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Gearmotors: What They Are and How to Size a Replacement
Many industrial loads need torque an electric motor can’t deliver on its own, at a
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NSK 22209EAE4C3 double-row spherical roller bearing, 45 x 85 x 23 mm, straight bore, pressed steel cage, W33 groove, C3 clearance, Cr 118,000 N.
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| MFR / Brand | NSK |
|---|---|
| MPN | 22209EAE4C3 |
| Model | 22209 EA E4/W33 C3 22209C 22209CJ 22209CC |
| Bearing Type | Spherical Roller Bearing, Open |
| ID | 45 mm |
| OD | 85 mm |
| Width | 23 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 22200 |
| Lubricant | Grease or oil |
| Industry Terms | Spherical roller bearing, self-aligning roller bearing, double-row roller bearing, W33, C3 clearance |
| Overall Width | 23 mm |
| Mpn Variants | 22209EAE4C3, 22209-EA-E4-C3, 22209 EA E4/W33 C3, 22209EAC3, 22209 C W33 C3, 22209C, 22209CJ, 22209CC |
| Precision Class | ISO Normal |
| Additional Attributes | Chamfer r min: 1.1 mm; Shaft abutment da: 52-55 mm; Housing abutment Da: 75-78 mm; Fillet ra max: 1 mm; e: 0.26; Y2: 3.9; Y3: 2.7; Y0: 2.6 |
| Dynamic Load Rating | 118,000 N |
| Static Load Rating | 111,000 N |
| Precision Rating | ISO Normal |
| Rolling Elements | Spherical Roller |
| Item Weight | 0.55 kg (1.21 lb) |
| Cage Material | Pressed steel |
| Number Of Rows | 2 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Limiting Speed | 6,000 rpm grease; 7,500 rpm oil |
| Internal Clearance | C3 |
| Relubrication Feature | Outer-ring lubrication groove and three holes (E4 / W33) |
| Harmonization Code | 8482.30.00 |
| Bearing Material | High carbon chrome steel |
| Closure Type | Open |
| Common Misspellings | 22209 EAE4 C3; 22209EA-E4-C3; NSK 22209EAE4C; NKS 22209EAE4C3; 22209EA4C3 |
| Application Types | industrial gearboxes; conveyor and mining equipment; pumps and fans; heavy radial load shaft supports |
| Cross Reference 1 | SKF 22209 E/C3 - no W33 groove |
|---|---|
| Cross Reference 2 | FAG 22209-E1-C3 - no W33 groove |
| Cross Reference 3 | Timken 22209EJW33C3 |
| Cross Reference 4 | NTN 22209EAD1C3 |
| Cross Reference 5 | Koyo 22209RHW33C3 |
| Cross Reference 6 | Nachi 22209EXW33C3 |
NSK 22209EAE4C3 double-row spherical roller bearing with a straight bore, pressed steel cage, outer-ring lubrication groove with three radial holes (W33), and C3 radial internal clearance. Unit Quantity: 1 Pc.
22209 — ISO 22209 size, series 222, 45 x 85 x 23 mm.
EA — NSK high-capacity internal design with a pressed steel cage.
E4 — lubrication groove and three radial holes in the outer ring, equivalent to W33.
C3 — radial internal clearance greater than normal.
Bore Diameter: 45 mm. Outside Diameter: 85 mm. Overall Width: 23 mm. Dynamic Load Rating: 118,000 N. Static Load Rating: 111,000 N. Limiting Speed: 6,000 rpm grease; 7,500 rpm oil. Item Weight: 0.55 kg (1.21 lb). Rolling Elements: Spherical Roller. Number Of Rows: 2. Cage Material: Pressed steel. Bore Type: Straight. Closure Type: Open. Internal Clearance: C3. Precision Class: ISO Normal. Lubricant: Grease or oil. Bearing Material: High carbon chrome steel. Snap Ring Included: No. Country of Origin: Japan.
Chamfer r min: 1.1 mm. Shaft abutment diameter da: 52 mm min, 55 mm max. Housing abutment diameter Da: 75 mm min, 78 mm max. Fillet radius ra max: 1 mm.
Cross-References: Timken 22209EJW33C3, NTN 22209EAD1C3, Koyo 22209RHW33C3, Nachi 22209EXW33C3, SKF 22209 E/C3 (no W33 groove), FAG 22209-E1-C3 (no W33 groove). The tapered-bore 22209 K execution is a different part.
Dynamic Load Rating 118,000 N and Static Load Rating 111,000 N.
E4 is a lubrication groove with three radial holes in the outer ring, equivalent to W33.
6,000 rpm with grease and 7,500 rpm with oil bath lubrication.
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