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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
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1 in stock
Tapered roller bearing cone, 1-5/8 in bore, 1.1772 in inner ring width. Class 3 precision, K factor 2.05, 127,000 N dynamic radial load rating.
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| MFR / Brand | Timken |
|---|---|
| MPN | 439-3 |
| Model | 439 #3 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 1.6250 in (41.275 mm) |
| Series | 439 |
|---|---|
| Harmonization Code | 8482.20.00 |
| Design Units | Imperial |
| Bearing Material | Carburized Steel |
| Cone Part Number | 439 |
| Cone Width | 1.1772 in (29.901 mm) |
| Cone Backface To Clear Radius | 0.14" |
| Base Number | 439 |
| Overall Width | 1.1772 in (29.901 mm) |
| Mpn Variants | 439, 439-3, 439 *3, 439#3 |
| Compatible With Replaces | SKF 439, FAG K-439, NSK 439, NTN 4T-439, Koyo 439, Fersa 439 |
| Precision Class | Class 3 |
| Dynamic Axial Rating Ca90 | 16,000 N |
| K Factor | 2.05 |
| Dynamic Load Rating | 127,000 N |
| Static Load Rating | 144,000 N |
| Precision Rating | Class 3 |
| Rolling Elements | Tapered Roller |
| Item Weight | 2.098 kg (4.62 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Cup Part Number | 430X, 432 |
| Effective Center Location | -0.36 in (-9.1 mm) |
| Industry Terms | tapered roller bearing cone; TS single cone; inner ring and roller assembly; inch taper cone; Class 3 cone |
| Common Misspellings | Timkin 439-3; Timken 439 3; Timkem 439-3; Timken 4393; Timken 439*3 |
| Application Types | Inch-series tapered roller bearing positions; gearbox shafts; wheel hubs; industrial machinery |
| Cross Reference 1 | SKF 439 |
|---|---|
| Cross Reference 2 | FAG K-439 |
| Cross Reference 3 | NSK 439 |
| Cross Reference 4 | NTN 4T-439 |
| Cross Reference 5 | Koyo 439 |
| Cross Reference 6 | Fersa 439 |
| Cross Reference 7 | BCA/Bower 439 |
| Cross Reference 8 | PEER 439 |
Timken 439 *3 single tapered roller bearing cone — the inner ring, roller and cage assembly of a TS-design tapered roller bearing. Bore (d): 1 5/8 in (41.275 mm). Inner Ring Width (B): 1.1772 in (29.901 mm). Precision Class: Class 3.
439 — the cone number, which fixes the bore, the cone width and the raceway angle.
*3 — Precision Class 3, a tighter tolerance than standard, giving closer shaft location and lower running vibration.
Bore Diameter: 1.6250 in (41.275 mm). Cone Width: 1.1772 in (29.901 mm). Series: 439. Bearing Material: Carburized Steel. Design Units: Imperial. Number Of Rows: 1. Rolling Elements: Tapered Roller. Precision Class: Class 3. Dynamic Radial Load Rating (C1, 1M revs): 127,000 N (28,500 lbf). Dynamic Radial Load Rating (C90, 90M revs): 32,900 N (7,400 lbf). Dynamic Axial Rating (Ca90): 16,000 N (3,600 lbf). Static Radial Load Rating (C0): 144,000 N (32,400 lbf). K Factor: 2.05. G1 Factor: 42.5. G2 Factor: 11.3. Geometry Factor (Cg): 0.0805. Item weight: 2.098 kg (4.62 lb). Unit Quantity: 1 Pc.
Effective Center Location: –0.36 in (–9.1 mm). Max Shaft Fillet Radius: 0.050 in (1.300 mm). Shaft Backing Shoulder Diameter – Frontface (da): 1.91 in (48.5 mm). Shaft Backing Shoulder Diameter – Backface (db): 1.97 in (50 mm). Cage Location relative to Backface (Aa): 0.04 in (1 mm). Cage Location relative to Frontface (Ab): 0.05 in (1.3 mm). Cone Backface To Clear Radius: 0.14 in.
Cone only. The matching cups are the Timken 430X and the Timken 432. The 439 base number is carried across the trade: SKF 439, FAG K-439, NSK 439, NTN 4T-439, Koyo 439, Fersa 439, BCA/Bower 439 and PEER 439. Searchable forms of the designation: 439, 439-3, 439 *3, 439#3.
1 5/8 in (41.275 mm) bore, 1.1772 in (29.901 mm) inner ring width.
The Timken 430X and the Timken 432.
Precision Class 3, a tighter tolerance than standard.
$137.64
92 in stock
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