SKF bearings and axial clearance of the necessary fit, to make the longer service life of the bearing, sliding bearing radial clearance testing may use the following methods:
Game testing method
For large diameter sliding bearing, a large gap between them, proposed a more narrow feeler gauge direct detection. For smaller diameter sliding bearing, a small gap between them, using a feeler gauge to measure, but clearance of sliding bearing, required appropriate feeler gauge thickness measurements.
Second, lead testing law
With lead for detection of sliding bearing clearance with a feeler gauge measurement more accurate, but more trouble. Aluminum wire used for testing should be soft, moderate diameter, should not be too large or too small, the ideal diameter is 1.5~2 times the gap, practical work normally with a soft wire for testing.
Detection of when, first open sliding bearing cover, selection appropriate diameter of wire, will its stopped into 15~40 mm long of small paragraph, placed in axis neck Shang and the upper and lower bearing points interface Department, cover Shang bearing cover, by provides torque screwed tight fixed bolt, then again screwed pine bolt, remove sliding bearing cover, with micrometers detection pressure flat of wire thickness, seeking out sliding bearing top gap of average.
If the gap is too small, you can pad on the upper and lower joints. If it is too large, reduce pad again, scraping the Institute or cast tile. Bearing force adjustment: in order to prevent Bush from work that may occur during rotation and axial movement, in addition to cope with interference and moving parts, Bush covered with plain bearings necessary to tightly, measurement method and measured as top clearance method, soft wire thickness, measured, calculated bearing force.
General bearing clamping force 0.02~0.04 mm. If the clamping force is not up to standard, you can increase or decrease bearing and the bearing seat gasket thickness jiehe Mian methods to resize, tile back pad was not allowed.
SKF bearing other than to ensure that the radial clearance, should also ensure that the axial clearance. Axial clearance is detected, the axis moves to an extreme position, and then with a feeler gauge or dial gauge measurement axis from one extreme position to another extreme position play that axial clearance. When the bearing clearance does not meet the requirements, should be adjusted. Split bearing gasket adjust the radial clearance more than once.
Product Model | Inside Diameter | Outside Diameter | Thickness |
7034A5TYNSULP4 NSK | 170 | 260 | 42 |
7034CTYNSULP4 NSK | 170 | 260 | 42 |