SKF bearing four row tapered roller bearing model explanation - bearing knowledge

SKF bearing four row tapered roller bearing type prefixes and suffixes to explain the following conform to SKF Explorer performance specifications of SKF bearing use suffix E identification, standard equipped with surface hardening steel inner ring and outer ring. Hole on the spiral groove is also a standard structure. Thus, the suffix ( HA1 and G) Not used to this kind of SKF bearing. The letters A, B, C, or A combination of: the interior design of retrofit E SKF Explorer without spacer ring bearing the EX SKF Explorer bearings with spacer ring E ( X) 1 with hydrogenated nitrile rubber ( HNBR） SKF Explorer bearing seals, and other specifications VA901 E (same X) 2 with hydrogenated nitrile rubber ( HNBR） SKF Explorer bearing seals, and other specifications VA902 E (same X) 3 hydrogenated nitrile rubber ( HNBR） The same number, said the average of the axial clearance, unit is & micro; m。 VA901 bearing on both sides of the fluorine rubber ( FKM) Seals, between the inner ring with seals, but oil supplement with outer ring. VA902 bearing on both sides of the fluorine rubber ( FKM) Seals, between the inner ring with seals, cannot add grease. VA903 same as VA901, but between the inner ring with no fluorine rubber sealing ring VA919 bearings on both sides of the belt ( FKM) Seals, but oil supplement with outer ring, inner ring side without oil groove, but the hole inside the ring groove and oil hole lead guard. VA941 bearing on both sides of the fluorine rubber ( FKM) Seal, don't get fat by outer ring, inner ring within the side grease groove, and the inner ring between the outer ring groove and oil hole radial internal clearance is smaller than regular grade C2 C3 radial internal clearance is greater than the common C4 radial internal clearance is greater than the C3 radial internal clearance is greater than the C4 C08 C5 by improving the operation of the accuracy accords with ISO standard tolerance level 5 C083 C08 + C3 C084 C08 + C4 2 cs bearing on both sides of the strip steel skeleton nitrile rubber ( NBR） Contact seal. Outer ring with annular groove and three lubrication hole, a polymer with coverage. According to the table, with extreme pressure grease lubrication. 2 cs2 bearing on both sides of the strip steel skeleton of fluorine rubber ( FPM) Contact seal. Outer ring with annular groove and three lubrication hole, a polymer with coverage. With high temperature polyurea grease lubrication cs5 bearing on both sides of the strip steel skeleton of hydrogenated nitrile rubber (2 HNBR） Contact seal. Other specifications the same as the 2 cs2 HA3 surface hardened steel inner ring K cone hole, hole taper 1:12 for K30 cone, cone for 1:30 P5 size and running accuracy in accordance with ISO standard P6 tolerance level 5 dimensions and accuracy in accordance with ISO standard tolerance level 6 P62 P6 + C2 VA405 used in the application of vibration with surface hardening of the bearing cage VA406 VA405 and PTFE hole VE552 ( E) Outer ring one side, with three intervals of the same thread hole in order to use the hoist; Provide appropriate eye bolts VE553 (E said bearing E) Same as the VE552, but with screw thread hole on two sides of the stamping VG114 surface hardening steel cage VQ424 running accuracy is higher than C08 VT143 use extreme pressure grease filling according to the table. W outer ring without annular groove and lubrication hole W20 outer ring with three lubrication hole W26 inner ring with six lubrication hole W33 outer ring ring groove and three lubrication holes W77 plug-in W33 lubrication hole W513 W26 + W33 235220 hole with a helical groove surface hardened steel inner ring