SKF bearings that meet SKF Explorer performance specifications are identified with a suffix E that comes standard with case hardened steel inner and outer rings. The spiral groove on the hole is also a standard structure. Therefore, the relevant suffixes (HA1 and G) are not used for such SKF bearings.
A, B, C or a combination of these letters: a modified interior design
E SKF Explorer bearing without spacer
EX SKF Explorer bearing with spacer
E(X)1 SKF Explorer bearing with hydrogenated nitrile rubber (HNBR) seal, other specifications are the same as VA901
E(X)2 SKF Explorer bearing with hydrogenated nitrile rubber (HNBR) seal, other specifications are the same as VA902
E(X)3 SKF Explorer bearing with hydrogenated nitrile rubber (HNBR) seal, other specifications are the same as VA903
G bearing bore with spiral groove
HA1 case hardened steel outer ring and inner ring
HA4 case hardened steel outer ring, inner ring and roller
HE1 vacuum remelted steel outer and inner rings
C... Combined with the same number, represents the average value of the axial clearance in μm.
The VA901 bearing has fluoro rubber (FKM) seals on both sides and a seal ring between the inner rings to replenish grease through the outer ring.
The VA902 bearing has fluoro rubber (FKM) seals on both sides and a seal ring between the inner rings. It cannot be filled with grease.
VA903 is the same as VA901, but there is no seal between the inner rings.
The VA919 bearing has fluoro rubber (FKM) seals on both sides, which can be filled with grease through the outer ring. There are no oil grooves on the inner ring side, but there are annular grooves in the holes and oil holes on the guide ribs.
VA941 bearing with fluoro rubber (FKM) seals on both sides, can not replenish grease through the outer ring, oil groove on the inner side of the inner ring, and annular groove and oil hole on the outer side between the inner rings
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