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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:
3 in stock
Inch tapered roller bearing cup, 3.4843 in outside diameter, 0.6875 in width, Class 3 precision. Runs against a 44126 or 44131 cone.
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$94.83
3 in stock
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| MFR / Brand | Timken |
|---|---|
| MPN | 44348-3 |
| Model | 44348 *3 |
| Bearing Type | Tapered Roller Bearing Cup |
| OD | 3.4843 in (88.501 mm) |
| Series | 443 |
|---|---|
| Base Number | 44348 |
| Overall Width | 0.6875 in (17.463 mm) |
| Mpn Variants | 44348-3; 44348 *3; 44348 #3; 443483; 44348 |
| Compatible With Replaces | Mating cones: Timken 44126, Timken 44131 |
| Precision Class | Class 3 |
| Additional Attributes | e Factor 0.78; Y Factor 0.77; Cg 0.0899; Max housing fillet radius 1.52 mm; Da 84.10 mm; Db 74.93 mm |
| Rolling Elements | Tapered Roller |
| Item Weight | 0.7 kg (1.5 lb) |
| Number Of Rows | 1 |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | 44348 |
| Cup Width | 0.6875 in |
| Cup Backface To Clear Radius | 0.06 in |
| Part Number | 44348-3 |
| Cross Reference 1 | Koyo 44348 - standard class |
|---|---|
| Cross Reference 2 | NTN 4T-44348 - standard class |
| Cross Reference 3 | NSK 44348 - standard class |
| Cross Reference 4 | SKF 44348 - standard class |
| Cross Reference 5 | BCA / Bower 44348 - standard class |
| Cross Reference 6 | Fersa 44348 - standard class |
Timken 44348-3 inch tapered roller bearing cup. Bearing Type: Tapered roller bearing cup — the outer race of a single-row tapered roller bearing. Series: 443. Base Number: 44348. Outside Diameter: 3.4843 in (88.501 mm). Overall Width: 0.6875 in (17.463 mm). Rolling Elements: Tapered Roller. Number Of Rows: 1. Item Weight: 0.7 kg (1.5 lb).
44348 — Timken base cup number in the 443 inch series, 3.4843 in outside diameter.
*3 — Timken Precision Class 3. Tighter running and mounting tolerance than standard class, giving lower running vibration and closer location in the housing bore. The same class is written 44348-3, 44348 *3 and 44348 #3.
e Factor: 0.78. Y Factor: 0.77. Geometry Factor (Cg): 0.0899. The e factor is the radial-to-thrust load ratio at which the bearing switches to its thrust-loaded rating equations, and at 0.78 this is a steep-angle cup that takes a large thrust share before the calculation changes. The Y factor converts thrust load into equivalent radial load in that calculation.
Maximum fillet radius on the mating housing: 1.52 mm (0.06 in). Housing Backing Shoulder Diameter, frontface (Da): 84.10 mm (3.34 in). Housing Backing Shoulder Diameter, backface (Db): 74.93 mm (2.95 in).
Unit Quantity: 1 Pc. Cup only. The matching cones are the Timken 44126 and 44131.
44348 is an industry-standard inch tapered roller bearing cup number. Koyo, NTN, NSK, SKF and BCA/Bower all build a 44348 to the same boundary dimensions as this cup. Precision Class 3 is a Timken tolerance grade; a standard-class 44348 from any maker fits the same envelope but holds a wider tolerance band.
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A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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