Hexagon nuts (also known as finished hexagon nuts) are available in ASTM A563-A and are compatible with mild steel Bolts, such as ASTM A307, ASTM F1554 Grade 36, SAE Grade 2 and AASHTO M183. SAE Grade 5 and Grade 8 nuts are also available in finished style. Since hot-dip galvanizing usually increases the thickness of the threaded part of the fastener by 2.2 to 5 mils, the thread size of the galvanized hexagon nut is too large to compensate for the anti-corrosion coating on the bolt. Carbon Steel Nut,Galvanized Nut,Carbon Nuts,Carbon Steel Hex Nut Taizhou Hongchuang Hardware Co., Ltd. , https://www.jstaizhouhongchuang.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>The reason and countermeasures of bearing surface grinding defects Analysis of the causes and countermeasures of bearing surface grinding defects
/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The bearing is in the grinding process; the surface of the work is ground by a high-speed rotating grinding wheel; therefore, if it is not operated and adjusted according to the operation instructions during grinding, it will present various shortcomings in the bearing operation; The overall quality of the bearing. The bearing is in the fine grinding; because the rough demand is very high; the grinding marks on the exterior of the work can often be observed with the naked eye. The bearing is in the grinding process; the surface of the work is ground by a high-speed rotating grinding wheel; therefore, if it is not operated and adjusted according to the operation instructions during grinding, it will present various shortcomings in the bearing operation; The overall quality of the bearing. The bearing is in the fine grinding; because the rough demand is very high; the grinding marks on the exterior of the work can often be observed with the naked eye.
The reason for presenting the traces of the interpenetrating spiral traces is mainly because the flatness of the grinding wheel is poor; there is a concave and convex appearance; during grinding; the grinding wheel and the workpiece are only slightly touched; when the workpiece or the grinding wheel reciprocates several times; The workpiece embodiment will reproduce the interpenetrating spiral and can be observed by the naked eye. The pitch of these spirals is related to the workpiece table speed and the workpiece rotation speed; together with the grinding wheel axis and the worktable rail are not parallel.
(1) The main reason for the composition of the spiral is 1. The grinding wheel is poorly trimmed; the corners are not chamfered; the coolant is not trimmed,
2. The workbench guide guides too much lubricating oil; causing the workbench to float.
3. The machine tool accuracy is not good,
4. Grinding pressure is too large.
(2) The cause of the spiral is composed of 1. The V-shaped guide rail is not rigid enough; when grinding, the grinding wheel is offset; only the edge of the grinding wheel and the touch of the work surface,
2. When the quarrel is repaired, the commutation speed of the workbench is unstable; the precision is not high; the trimming of the grinding wheel is slightly less,
3. The workpiece itself is poorly rigid,
4. The sand on the grinding wheel with broken and too falling off and the iron scraps under the grinding of the workpiece are attached to the outer surface of the grinding wheel; for this purpose, the finished grinding wheel should be washed or washed with cooling water.
5. The dressing of the grinding wheel is not good; there are some bumps, etc. [MechNet]
The reason for presenting the traces of the interpenetrating spiral traces is mainly because the flatness of the grinding wheel is poor; there is a concave and convex appearance; during grinding; the grinding wheel and the workpiece are only slightly touched; when the workpiece or the grinding wheel reciprocates several times; The workpiece embodiment will reproduce the interpenetrating spiral and can be observed by the naked eye. The pitch of these spirals is related to the workpiece table speed and the workpiece rotation speed; together with the grinding wheel axis and the worktable rail are not parallel.
(1) The main reason for the composition of the spiral is 1. The grinding wheel is poorly trimmed; the corners are not chamfered; the coolant is not trimmed,
2. The workbench guide guides too much lubricating oil; causing the workbench to float.
3. The machine tool accuracy is not good,
4. Grinding pressure is too large.
(2) The cause of the spiral is composed of 1. The V-shaped guide rail is not rigid enough; when grinding, the grinding wheel is offset; only the edge of the grinding wheel and the touch of the work surface,
2. When the quarrel is repaired, the commutation speed of the workbench is unstable; the precision is not high; the trimming of the grinding wheel is slightly less,
3. The workpiece itself is poorly rigid,
4. The sand on the grinding wheel with broken and too falling off and the iron scraps under the grinding of the workpiece are attached to the outer surface of the grinding wheel; for this purpose, the finished grinding wheel should be washed or washed with cooling water.
5. The dressing of the grinding wheel is not good; there are some bumps.
Recommend to friends comments close window Bearing related knowledge Hydraulic bearing fan analysis of the bearing can not ignore the oscillation of what is the formation of the bearing workpiece appearance "roughness is unqualified"
SKF bearing oscillation analysis of small precision low torque angle touch ball bearings for Seiko listed robots
This article links to http://
Please indicate China Bearing Network http://
Previous:Detailed features of raceway noise Next:Smooth approach to oil smooth sliding bearings
Chinese hex nut manufacturer Hongchuang Hardware provides hex nuts of various materials, such as carbon steel, stainless steel, alloy steel, titanium, etc.
Analysis of the causes and countermeasures of bearing surface grinding defects
Source: Bearing network time: 2014-10-09