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Nachi 5209 double-row angular contact ball bearing, 45 x 85 x 30.2 mm, 30° contact angle, open both faces, CN clearance, takes thrust in both directions.
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| MFR / Brand | Nachi |
|---|---|
| MPN | 5209 |
| Model | 5209 3209 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 45 mm |
| OD | 85 mm (3.3465 in) |
| Width | 30.2 mm |
| Material | Bearing Steel |
|---|---|
| Series | 5200 |
| Base Number | 5209 |
| Industry Terms | double row angular contact bearing; 3209 bearing; 5209 bearing |
| Common Misspellings | Nachi 5209A, 5209 3209, Nachi 52O9, 5209ZZ |
| Application Types | Pumps; gearboxes; fans and blowers; machine tool spindles |
| Total Width | 30.2 mm (1-3/16 in) |
| Overall Width | 30.2 mm (1-3/16 in) |
| Bore Shaft Size | 45 mm (1.7717 in) |
| Mpn Variants | 5209, 5209 Nachi, 3209, 3209A, 5209A, 5209 open |
| Arrangement Configuration | Double row, single bearing; thrust in both directions |
| Rolling Elements | Ball |
| Number Of Rows | 2 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Internal Clearance | CN (normal) |
| Harmonization Code | 8482.10.50.68 |
| Contact Angle | 30° |
| Bearing Material | Through-hardened bearing steel |
| Part Number | 5209 |
| Cross Reference 1 | SKF 3209 A |
|---|---|
| Cross Reference 2 | FAG 3209-B-TVH |
| Cross Reference 3 | NSK 3209B |
| Cross Reference 4 | MRC 5209 |
A Nachi 5209 double-row angular contact ball bearing — 45 mm bore, 85 mm outside diameter, 30.2 mm (1-3/16 in) width, open on both faces. Two rows of balls run on opposed angled raceways inside a single pair of rings, so one bearing carries radial load and thrust in both directions and also resists shaft tilting. Unit Quantity: 1 Pc. One complete double-row bearing.
5209 — Nachi double-row angular contact ball bearing, 45 mm bore; the same envelope as the ISO 3209 designation.
30° — nominal contact angle for the double-row 3200 / 5200 family.
No closure suffix — both faces are open.
No clearance suffix — internal clearance is normal (CN).
Bearing Type: Double-row angular contact ball bearing. Number Of Rows: 2. Contact Angle: 30° nominal. Rolling Elements: Balls. Closure Type: Open both faces. Internal Clearance: CN (normal). Bearing Material: Through-hardened bearing steel. Arrangement: Double row, single bearing; thrust in both directions. Series: 5200 (ISO 3200).
Bore Diameter: 45 mm (1.7717 in). Outside Diameter: 85 mm (3.3465 in). Overall Width: 30.2 mm (1-3/16 in). Bore Type: Straight. The 30.2 mm width is the double-row width; a 6209 deep groove bearing in the same 45 x 85 mm envelope is 19 mm wide.
Cross-references: SKF 3209 A, FAG 3209-B-TVH, NSK 3209B, MRC 5209. These are open double-row angular contact ball bearings in the 45 x 85 x 30.2 mm envelope. Shielded and sealed versions such as 3209-2Z, 5209-2RS and MRC 5209MFF share the envelope but differ in closure and running friction, so they are related versions. A 6209 single-row deep groove bearing is a related size, not an interchange.
Bore Diameter: 45 mm (1.7717 in). Outside Diameter: 85 mm (3.3465 in). Overall Width: 30.2 mm (1-3/16 in).
Contact Angle: 30° nominal, for the double-row 3200 / 5200 family.
No. Both faces are open.
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