Spherical roller bearing is usually what what the code
The relationship between diameter, diameter, widthInternal diameter code --- according to the nominal diameter of bearings, there are several different methods of expression, the most commonly used is the 20~400mm internal diameter of the shaftBearing, with nominal bore over 5 dealers, such as the inner diameter of 25mm, with 05 60mm diameter is said.12 etc.In summary, spherical roller bearings are the following code:213XX222XX223XX230XX231XX232XX240XX241XXAmong them, the first number 2 spherical roller bearing, second, third digital representation dimension series code, XX code insideTurn left and turn right |Turn left and turn right |Turn left and turn right |Turn left and turn right |
Before and after the code name is the bearing in the structure, shape, size, tolerances, technical requirements and other changes in its basic code added about the code name, so in general, do not have to consider too much.At present, bearing code marked on the market is actually the basic code (less front and rear code), according to the standard of spherical roller bearing:2 spherical roller bearing type code with.Size series symbol --- 13, 22, 23, 30, 31, 32, 40, 41, and so on 8 different size series symbol represents
Recommended national standard GB/T 272-1993 "rolling bearing code method", this standard can be downloaded free download through Baidu search criteriaIf you want to know what kind of spherical roller bearing code, must understand the representation method of bearing code, bearing code consists of three parts: pre code + basic code + post code and basic code, and consists of three parts: type code + + code size series code inside.
