The taper of a tapered bearing is:

The taper of a tapered bearing, which is designated as 1:12, indicates the ratio of the vertical rise to the horizontal run of the taper. This means that for every 12 units of horizontal distance, the taper rises by 1 unit. This specific ratio is commonly used in the design and manufacturing of tapered bearings to ensure proper seating and alignment within the assembly.

Tapered bearings rely on this precise angle to effectively manage load distribution and minimize issues such as wear and misalignment. The 1:12 taper is a standard that has been widely adopted in various mechanical applications to enhance the performance and reliability of the bearing during operation.

In contrast, other taper ratios, such as 1:10, 1:100, and 1:96, do not correspond to the standard taper used in tapered bearings, making them less applicable in this context. Each of these ratios serves different functions in various engineering applications, but for tapered bearings, the 1:12 ratio is recognized for providing the best balance of strength and ease of installation.