HA3 Case hardened inner ring K Tapered bore, taper 1:12 K30 Tapered bore, taper 1:30 VA405 Bearing for vibrating applications VA406 Bearing for vibrating applications with PTFE-coated bore VE553(E) VG186 Outer ring with three equallyspaced threaded holes inboth side faces to take hoisting tackle; the E indic- ates that appropriate eye bolts are supplied with the bearings Hardened cages VE552(E) Outer ring with three equallyspaced threaded holes in one side face to take hoisting tackle; the E indicates that appropriate eye bolts are supplied with the bearings VQ424 Running accuracy betterthan C08 VT143 Grease fill 25 to 35 % withSKF grease LGEP 2 W No relubrication facility inouter ring W20 Three lubrication holes inouter ring W26 Six lubrication holes in innerring W33 Annular groove and threelubrication holes in outer ring W77 Plugged W33 lubricationholes W509 W26 + W33

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Product information 235220

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Recommendations Case hardened inner ringwith helical groove in bore

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Product data Page ............. 3Page .............18 Bearing data 35 C2

Supplementary designations

Radial internal clearancesmaller than Normal The designation suffixes used to identi-fy certain features of SKF spherical roller bearings are explained below. The suffixes used to identify bearing (and cage) design, e.g. CC or E, are not included here as they are ex- plained under “Designs”. C3 Radial internal clearancegreater than Normal C4 Radial internal clearancegreater than C3 C08 Increased running accuracyto ISO tolerance class 5

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C083 C08 + C3 C084 C08 + C4 2CS 2CSW Sheet steel reinforced rubbingseals of nitrile rubber (NBR) at both sides of bearing. Grease fill 25 to 35 % with SKF grease LGEP 2.Annulargroove and three lubrication holes in outer ring. 2CS + W 2CS5W 2CS2 Sheet steel reinforced rubbingseals of fluoro rubber (FPM) at both sides of bearing. Grease fill 70 to 100 % with a polyurea high temperaturegrease. Annular groove and three lubrication holes in theouter ring. 2CS5 + W 2CS2W 2CS2 + W 2CS5 Sheet steel reinforced rubbingseals of hydrogenated nitrile rubber (HNBR) at both sides of bearing. Grease fill 70 to 100 % with a polyurea high temperature grease. Annular groove and three lubrication holes in the outer ring.