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Four-row cylindrical roller bearings with tapered bore

There is relatively little demand for four-row cylindrical roller bearings with tapered bore; this is reflected in the relatively small number of sizes and designs manufactured by SKF. The designs differ principally from those of the four-row bearings with cylindrical bore in that the inner ring is usually in one piece and generally has a taper of 1:12. A few relatively wide bearings have inner rings with a tapered bore of 1:30.

BC4T.1 design

Two outer rings each with three integral flanges. One inner ring. Two roller guided double pronged machined brass cages. With or without annular groove and/or lubrication holes in the outer rings (fig 1).

BC4T.2 design

Two outer rings each with three integral flanges. One intermediate ring between the two outer rings. One inner ring. Two roller guided double pronged machined brass cages. With annular groove and lubrication holes in the outer rings (fig 2).

BC4T.3 design

Two outer rings each with a central integral flange and two loose flange ring; one intermediate rings. One inner ring. Two roller guided double pronged machined brass cages. With or without annular groove and/or lubrication holes in the outer rings (fig 3).

BC4T.4 design

One outer ring with three loose guide rings and two loose flange rings. One inner ring. Two double pronged machined brass cages. With or without annular groove and/or lubrication holes in the outer ring (fig 4).

BC4T.5 design

Two outer rings each with a central integral flange and two loose flange rings, one intermediate ring. One inner ring. Pierced rollers and four steel pin-type cages. With or without annular groove and/or lubrication holes in outer rings (fig 5).

BC4T.6 design

Two outer rings each with a central integral flange and two loose flange rings, one intermediate ring. Two inner rings. Pierced rollers and four steel pin-type cages. With annular groove and lubrication holes in outer rings (fig 6).

BC4T.7 design

Two outer rings each with three integral flanges. One extended inner ring. Two roller guided double pronged machined brass cages. With annular groove in the outer rings (fig 7).

BC4T.8 design

One outer ring with three loose guide rings and two loose flange rings. One extended inner ring with a lead-in. Two double pronged machined brass cages. With or without annular groove and/or lubrication holes in the outer ring (fig 8).
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