Ball Bearings vs. Roller Bearings: Which One Does Your Application Actually Need?
Both ball bearings and roller bearings serve the same fundamental purpose: reducing friction, supporting loads,

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Timken 3577X Tapered Roller Bearing Cone delivers dependable, high-precision alignment for heavy machinery. This cone features a 1-5/8 inch bore and a width of 22.225 millimeters, designed to handle demanding loads with accuracy. It is built from carburizing bearing steel, uses a pressed steel cage, and has an open design with no snap ring for easier installation. Dynamic load rating is 51.5 kN and static load rating is 66.5 kN, with a temperature range from minus 40 to 120 degrees Celsius. Lubrication is suitable with oil or grease. Made in the United States as New Old Stock, this heavy-duty component cross references to SKF 3577, FAG 3577, NTN 3577, Koyo 3577, and BCA 3577, ensuring compatibility in many assemblies. Weight is approximately 0.8 pounds. A robust solution for high-stress applications that demand precise alignment and long service life.
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| MFR / Brand | Timken |
|---|---|
| MPN | 3577X |
| Model | 3577 X |
| Bearing Type | Tapered Roller Bearing Cone, Open |
| ID | 1-5/8 in |
| Min Temp | -40 �C |
|---|---|
| Cage Type | Pressed Steel |
| Dynamic Load Rating | 51.5 kN |
| Static Load Rating | 66.5 kN |
| Precision Rating | Class 2 |
| Series | 3570 |
| Rolling Elements | Tapered Rollers |
| Max Temp | 120 �C |
| Condition | New – Open box |
| Item Weight | 0.8 lbs |
| Cage Material | Steel |
| Limiting Speed | 6000 rpm |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Lubricant | Oil or Grease |
| Duty Type | Heavy Duty |
| Harmonization Code | 8482.20.00 |
| Material | Carburizing Bearing Steel |
| Cross Reference 1 | SKF 3577 |
|---|---|
| Cross Reference 2 | FAG 3577 |
| Cross Reference 3 | NTN 3577 |
| Cross Reference 4 | Koyo 3577 |
| Cross Reference 5 | BCA 3577 |
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