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How to choose Agricultural Bearings 2011-12-05

Agricultural Bearing axis of rotation of various mechanical or moving parts of the supporting parts are widely used in agricultural vehicles, tractors, diesel engines, motors, threshers and other agricultural machinery. Purchase bearings bearings commonly used code, but the bearing code more complicated, and if the farm hands to master the law of identification bearing code to purchase on easy.

Agricultural Bearings are a little ordinary common standard model, code-named "0", tolerance levels for the "G" (normal level), the general bearing of the first paragraph can not write, so the code more than seven digits to express the basic code. An example is explained to understand the meaning of the bearing code: Example 7002136 (135 series engine main shaft bearings of light), the basic code from right to left in order to identify, SKF bearing. "36" double-digit expression of light, the calculation is 36 × 5 = 180 mm; "1" to express the diameter series special light; "2" to express the type cylindrical roller bearings; "00" way to express the bearing outer ring structure no ribs; "7" series for the narrow width of the expression. If the machine hand to buy other standard models bearing 7-digit code can be funded and so on. Optional multi-reference bearing diameter bearings, bearing ID code used in the basic right first, second digit expression. Sub-standard and non-standard bearing bore diameter, the difference is not a flat non-standard ID number or integer multiples of 5.

Convenient option for the machine hand, SNL housings are an example to explain to understand:

① Bearing inner diameter of 9 mm below the right end of the first number with the actual size of the expression. For example, bearing No. 18, the inner diameter of 8 mm.

② bearing 10-17 mm in diameter with a fixed number of expression. For example, bearing No. 100,201,302,403, its diameter two-digit code unless the right is 00,01,02,03, unless it is 10,12,15,17 mm diameter fixed digital expression.

③ Bearing inside diameter 20-480 mm (22,28,32 are excluded), in addition to diameter size from number 5 expression.

④ bearing inner diameter of 500 mm (22,28,32) with the scores expressed in the denominator expression diameter, the size of molecule expression bearing series, type and structure of the way. For example, bearing No. 30031/560, the inner diameter of 560 mm, other are provided on.

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