Identify the correct temperature range for typical grease lubricated bearings.

The correct temperature range for typical grease lubricated bearings is from -20°F to 250°F (-29°C to 121°C). This range encompasses the operational limits within which grease can maintain its viscosity and performance without compromising the bearing's integrity. Grease is commonly used in various applications due to its ability to adhere to surfaces, reduce friction, and prevent wear under a range of temperatures.

At lower temperatures like -20°F, the grease remains pliable enough to provide lubrication and protection, while up to 250°F, it remains stable enough to prevent breakdown or oxidation, which can negatively affect the performance of the bearings. This temperature range is especially critical in industrial environments where bearings are exposed to varying operational conditions and require dependable lubrication to ensure longevity and efficiency.

Other ranges provided in the options do not realistically represent the typical operational limits for most grease lubricated bearings, either being too restrictive or exceeding the recommended limits for the integrity of the grease.