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 Fafnir MM318K Precision Bearing is a high-quality ball bearing made of steel, designed with a bore diameter of 70mm and an outside diameter of 150mm. Manufactured in the United States, this bearing is known for its precision and durability, making it an ideal choice for industrial automation and motion control applications. The Fafnir MM318K bearing is a reliable option for ensuring smooth and efficient mechanical power transmission in various systems.
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| MFR / Brand | Fafnir |
|---|---|
| MPN | MM318K |
| Model | MM-318-K / 6318 P4 / ABEC7 |
| Bearing Type | Ball Bearing |
| ID | 70 mm |
| OD | 150 mm |
| Width | 35 mm |
| Advertise | 1 |
|---|---|
| Material | Steel |
| Condition | New |
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New plants don’t run themselves — and the American Manufacturing
Both ball bearings and roller bearings serve the same fundamental purpose: reducing friction, supporting loads,
A linear actuator converts rotational or fluid energy into straight-line mechanical motion. This fundamental function
When the original bearing is discontinued, not available or has a lengthy lead time, there
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