Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
1 in stock
Inch tapered roller cone and flanged cup set, 3.2500 in bore, 4.9375 in OD, 5.1211 in flange OD, e 0.42, K factor 1.4, for through-bored housings.
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$67.29

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| MFR / Brand | Timken |
|---|---|
| Model | 27287-B 27620-B |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 3.2500 in |
| OD | 4.9375 in |
| Base Number | 27620-B |
|---|---|
| Mpn Variants | 27287B/27620B, 27287-B 27620-B, 27287B-90047, 27620B, 27620-B |
| Precision Class | Not specified |
| Dynamic Load Rating | 117,000 N |
| Static Load Rating | 178,000 N |
| Series | 27600 |
| Rolling Elements | Tapered Roller |
| Item Weight | 0.80 kg (1.70 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Cross Reference 1 | SKF 27620 B (cup) |
|---|---|
| Cross Reference 2 | NTN 4T-27620B (cup) |
| Cross Reference 3 | Koyo 27620B (cup) |
| Cross Reference 4 | Fersa 27620B (cup) |
| Cross Reference 5 | BCA/Bower 27620B (cup) |
Timken inch tapered roller bearing cone and flanged cup set in the 27600 series. Bore Diameter: 3.2500 in (82.550 mm). Outside Diameter: 4.9375 in (125.413 mm). Inner Ring Width B: 1.0000 in (25.400 mm). Outer Ring Width C: 0.7813 in (19.845 mm). Outer Ring Flange Outside Diameter D1: 5.1211 in (130.076 mm). Outer Ring Flange Width C2: 0.1875 in (4.763 mm). Number Of Rows: 1. Rolling Elements: Tapered Roller. Bore Type: Straight. Precision Class: Not specified. Item Weight: 0.80 kg (1.70 lb).
27600 series — the Timken inch tapered roller family that fixes the cup outside diameter and the raceway angle for this size band.
B on the cup — the flanged cup execution. The integral flange locates the cup axially against the housing face and aligns seals in a through-bored housing, so the housing needs no machined shoulder.
-90047 — the Timken complete-assembly order number for the matched cone and cup as supplied together.
Dynamic Load Rating: 117,000 N (26,300 lbf) at 1 million revolutions. Static Load Rating: 178,000 N (39,900 lbf). Dynamic Radial Load Rating C90: 30,400 N (6,830 lbf). Dynamic Axial Rating Ca90: 21,600 N (4,860 lbf). e Factor: 0.42. K Factor: 1.4. Y Factor: 1.44. Geometry Factor Cg: 0.120. G1 Factor: 98.2. G2 Factor: 41.8. The e factor of 0.42 sets the thrust-to-radial ratio above which the thrust term governs bearing life, and a K factor of 1.4 puts this size in the steeper half of the inch range, favouring combined loading.
Effective Center Location: 0.02 in (0.5 mm). Max Shaft Fillet Radius: 0.140 in (3.600 mm). Max Housing Fillet Radius: 0.06 in (1.5 mm). Shaft Backing Shoulder Diameter Frontface da: 3.50 in (89 mm). Shaft Backing Shoulder Diameter Backface db: 3.78 in (96 mm). Housing Backing Shoulder Diameter Frontface Da: 4.87 in (122.94 mm).
Unit Quantity: 2 Pcs. One cone and one flanged cup, supplied together as a matched single-row assembly.
The flanged cup number is carried on the same envelope by SKF, NTN, Koyo, Fersa and BCA/Bower. MPN Variants: 27287B/27620B, 27287-B 27620-B, 27287B-90047, 27620B, 27620-B.
$144.56
12 in stock
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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