Small ball bearings with rubber seals, can support a range of loads, including those associated with doors. However, their weight capacity depends on several factors, including the bearing's size, construction, and quality, as well as the specific application and conditions. Here are some considerations regarding the weight capacity of small ball bearings with rubber seals for supporting doors:

Bearing Size: The size of the bearing plays a significant role in its weight-bearing capacity. Smaller bearings typically have lower load-carrying capabilities compared to larger ones. The bearing's size is usually specified by its inner and outer diameter and width.

Quality and Material: The quality and material of the bearing affect its load-bearing capacity. High-quality bearings made from durable materials like stainless steel or hardened steel can generally support heavier loads.

Number of Bearings: Distributing the load across multiple bearings can increase the weight capacity. Using more bearings in a door system can help share the load and prevent individual bearings from being overloaded.

Distribution of Weight: How the weight is distributed on the door also matters. If the weight is evenly distributed across the bearings, they can support heavier doors compared to doors with uneven weight distribution.

Dynamic vs. Static Load: Bearings are often rated for both dynamic and static loads. Dynamic load refers to the weight the bearing can handle while in motion (e.g., when the door is being opened or closed), while static load refers to the weight when the door is stationary. Be sure to consider both values when assessing load capacity.

Safety Margin: It's advisable to apply a safety margin when calculating the weight capacity of the bearings. A safety margin ensures that the bearings can handle unexpected loads or variations in usage without failing.

Environmental Factors: Consider the environmental conditions, such as temperature and humidity, as they can affect the performance of rubber seals and the overall bearing durability.

Maintenance: Regular maintenance, including lubrication and inspection, can help extend the lifespan and load-bearing capacity of the bearings.

The 6304-2RS Small Ball Bearing With Rubber Seal Wholesale should provide load ratings and other relevant information that will help you determine the weight capacity range for your application. If you're dealing with particularly heavy doors or specialized door systems, you may want to consider consulting with a bearing specialist or engineer to ensure that the chosen bearings can safely support the intended load.