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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The product is a set of two SKF 7018-CD/P4ADGB Angular Contact Ball Bearings, measuring 90mm in bore diameter, 140mm in outside diameter, and 24mm in width. These bearings are made of steel and are manufactured in Italy. The 7018-CD/P4A DGB model is designed for industrial automation and motion control applications, providing reliable performance and durability for mechanical power transmission.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7018CDP4ADGB |
| Model | 7018CD/P4A DGB |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 90 mm |
| OD | 140 mm |
| Width | 24 mm |
| Advertise | 1 |
|---|---|
| Material | Bearing Steel |
| Min Temp | -30°C |
| Cage Type | Machined |
| Dynamic Load Rating | 127 kN |
| Static Load Rating | 153 kN |
| Precision Rating | ABEC 7 / P4 |
| Series | 7000 |
| Rolling Elements | Balls |
| Max Temp | 100°C |
| Condition | New |
| Item Weight | 5.02 lbs |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15°C |
| Preload | Light |
| Mounting Arrangement | Back-to-Back |
| Internal Clearance | CN |
| Cross Reference 1 | Fafnir 2MM9118WI-DUM |
|---|
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When the original bearing is discontinued, not available or has a lengthy lead time, there
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