**SKF Agricultural Machinery Bearing Selection Guide** Home > Bearing Knowledge > Selection of SKF Agricultural Machinery Bearings var cpro_id = "u3440131";

Purchasing SKF Agricultural Machinery Bearings

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SKF bearings are essential components in agricultural machinery, supporting rotating shafts and moving parts. They are widely used in tractors, diesel engines, electric motors, and other farm equipment. When purchasing SKF bearings, understanding the bearing code is crucial for accurate selection. Most common bearings follow a standard naming convention. The basic code usually consists of seven digits, with the first part indicating the type, and the last digits representing the inner diameter. For example, the code “0” typically denotes a general-purpose bearing, while “G” represents the standard precision level. Let’s break down an example: Take the bearing code 7002136 (used in a 135 series diesel engine). The rightmost two digits, “36,” indicate the inner diameter, calculated as 36 × 5 = 180 mm. The next digit, “1,” shows the diameter series, “2” indicates it's a cylindrical roller bearing, “00” means no ribs on the outer ring, and “7” refers to the narrow width series. When purchasing bearings, pay attention to the inner diameter, which is often found at the end of the code. For bearings with an inner diameter less than 9 mm, the last digit represents the actual size, such as 18 meaning 8 mm. For diameters between 10–17 mm, the last two digits correspond to specific sizes, like 00 = 10 mm, 01 = 12 mm, and so on. For bearings with inner diameters from 20 to 480 mm, the inner diameter is obtained by dividing the number by 5. For example, a bearing with the code 6020 has an inner diameter of 100 mm (20 × 5 = 100). Bearings larger than 500 mm use a fractional notation, where the denominator represents the inner diameter, and the numerator indicates the series, type, and configuration. An example is 30031/560, which has an inner diameter of 560 mm. Understanding these rules can greatly simplify the process of selecting and purchasing SKF bearings for agricultural machinery. Whether you're working on a tractor or a combine harvester, knowing how to read and interpret bearing codes ensures you get the right part for your application. **Related Bearing Knowledge:** - The development of bearing sealing techniques - Key characteristics of deep groove ball bearings - Factors affecting the performance of SKF bearings - Methods to assess the quality of automotive bearings - High-speed spindle bearing technology for machine tools This article was originally published on [China Bearing Network](http://). Please visit [Bearing Network](http://) for more information. Previous: Analysis of the Factors Affecting NSK Bearing Oscillation Next: Bearing Data Thermal Disposal --- (Word count: 520)

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