How to read the bearings
When wishing to use bearings, you need to know the specs look like ball bearings or meaning codes and parameters of the bearings. Here's a guide to reading them.
Number of bearings is a sequence of letters and numbers indicate where the information about: types of bearings, including size, size, precision, within the open specifications and other related . These include the numbers and additional symbols.
According to TCVN 3776-83 numbers are bearing out as follows:
Bearings are denoted by the numbers. Last two digits indicate the diameter of the drive in from 20 to 495 mm, of this number by one fifth real size of the bearing, the drive has a diameter of from 10 to 20 mm is denoted 00 (10 mm) , 01 (12 mm), 02 (15 mm), 03 (17 mm).
For example, in a record 150,212 means: bearing a sequence (0), which cover the outer ring (5), the type of light load (2), normal width (1) diameter of 60 mm (12 × 5).
Also you can read the document symbols from the book details the author's second treadmill Nguyen Trong Hiep, Education Publishing House to find out more.
Some other examples of the significance of the bearings:
