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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
3 in stock
Tapered roller bearing cone, 2.0000 in (50.800 mm) bore, 1.0000 in width, Class 3 precision. 98,900 N dynamic, 130,000 N static rating. Mates 28521 cup.
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| MFR / Brand | Timken |
|---|---|
| MPN | 28580-3 |
| Model | 28580 #3 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 2.0000 in (50.800 mm) |
| Series | 28500 |
|---|---|
| Base Number | 28580 |
| Overall Width | 1.0000 in (25.400 mm) |
| Mpn Variants | 28580-3, 28580*3, 28580#3, 28580 #3, 28580 |
| Compatible With Replaces | Timken 28521 cup, Timken 28523 cup |
| Precision Class | Class 3 |
| 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 |
| Harmonization Code | 8482.20.00 |
| Design Units | Inch |
| Cone Part Number | 28580 |
| Cone Width | 1.0000 in (25.400 mm) |
| Cone Backface To Clear Radius | 0.14" |
| Cone Frontface Backing Diameter | 2.28" |
| Cage Cone Frontface Clearance | 0.08" |
| Cage Cone Backface Clearance | 0.05" |
| Effective Center Location | -4.8 mm (-0.19 in) |
| Cross Reference 1 | SKF 28580 |
|---|---|
| Cross Reference 2 | NTN 4T-28580 |
| Cross Reference 3 | Koyo 28580 |
| Cross Reference 4 | FAG K28580 |
| Cross Reference 5 | NSK 28580 |
| Cross Reference 6 | BCA 28580 |
Timken 28580-3 tapered roller bearing cone: the inner ring, tapered rollers and cage of a single-row TS tapered roller bearing. Part Number: 28580-3. Base Number: 28580. Series: 28500. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Diameter: 2.0000 in (50.800 mm). Overall Width: 1.0000 in (25.400 mm). Precision Class: Class 3. Item Weight: 0.8 kg (1.7 lb). Design Units: Inch.
28580 — Timken cone number in the 28500 series, 2 in bore.
-3 — Timken precision Class 3, marked on cartons as -3, *3 or #3. Tighter runout and dimensional tolerance than standard Class 4.
Dynamic Load Rating (C1): 98,900 N (22,200 lbf), one-million-revolution basis. Dynamic Radial Load Rating (C90): 25,700 N (5,770 lbf), ninety-million-revolution basis. Dynamic Axial Rating (Ca90): 16,600 N (3,720 lbf). Static Load Rating (C0): 130,000 N (29,200 lbf). K Factor: 1.55. G1 Factor: 46.4. G2 Factor: 22.6. Geometry Factor (Cg): 0.0912.
Effective Center Location: −4.8 mm (−0.19 in). Max Shaft Fillet Radius: 3.600 mm (0.140 in). Shaft Backing Shoulder Diameter, Frontface (da): 57 mm (2.24 in). Shaft Backing Shoulder Diameter, Backface (db): 63 mm (2.48 in). Cage Location rel. to Backface (Aa): 1 mm (0.04 in). Cage Location rel. to Frontface (Ab): 1.5 mm (0.06 in).
Unit Quantity: 1 Pc. Cone only. Matching cups: Timken 28521 and Timken 28523.
Cross-Reference 1: SKF 28580. Cross-Reference 2: NTN 4T-28580. Cross-Reference 3: Koyo 28580. Cross-Reference 4: FAG K28580. Cross-Reference 5: NSK 28580. Cross-Reference 6: BCA 28580. Class 3 tolerance belongs to the -3 execution. MPN Variants: 28580-3, 28580*3, 28580#3, 28580 #3, 28580.
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