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Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Availability:
35 in stock
Timken 29521-3 tapered roller bearing cup, 4.3307 in (110 mm) outside diameter, 0.7500 in width, Class 3 precision, e factor 0.46, Y factor 1.31.
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35 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 |
|---|---|
| Base Number | 29521 |
| Industry Terms | Taper bearing cup; tapered roller bearing race; outer race; TS cup; Class 3 precision cup |
| Common Misspellings | Timkin 29521-3; 29512-3; tappered roller bearing cup; taper roler race |
| Total Width | 0.7500 in (19.050 mm) |
| Overall Width | 0.7500 in (19.050 mm) |
| Mpn Variants | 29521-3; 29521 *3; 29521 #3; 295213; 29521 |
| Compatible With Replaces | Mating cones: Timken 29580, Timken 29582 |
| Precision Class | Class 3 |
| E Factor | 0.46 |
| Additional Attributes | e Factor 0.46; Y Factor 1.31; Cg 0.111; Max housing fillet radius 1.27 mm; Da 103.90 mm; Db 99.06 mm |
| Rolling Elements | Tapered Roller |
| Item Weight | 0.9 kg (2 lb) |
| Number Of Rows | 1 |
| Cup Part Number | 29521-3 |
| Design Units | Imperial |
| Cup Width | 0.7500 in (19.050 mm) |
| Part Number | 29521-3 |
| Cup Frontface Backing Diameter | 4.11" |
| Cross Reference 1 | Koyo 29521 - standard class |
|---|---|
| Cross Reference 2 | NTN 4T-29521 - standard class |
| Cross Reference 3 | NSK 29521 - standard class |
| Cross Reference 4 | SKF 29521 - standard class |
| Cross Reference 5 | BCA / Bower 29521 - standard class |
Timken 29521-3 is a single-row inch tapered roller bearing cup (outer race), Class 3 precision, in the 29500 series. Cup only. Unit Quantity: 1 Pc. Matching cones: Timken 29580 and 29582.
29521 — Timken base cup number in the 29500 inch series, 4.3307 in outside diameter (exactly 110 mm).
-3 / *3 / #3 — Timken Precision Class 3, written 29521-3, 29521 *3 and 29521 #3.
Outside Diameter: 4.3307 in (110 mm). Overall Width: 0.7500 in (19.050 mm). Series: 29500. Base Number: 29521. Precision Class: Class 3. Rolling Elements: Tapered Roller. Number Of Rows: 1. Item Weight: 0.9 kg (2 lb). e Factor: 0.46. Y Factor: 1.31. Geometry Factor (Cg): 0.111.
Maximum fillet radius on the mating housing: 1.27 mm (0.050 in). Housing Backing Shoulder Diameter, frontface (Da): 103.90 mm (4.11 in). Housing Backing Shoulder Diameter, backface (Db): 99.06 mm (3.90 in).
Mating cones: Timken 29580 and 29582. Cross-references (standard class, same 29521 designation): Koyo 29521, NTN 4T-29521, NSK 29521, SKF 29521, BCA / Bower 29521.
Outside diameter 4.3307 in (110 mm), width 0.7500 in (19.050 mm).
Timken Precision Class 3.
Timken 29580 and 29582.
American manufacturers are sitting on a lot of stuff. The
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Tapered, cylindrical, and spherical roller bearings all solve the same basic problem, carrying more load
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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