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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
23 in stock
Tapered roller bearing cup, 4.3307 in outside diameter, 0.7500 in width, Class 3 precision. Imperial outer race, e factor 0.46, Y factor 1.31.
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$33.96
23 in stock
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| MFR / Brand | Timken |
|---|---|
| MPN | 29521-3 |
| Model | 29521 #3 |
| Bearing Type | Tapered Roller Bearing Cup |
| OD | 4.3307 in (110 mm) |
| Series | 29500 |
|---|---|
| Material | Case-Hardened Steel |
| Base Number | 29521 |
| Industry Terms | Taper roller cup, bearing race, outer race, tapered outer ring, cup/race |
| Common Misspellings | 29521-2, 29251-3, 2952-3, Timkin 29521-3, 29521 3 |
| Total Width | 0.7500 in (19.050 mm) |
| Overall Width | 0.7500 in (19.050 mm) |
| Mpn Variants | 29521-3, 29521*3, 29521 #3, 29521 |
| Compatible With Replaces | Timken 29580 cone, Timken 29582 cone |
| Precision Class | Class 3 |
| E Factor | 0.46 |
| Item Weight | 2 lb (0.9 kg) |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | 29521 |
| Design Units | Imperial |
| Cup Width | 0.7500 in (19.050 mm) |
| Cup Backface To Clear Radius | 0.05 in |
| Part Number | 29521-3 |
| Cup Frontface Backing Diameter | 4.11 in |
Timken 29521-3 inch tapered roller bearing cup. Cup only. A cup is the outer race of a tapered roller bearing. The matching cones are the Timken 29580 and 29582.
Part Number: 29521-3. Base Number: 29521. Series: 29500. Bearing Type: Tapered roller bearing cup. Design Units: Imperial. Precision Class: Class 3. Material: Case-hardened steel.
Outside Diameter: 4.3307 in (110 mm). Overall Width: 0.7500 in (19.050 mm). Total Width: 0.7500 in (19.050 mm). Item weight: 2 lb (0.9 kg).
29521 — the base cup number in the Timken 29500 inch series.
-3 — Timken precision Class 3. Class 3 holds a tighter tolerance than standard, which buys lower running vibration and closer location of the shaft in its housing. The same marking is written -3, *3 and #3.
Maximum Housing Fillet Radius: 0.050 in (1.27 mm). Housing Backing Shoulder Diameter, Frontface (Da): 4.11 in (103.90 mm). Housing Backing Shoulder Diameter, Backface (Db): 3.90 in (99.06 mm). e Factor: 0.46. Y Factor: 1.31. Geometry Factor (Cg): 0.111.
A 4.3307 in outside diameter is an exact 110 mm, so this cup drops into a metric housing bore as readily as an inch one. The 0.7500 in width and the Da and Db shoulder diameters give everything needed to check an existing housing before the part is on the bench.
The e factor of 0.46 is high for an inch cup, which reflects a steep roller path: this race carries a larger share of thrust before the axial component starts to govern the life calculation, and the Y factor of 1.31 is the thrust coefficient applied above that point.
Unit Quantity: 1 Pc. One cup per listing.
MPN Variants: 29521-3, 29521*3, 29521 #3, 29521. Compatible With / Replaces: Timken 29580 and 29582 cones. Industry Terms: taper roller cup, bearing race, outer race, tapered outer ring.
Rockwell’s own product page for the Kinetix 6000 is down
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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