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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:
2 in stock
Tapered roller bearing cone and cup set, 3.7500 in (95.25 mm) bore, 6.1875 in (157.163 mm) OD, Class 3 precision, 223,000 N C1. Timken 52375/52618 *3.
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| MFR / Brand | Timken |
|---|---|
| MPN | 52375-3/52618-3 |
| Model | 52375 52618 *3 |
| Bearing Type | Tapered Roller Bearing Cone |
| ID | 3.7500 in (95.250 mm) |
| OD | 6.1875 in (157.163 mm) |
| Series | 52000 |
|---|---|
| Mpn Variants | 52375-3/52618-3, 52375/52618 *3, 52375/52618#3, 52375/52618 |
| Precision Class | Class 3 |
| Dynamic Load Rating | 223,000 N |
| Static Load Rating | 343,000 N |
| Item Weight | 2.7 kg (5.9 lb) |
| Number Of Rows | 1 |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | 52618 |
| Cup Width | 1.0313 in (26.195 mm) |
| Cup Backface To Clear Radius | 0.13 in |
| Cone Part Number | 52375 |
| Cone Width | 1.4219 in (36.116 mm) |
| Cone Backface To Clear Radius | 0.14 in |
| Cone Frontface Backing Diameter | 4.13 in (105 mm) |
| Cup Frontface Backing Diameter | 6.00 in (151.90 mm) |
| Cage Cone Frontface Clearance | 0.08 in |
| Cage Cone Backface Clearance | 0.14 in |
| Effective Center Location | -0.02 in (-0.5 mm) |
| Cross Reference 1 | SKF 52375/52618 – standard class, not Class 3 |
|---|---|
| Cross Reference 2 | NTN 4T-52375/52618 – standard class, not Class 3 |
| Cross Reference 3 | Koyo 52375/52618 – standard class, not Class 3 |
Timken 52375/52618 *3 is a single-row tapered roller bearing made to precision Class 3: one 52375 cone and one 52618 cup. Bore Diameter: 3.7500 in (95.250 mm). Outside Diameter: 6.1875 in (157.163 mm). Overall Width: 1.4375 in (36.513 mm). Cone Width: 1.4219 in (36.116 mm). Cup Width: 1.0313 in (26.195 mm). Item Weight: 2.7 kg (5.9 lb). Precision Class: Class 3. Rolling Elements: Tapered Roller.
52375 — Timken inch-series cone in the 52000 series, 3.7500 in bore.
52618 — the matching single cup, 6.1875 in OD.
*3 — Class 3 precision: tighter bore, OD, width and runout tolerances than standard Class 2 for smoother, lower-vibration running.
Dynamic Load Rating: 223,000 N (50,200 lbf), Timken C1 at 1 million revolutions. Dynamic Radial Rating C90: 57,900 N (13,000 lbf). Dynamic Axial Rating Ca90: 47,100 N (10,600 lbf). Static Load Rating: 343,000 N (77,000 lbf). e Factor: 0.47. K Factor: 1.23. Y Factor: 1.26.
Effective Center Location: -0.02 in (-0.5 mm). Max Shaft Fillet Radius: 0.140 in (3.600 mm). Max Housing Fillet Radius: 0.130 in (3.30 mm). Shaft Backing Shoulder Diameter, Frontface (da): 4.13 in (105 mm). Shaft Backing Shoulder Diameter, Backface (db): 4.41 in (112 mm). Housing Backing Shoulder Diameter, Frontface (Da): 6.00 in (151.90 mm). Housing Backing Shoulder Diameter, Backface (Db): 5.59 in (141.99 mm).
Unit Quantity: 2 Pcs, one cone and one cup forming one complete single-row bearing. Carton marking: 52375/52618 *3.
52375/52618 is an ABMA standard inch set also produced by SKF, NTN (4T-52375/52618), Koyo and Bower. Those are standard-class sets; this *3 set is Timken Class 3 precision.
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