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Tapered roller bearing single cone (inner ring with rollers and cage) for a 2-11/16 in shaft, 2.0350 in inner-ring width, imperial 5500 series. Mates with the 5535 cup. Cone only, no cup included. One piece.
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$51.34
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| MFR / Brand | FAG |
|---|---|
| MPN | K5557 |
| Model | K 5557 |
| Bearing Type | Tapered Roller Bearing Cone |
| Condition | New – Open box |
|---|---|
| Base Number | 5557 |
| Industry Terms | taper roller cone, inch series taper bearing, inner ring assembly, cone and rollers, K-prefix cone |
| Common Misspellings | K5575, K-55-57, 5575, K5557A, KS557 |
| Application Types | Wheel ends, gear drives, roll necks, heavy machinery, industrial maintenance |
| Condition Note | Made In Germany, Box Opened For Pictures, We Have The Parts To Make Complete Sets Or Assemblies For Any Part Number, Contact Us |
| Bore Shaft Size | 2.6875 in / 2-11/16 in (68.26 mm), straight bore |
| Mpn Variants | K5557, K-5557, K 5557, 5557, 5557-2, FAG K5557 |
| Compatible With Replaces | Single-row inch tapered roller assemblies built on the 5557 cone with a 5535 cup |
| Number Of Rows | 1 |
| Snap Ring Included | No |
| Design Units | Imperial |
| Bearing Material | Case-carburised bearing steel |
| Part Number | K5557 |
| Cross Reference 1 | 5535 cup — the matching cup for this cone (4.8125 in OD, 1.4375 in wide) |
|---|---|
| Cross Reference 2 | Timken 5557 tapered roller cone |
| Cross Reference 3 | SKF 5557 tapered roller cone |
| Cross Reference 4 | Koyo 5557 tapered roller cone |
| Cross Reference 6 | Bower 5557 tapered roller cone |
| Cross Reference 7 | 5557/5535 complete cone-and-cup set designation |
| Cross Reference 8 | Timken 5557-2 packaging variant |
A FAG K5557 tapered roller bearing single cone — the inner ring complete with tapered rollers and cage. The cup (outer race) is a separate part number and is not included.
FAG uses a K prefix on inch-series tapered roller cones, so K5557 is FAG’s build of the industry 5557 cone. The bare number 5557 is the same part in Timken and general industry nomenclature, and 5557-2 is a packaging variant. Because inch tapered bearings are quoted cone-and-cup, the assembly you are most likely looking for is 5557/5535.
Bore (d): 2.6875 in (2-11/16 in) / 68.26 mm, straight bore
Inner ring width (B): 2.0350 in / 51.7 mm
Cone large-end outside diameter: approximately 3.69 in / 93.73 mm
Matching cup: 5535, 4.8125 in OD, 1.4375 in wide
Configuration: single row, open, no seal, no snap ring
This is a notably wide cone for its bore — 2.035 in of inner-ring width on a 2.6875 in bore — which is what gives the 5500 series its high thrust capability and long roller contact. That geometry suits heavily loaded, relatively slow shafts: trailer and truck wheel ends, industrial gear drives and roll necks. The long roller also means setting matters more, not less: a taper this wide is unforgiving of sloppy endplay.
One cone assembly ships. No cup, no spacer, no seal. Not a matched pair.
Press or heat the cone onto the shaft, driving only on the backface, then set endplay or preload against the cup once the cup is seated in its housing. Do not mate a new cone with a used cup; their wear tracks are matched to each other.
5557 is an industry base number shared across manufacturers, so Timken 5557, SKF 5557, Koyo 5557, NTN 5557 and Bower 5557 are the same envelope. FAG’s own listing carries the K prefix; a bare 5557 on a carton is the same cone. The mating cup is 5535 in all of these schemes.
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Our team can locate, cross-reference, and source all parts.
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