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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, 2.3613 in bore, 1.0000 in width, inch series 289. Inner ring with tapered rollers and cage, mates with a 28920 cup.
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3 in stock
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| MFR / Brand | Timken |
|---|---|
| MPN | 28980B |
| Model | 28980 B |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 2.3613 in (59.977 mm) |
| OD | 3.9370" |
| Series | 289 |
|---|---|
| Flange Outer Diameter | 4.125" |
| Cup Flange Width | 0.1875" |
| Bearing Width To Flange | 0.1875" |
| Harmonization Code | 8482.99 |
| Cup Part Number | 28980B |
| Design Units | Imperial |
| Cup Width | 1.1024" |
| Cup Backface To Clear Radius | 0.03" |
| Cup Frontface Backing Diameter | 3.74" |
| Base Number | 28980 |
| Overall Width | 1.0000 in (25.400 mm) |
| Mpn Variants | 28980B; 28980-B; 28980 B; 28980 |
| Compatible With Replaces | Mates with Timken 28920 and Timken 28919 single cups |
| Dynamic Load Rating | 106,000 N |
| Static Load Rating | 149,000 N |
| Rolling Elements | Tapered Roller |
| Item Weight | 1.63 kg (3.60 lb) |
| Number Of Rows | 1 |
Timken 28980B tapered roller bearing cone. A cone is the inner ring together with its tapered rollers and cage. Bore Diameter: 2.3613 in (59.977 mm). Overall Width: 1.0000 in (25.400 mm). Series: 289. Base Number: 28980. Design Units: Imperial. Number Of Rows: 1. Rolling Elements: Tapered Roller. Item Weight: 1.63 kg (3.60 lb). Unit Quantity: 1 Pc.
28980 — the Timken base cone number in the 289 inch series, 2.3613 in bore, running against the 28920 and 28919 cups.
B — a Timken execution letter, written 28980B and 28980-B. The boundary dimensions stay those of the 28980.
Dynamic Load Rating: 106,000 N (23,800 lbf), rated at one million revolutions. Static Load Rating: 149,000 N (33,500 lbf). Dynamic radial rating at 90 million revolutions (C90): 27,500 N (6,180 lbf). Dynamic axial rating at 90 million revolutions (Ca90): 20,000 N (4,500 lbf). K Factor: 1.37. Item Weight: 1.63 kg (3.60 lb). Harmonization Code: 8482.99.
Bore Diameter: 2.3613 in (59.977 mm). Overall Width: 1.0000 in (25.400 mm). Max Shaft Fillet Radius: 0.140 in (3.600 mm). Shaft backing shoulder diameter, frontface (da): 2.64 in (67 mm). Shaft backing shoulder diameter, backface (db): 2.87 in (73 mm). Effective Center Location: –0.1 in (–2.5 mm), inside the cone backface. Cage location relative to backface (Aa): 0.05 in (1.3 mm). Cage location relative to frontface (Ab): 0.09 in (2.3 mm).
Cone only. Matching cups: Timken 28920 and Timken 28919. The designation is 28980B, also written 28980-B and 28980 B.
Bore Diameter: 2.3613 in (59.977 mm). Overall Width: 1.0000 in (25.400 mm).
Timken 28920 and Timken 28919 single cups.
Dynamic Load Rating: 106,000 N (23,800 lbf). Static Load Rating: 149,000 N (33,500 lbf). K Factor: 1.37.
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