The measured pressure head radius and the measuring instrument by Ebearing
Most favorable price : sales@hellerbearings.com
FAG bearings can remove the oil packaging before will be delivered to the routine examination, and the immersion washing gasoline containing 3% oil or acid free kerosene, rotate the outer ring and carefully washing holder, at the junction of the rolling elements and raceways, require any hidden parts of the original oil residue completely clean. Bearings should be splashed in the clean bench clean, put the paper in the neutral lining on the dry, or slowly in the far-infrared oven drying. Self cleaning oil spray after drying or drying, the whole process may not be the holder or any of the rolling element bearing ring, the rotation.
The bearing has dry or drying, provisions should be lubricated and immediate delivery inspection, no wax protection at the outer surface of the bearing, throughout the inspection process shall be directly touching the hand skin, the operator should wear clean gloves, or hand coated with anti rust agent, but must avoid rolling surface antirust hand mixed bearing, otherwise it will make the measurement results deviation.
A piece of metal plate bearing with inspection also must be checked before the gauge, standard parts and measuring instruments placed together in checking the place on, this can quickly make the homogenization temperature and room temperature of these objects.
Obviously, only strictly do the preparatory work, to ensure accurate inspection results, throughout the inspection process bearing does not rust.
Routine examination in two, FAG bearing goods, must be in accordance with the provisions of the state standard conditions.
(1) when measuring temperature conditions
Environment temperature measurement is 20 ℃, in which the bearing, gauge, standard parts and measuring instrument of temperature must be the same, the method of them on the same piece of metal plate can quickly realize temperature balance necessary, otherwise take hours or even days to achieve this balance.
In order to get the correct measurement results, foreign rely on mechanical measurement to avoid hand contact with these objects, or wear insulated gloves operation.
(2) the provisions in the measurement area
For measuring bearing diameter or diameter, measuring domestic provisions in the left ring within the south side for a maximum chamfer coordinate regional, and foreign provisions within the left measuring ring end surface of each was two times the area of chamfer coordinate.
(3) the provisions of dimension datum
Measurements in the comparative measurement method for bearing tolerances specified dosage on, block or standard part as a benchmark comparison measurement of size, the block must be consistent with the provisions of standard JB / T1078 "block", the provisions of standard parts must comply with the factory department.
(4) the provisions of measuring instrument
The measuring instrument must be calibrated, and is compatible with the measured bearing accuracy and amplification ratio.
(5) the measurement error tolerance
In principle allows the measurement error in the following tolerances of 10%.
In order to reduce measurement error, must be to the extent possible, to reduce the pressure measuring force measuring instrument, and increases the radius of curvature of the head.
In the inner and outer diameter measurement of bearing, the measuring force and probe radius of curvature can refer to selection.
(7) the measuring mandrel
In the measurement of bearing Kia, Kea and Sd project, for bearings with a cylindrical bore, the principle of taper taper mandrels for 1 / 5000 l / 10000, the 铀承 conical hole, the basic provisions of the taper taper mandrels for 1 / 12.
(8) the provisions of measuring the load
When measuring Kia, Kea and Sia, Sea and other projects, the need to impose necessary measuring load, the rolling body and the ring is in the contact position to measure the normal, stable value.
(9) the provisions measuring datum plane
For the general FAG bearing, non printing surface measurement when the ring as the datum plane, the angular contact ball bearings and tapered roller bearings, the end thrust load as the datum plane.
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
We can provide free samples . Please contact Email for any inquiries
A, FAG bearing routine examination preparationFAG bearings can remove the oil packaging before will be delivered to the routine examination, and the immersion washing gasoline containing 3% oil or acid free kerosene, rotate the outer ring and carefully washing holder, at the junction of the rolling elements and raceways, require any hidden parts of the original oil residue completely clean. Bearings should be splashed in the clean bench clean, put the paper in the neutral lining on the dry, or slowly in the far-infrared oven drying. Self cleaning oil spray after drying or drying, the whole process may not be the holder or any of the rolling element bearing ring, the rotation.
The bearing has dry or drying, provisions should be lubricated and immediate delivery inspection, no wax protection at the outer surface of the bearing, throughout the inspection process shall be directly touching the hand skin, the operator should wear clean gloves, or hand coated with anti rust agent, but must avoid rolling surface antirust hand mixed bearing, otherwise it will make the measurement results deviation.
A piece of metal plate bearing with inspection also must be checked before the gauge, standard parts and measuring instruments placed together in checking the place on, this can quickly make the homogenization temperature and room temperature of these objects.
Obviously, only strictly do the preparatory work, to ensure accurate inspection results, throughout the inspection process bearing does not rust.
Routine examination in two, FAG bearing goods, must be in accordance with the provisions of the state standard conditions.
(1) when measuring temperature conditions
Environment temperature measurement is 20 ℃, in which the bearing, gauge, standard parts and measuring instrument of temperature must be the same, the method of them on the same piece of metal plate can quickly realize temperature balance necessary, otherwise take hours or even days to achieve this balance.
In order to get the correct measurement results, foreign rely on mechanical measurement to avoid hand contact with these objects, or wear insulated gloves operation.
(2) the provisions in the measurement area
For measuring bearing diameter or diameter, measuring domestic provisions in the left ring within the south side for a maximum chamfer coordinate regional, and foreign provisions within the left measuring ring end surface of each was two times the area of chamfer coordinate.
(3) the provisions of dimension datum
Measurements in the comparative measurement method for bearing tolerances specified dosage on, block or standard part as a benchmark comparison measurement of size, the block must be consistent with the provisions of standard JB / T1078 "block", the provisions of standard parts must comply with the factory department.
(4) the provisions of measuring instrument
The measuring instrument must be calibrated, and is compatible with the measured bearing accuracy and amplification ratio.
(5) the measurement error tolerance
In principle allows the measurement error in the following tolerances of 10%.
In order to reduce measurement error, must be to the extent possible, to reduce the pressure measuring force measuring instrument, and increases the radius of curvature of the head.
In the inner and outer diameter measurement of bearing, the measuring force and probe radius of curvature can refer to selection.
(7) the measuring mandrel
In the measurement of bearing Kia, Kea and Sd project, for bearings with a cylindrical bore, the principle of taper taper mandrels for 1 / 5000 l / 10000, the 铀承 conical hole, the basic provisions of the taper taper mandrels for 1 / 12.
(8) the provisions of measuring the load
When measuring Kia, Kea and Sia, Sea and other projects, the need to impose necessary measuring load, the rolling body and the ring is in the contact position to measure the normal, stable value.
(9) the provisions measuring datum plane
For the general FAG bearing, non printing surface measurement when the ring as the datum plane, the angular contact ball bearings and tapered roller bearings, the end thrust load as the datum plane.
