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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
Two-row TDO tapered roller bearing assembly, 2.2500 in bore, 3.9370 in (100 mm) OD. Timken 387B-90120: two 387B cones with one 384ED double cup, new.
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3 in stock
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| MFR / Brand | Timken |
|---|---|
| MPN | 387B-90120 |
| Model | 387-B / 384-ED |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 2.2500 in (57.150 mm) |
| OD | 3.9370 in (100.000 mm) |
| Series | 385 |
|---|---|
| Mpn Variants | 387B-90120, 387B, 387-B, 384ED, 384-ED |
| Rolling Elements | Tapered Roller |
| Number Of Rows | 2 |
| Harmonization Code | 8482.2 |
| Cup Part Number | 384ED |
| Cone Part Number | 387B |
| Cone Width | 0.8640 in |
| Cone Backface To Clear Radius | 0.09 in |
| Cone Frontface Backing Diameter | 2.48 in |
| Cage Cone Frontface Clearance | 0.11 in |
| Cage Cone Backface Clearance | 0.03 in |
| Effective Center Location | -0.12 in |
Timken 387B-90120 two-row TDO tapered roller bearing assembly. Rolling Elements: Tapered Roller. Number Of Rows: 2. Bore Diameter: 2.2500 in (57.150 mm). Outside Diameter: 3.9370 in (100.000 mm). Cone Width: 0.8640 in (21.946 mm).
387B — Timken cone (inner ring, rollers and cage), 2-1/4 in bore.
384ED — Timken double cup taking two cones, 3.9370 in outside diameter.
-90120 — Timken assembly number for this factory set.
Cone Frontface Backing Diameter: 2.48 in. Cone Backface To-Clear Radius: 0.09 in.
Unit Quantity: 1 Set. Three pieces: two 387-B cones and one 384-ED double cup.
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