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Timken 28580-3 tapered roller bearing cone, 2.0000 in (50.800 mm) bore, 1.0000 in wide, Class 3 precision, 98,900 N C1 rating. Matching cup: Timken 28521.
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| MFR / Brand | Timken |
|---|---|
| MPN | 28580-3 |
| Model | 28580 #3 |
| Bearing Type | Tapered Roller Bearing Cone, Open |
| ID | 2.0000 in (50.800 mm) |
| Width | 1.0000 in (25.400 mm) |
| Series | 28500 |
|---|---|
| Material | Case Carburized Steel |
| Base Number | 28580 |
| Industry Terms | tapered roller bearing cone; taper roller inner ring assembly; taper cone only; imperial taper roller bearing; Class 3 precision taper cone |
| Common Misspellings | 28580 -3; 28580#3; 2858O-3; 28850-3; Timken 28580 X3 |
| Application Types | Gearbox and pinion shafts; wheel hubs; industrial rolls and pulleys; pump and blower shafts |
| Bore Shaft Size | 2.0000 in / 50.8 mm |
| Mpn Variants | 28580-3; 28580 *3; 28580*3; 28580 3; 28580; 28580/28521; 28580-21 |
| Compatible With Replaces | Mating cup 28521 - required to make a running bearing, not included in this listing |
| Precision Class | Class 3 |
| Additional Attributes | C90 (90 million revs): 25,700 N; Ca90 axial: 16,600 N; K Factor 1.55; G1 Factor 46.4; G2 Factor 22.6; Geometry Factor (Cg) 0.0912 |
| Dynamic Load Rating | 98,900 N |
| Static Load Rating | 130,000 N |
| Rolling Elements | Tapered Roller |
| Item Weight | 0.8 kg (1.7 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 84822000 |
| Part Number | 28580-3 |
| Dynamic Load Rating C1 | 98,900 N |
| Cone Part Number | 28580 |
| Cone Width | 1.0000 in (25.400 mm) |
| Cone Backface To Clear Radius | 0.140 in (3.6 mm) |
| Cone Frontface Backing Diameter | 2.24 in (57 mm) |
| Cage Cone Frontface Clearance | 0.06 in (1.5 mm) |
| Cage Cone Backface Clearance | 0.04 in (1 mm) |
| Effective Center Location | -0.19 in (-4.8 mm) |
| Cross Reference 1 | Timken 28580 - standard class (not Class 3) |
|---|---|
| Cross Reference 2 | NTN 4T-28580 - standard class |
| Cross Reference 3 | Bower 28580 - standard class |
Timken 28580-3 single tapered roller bearing cone: the inner ring with its tapered rollers and cage, in Timken Class 3 precision. Cone only. Matching cup: Timken 28521, forming the 28580/28521 single-row assembly. Unit Quantity: 1 Pc.
28580 — Timken cone part number, 2.0000 in bore.
-3 (marked *3) — Timken Class 3 precision: tighter bore, width and runout tolerance than a standard-class cone.
28521 — the mating cup number.
Bore Diameter: 2.0000 in (50.800 mm). Cone Width: 1.0000 in (25.400 mm). Bore Type: Straight. Rolling Elements: Tapered Roller. Number Of Rows: 1. Precision Class: Class 3. Dynamic Load Rating (C1, 1 million revolutions): 98,900 N (22,200 lbf). Dynamic Load Rating (C90, 90 million revolutions): 25,700 N (5,770 lbf). Dynamic Axial Rating (Ca90): 16,600 N (3,720 lbf). Static Load Rating (C0): 130,000 N (29,200 lbf). K Factor: 1.55. Item Weight: 0.8 kg (1.7 lb).
Effective Center Location: -0.19 in (-4.8 mm). Max Shaft Fillet Radius: 0.140 in (3.6 mm). Shaft Backing Shoulder Diameter, Frontface (da): 2.24 in (57 mm). Shaft Backing Shoulder Diameter, Backface (db): 2.48 in (63 mm). Cage Location relative to Backface (Aa): 0.04 in (1 mm). Cage Location relative to Frontface (Ab): 0.06 in (1.5 mm).
Matching cup: Timken 28521. Cross-references: Timken 28580 (standard precision class), NTN 4T-28580 (standard class), Bower 28580 (standard class). CAD model and data sheet: available from Timken (cad.timken.com).
Timken 28521.
Timken Class 3 precision, marked *3 on the ring.
Dynamic C1 98,900 N and static C0 130,000 N, from Timken’s 28580 cone page.
$35.17
3 in stock
$35.17
3 in stock
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