- Hello Customer - Log in or Register!
Check before cleaning surface of the machine, and then remove the stainless steel bearing parts around. The oil seal is very fragile parts, in need careful disassembly, not excessive force, and then check the oil seal and its surrounding carefully parts, if have shown adverse symptoms, be sure to replace the bad, the seal will cause equipment damage of INA bearings and severe shutdown.
Check with lubricant, friction little lubricant in between two fingers, if the presence of pollutants, can be felt in the back of the hand, or coated with a thin layer of lubricant, then light check.
The replacement of lubricants, stainless steel ball bearing lubrication oil in addition to the old oil, and then poured into the fresh oil and let the machine in low speed rotation for several minutes. Pollutants as far as possible so that the oil collecting residual, and then poured the oil, the oil in use before filtering.
(1) the provisions of measuring instrument
The measuring instrument must be calibrated, and is compatible with the INA bearing accuracy and amplification ratio.
(2) the measurement error tolerance
In principle, allowing the measurement error in the tolerance of 10%.
(3) for measuring pressure head radius and the measuring instrument
In order to reduce measurement error, must to the extent possible, to reduce pressure - measuring force measurement table, and to increase the radius of curvature of the measuring head.
In the inner diameter and outer diameter measurement of INA bearings, measuring force and probe radius of curvature can refer to selection.
(4) the measurement temperature conditions
When measuring the environment temperature regulation is 20 ℃, in which the bearing, gauge, standard parts and the temperature measuring instruments must be the same, the method of them on the same piece of metal plate can quickly realize temperature balance necessary, otherwise take several hours or even days to achieve this balance.
In order to get the correct measurement results, foreign rely on mechanical measurement to avoid contact with these objects, or wear insulated gloves.
(5) specify the measurement area
For the measurement of INA bearing diameter or diameter, within the domestic provisions in the left surface of the ferrule tip for a maximum chamfer coordinate area measurement, and foreign regulations for measurement of left ring end faces within each of two times the area of chamfer coordinate.
(6) the provisions of size datum
Measurement in the comparative measurement method for INA bearing dimensional tolerances on the specified dosage, block or standard part as a size standard comparison measurement, the block must be consistent with the provisions of the standard JB / T1078 "block", must comply with the provisions of standard parts factory departments.
(7) the measuring mandrel
In the measurement of bearing Kia, Kea and Sd project, for the cylinder bore bearing, taper spindle taper in principle on the provisions of 1 / 5000 l / 10000, for Youcheng conical hole, the basic provisions of the taper taper spindle is 1 / 12.
(8) the provisions of measuring load
When measuring Kia, Kea and Sia, Sea and other projects, the need to impose necessary measuring load, the rolling body and the ring at the contact position of normal, to measure to obtain a stable value.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-44143/44348 NTN | 36.512 | 88.5 | 23.698 |
| 4T-3479/3420 NTN | 36.512 | 79.375 | 29.771 |