Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
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Single-row barrel roller bearing, 45 mm bore x 120 mm OD x 29 mm wide. Cylindrical bore, machined brass cage, radial load with self-alignment. 1 Pc.
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| MFR / Brand | FAG |
|---|---|
| MPN | 20409MB |
| Model | 20409 MB |
| Bearing Type | Spherical Roller Bearing, Open |
| ID | 45 mm |
| OD | 120 mm |
| Width | 29 mm |
| Series | 20400 |
|---|---|
| Condition | New – Open box |
| Lubricant | Grease |
| Material | Bearing Steel |
| Base Number | 20409 |
| Condition Note | Made In Germany, New Old Stock |
| Bore Shaft Size | 45 mm (1.7717 in) |
| Mpn Variants | 20409-MB, 20409MB, 20409M, 20409 |
| Min Temp | -30 °C |
| Cage Type | Machined Brass |
| Dynamic Load Rating | 120 kN |
| Static Load Rating | 114 kN |
| Precision Rating | ABEC 1 / P0 |
| Rolling Elements | Barrel Rollers |
| Max Temp | 150 °C |
| Item Weight | 4.14 lbs |
| Cage Material | Machined brass |
| Limiting Speed | 5000 rpm |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.3 |
| Internal Clearance | CN |
| Cross Reference 1 | SKF 20409 |
|---|
FAG 20409-MB, a single-row barrel roller bearing. One row of barrel-shaped rollers runs on a spherical outer raceway, so the inner ring, roller set and cage swivel inside the outer ring. Boundary dimensions 45 mm bore × 120 mm outside diameter × 29 mm width. Cylindrical bore.
20 – barrel roller, single row4 – ISO dimension series, the heaviest of the barrel roller sections09 – bore code, 9 × 5 = 45 mm boreMB – machined brass cage, inner-ring guided
The barrel roller carries radial load and self-aligns on its spherical outer raceway, taking shaft deflection and housing misalignment without edge loading the rollers. Load is radial only. The 204 section puts a 120 mm outside diameter on a 45 mm shaft, the largest cross-section available at that bore, which buys the highest radial capacity of the barrel roller range. The machined brass cage runs at higher speed and temperature than a pressed steel cage.
Bore: 45 mm (1.7717 in)Outside diameter: 120 mm (4.7244 in)Width: 29 mm (1.1417 in)Rows: 1Bore form: cylindricalCage: machined brass, MBInternal clearance: CN (normal)
1 Pc. Bearing only, cylindrical bore, mounted directly on the shaft seat.
Alternate written forms of the same bearing: 20409-MB, 20409MB, 20409M, 20409. The 20309 and 20209 are the lighter 203 and 202 sections on the same 45 mm bore and are related sizes. The 22409 is a double-row spherical roller bearing, a different bearing type.
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