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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:
1 in stock
Class 3 tapered roller bearing cone, 1.0625 in (26.988 mm) bore, 0.6875 in cone width, 46,000 N C1 dynamic rating. Mates with Timken 15520 or 15520RB cups.
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| MFR / Brand | Timken |
|---|---|
| MPN | 15580-3 |
| Model | 15580 #3 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 1.0625 in (26.988 mm) |
| Series | 15500 |
|---|---|
| Base Number | 15580 |
| Industry Terms | tapered roller bearing cone, TRB cone, cone assembly, inner ring and roller assembly |
| Mpn Variants | 15580-3, 15580 *3, 15580 #3, 155803 |
| Precision Class | Class 3 |
| Dynamic Axial Rating Ca90 | 7,070 N |
| K Factor | 1.69 |
| Additional Attributes | Cone only, single row; inch series; Class 3 precision |
| Dynamic Load Rating | 46,000 N (C1, 1 million revolutions) |
| Static Load Rating | 50,100 N |
| Rolling Elements | Tapered Roller |
| Number Of Rows | 1 |
| Harmonization Code | 8482.2 |
| Design Units | Inch |
| Bearing Class | Class 3 |
| Cone Part Number | 15580 |
| Cone Width | 0.6875 in (17.463 mm) |
| Effective Center Location | -0.2 in (-5.1 mm) |
| Common Misspellings | Timkin 15580-3; Timkon 15580-3; Timken 155803; Timken 15580 3 |
| Application Types | Industrial gearboxes; wheel hubs; heavy equipment axles; general machinery shafts |
| Cross Reference 1 | Timken 15580 (standard precision) |
|---|
Timken 15580-3 is a single tapered roller bearing cone: the inner ring with its tapered rollers and cage. Cone only. Matching cup: Timken 15520 or 15520RB. Class 3 precision. Unit Quantity: 1 Pc.
15580 — Timken inch cone number in the 15500 series, 1-1/16 in bore.
-3 — Timken Class 3 precision: tighter tolerance and lower running vibration.
Bore Diameter: 1.0625 in (26.988 mm). Cone Width: 0.6875 in (17.463 mm). Precision Class: Class 3. Dynamic Load Rating: 46,000 N (C1, 1 million revolutions). Dynamic Load Rating (C90): 11,900 N (90 million revolutions). Dynamic Axial Rating (Ca90): 7,070 N. Static Load Rating: 50,100 N. K Factor: 1.69. Rolling Elements: Tapered Roller. Number Of Rows: 1. Design Units: Inch.
Effective Center Location: -0.2 in (-5.1 mm). Max Shaft Fillet Radius: 0.140 in (3.600 mm). Shaft Backing Shoulder Diameter Frontface: 1.26 in (32 mm). Shaft Backing Shoulder Diameter Backface: 1.52 in (38.5 mm). Cage Location Relative To Backface: 0 in (0 mm). Cage Location Relative To Frontface: 0.1 in (2.5 mm). G1 Factor: 12.7. G2 Factor: 10.3. Geometry Factor (Cg): 0.0577.
Matching Cup: Timken 15520 or 15520RB. Assembly Designation: Timken 15580/15520, a single-row TS bearing with Assembly Outside Diameter: 2.2500 in (57.150 mm) and Assembly Width: 0.6875 in (17.463 mm). Cross-Reference 1: Timken 15580 (standard precision).
Bore Diameter is 1.0625 in (26.988 mm) and Cone Width is 0.6875 in (17.463 mm).
Timken lists the 15520 and 15520RB cups as mates. The 15580/15520 assembly measures 2.2500 in (57.150 mm) outside diameter by 0.6875 in (17.463 mm) wide.
It is Timken Class 3 precision: tighter tolerance and lower running vibration.
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