855,53905,53955,531005,531055,531105,531205,531308,34,5

dtΔds, tΔdmptΔD2stΔTstSia1)≤ULULULmmµmµmµmµm18300–40–130–1,52,530500–50–150–1,52,550600–50–180–1,52,5Tolerance symbols and definitions → table 1)Axial run-out of a single bearing. The tolerance for the rectangularity of the flanget

Inside chamferOutside chamferHoleCross section diameterCSChamfer lengthCfromincl.min.mmmm11,51,51,6222,432,53,534,53,555,74,568,45,5

Bore diameterRadial internal clearancedC2NormalC3overincl.min.max.min.max.min.max.mmμmμmμm2.51283232686810412201040408282124203512505010010015035601560601201201806090187272142142212901401885851651652451402001810010019219228420024018110110214214318