Operating temperatureTemperature factor b2overincl.°C--1201,01201600,91601800,8180-Contact the SKF applicationengineering serviceThe temperature limits for integral seals (table 1) and SKF greases (table 2) must also be considered.

pv operating ranges:IRange where rating life equation is validIIQuasi-static range; before using the rating life equation, contact the SKF application engineering serviceIIIPossible range of use, e.g. with very good lubrication; before using the rati

Cage typeWindow­-typeWindow­-typeWindow­-typeMaterialSheet steel or machined steelSheet steel or machined steelGlass fibre reinforced PA66Suffix––TN

1)Ethylene-propylene rubber for reference only – not common for hydraulic cylinders 2)For filled PTFE, compatibility of filler must be considered separately (e.g. bronze not recommended for water-based fluids). 3)Exposure to water-based fluids or mo

Bearing typeCorrection factor C2Speed factor A [106 mm/min]0,50,711,5Angular contact ball bearings33,532,8Double directionangular contactthrust ball bearings3–––Cylindrical roller bearings3332,5

dk=outside diameter of the calibrating mandrelB=bushing widthD=bushing outside diameterDG=housing outside diameterMinimum hardness: 50 HRCSurface roughness: Rz ≈ 1 μm

Bearing seriesMaximum ndm value1)Light load(P ≤ 0,067 C)Normal load(P ≤ 0,125 C)-mm/min222, 239250 000200 000223, 230, 231, 232, 240250 000150 000241150 00080 0001)n   = rotational speed [r/min]     dm = bearing mean diameter [mm] 

Bearings indiameterseriesSKF standard greases in bearings with outside diameterD ≤ 30 mm30D ≤ 62 mmD62 mmd10 mmd ≥ 10 mm8, 9LHT23LT10MT47MT330, 1, 2, 3MT47MT47MT47MT33

Machine typeRequisite basic rating life L10hOperating hoursMachines used for short periods or intermittentlyAgricultural and ancillary transport equipment1 000 ... 2 000Other agricultural equipment4 000 ... 8 000Machines for use 8 hours a day, but no

(honed or roller burnished tubes)Thermoplastics, rubbers and PTFE materialsRa0,05 to 0,2 µm(2 to 8 µin.)Rz0,4 to 2 µm(15 to 80 µin.)Rmax0,4 to 2,5 μm(15 to 100 μin.)Rmr50 to 95%(cutting depth 0,5 Rz based on cref = 0%)