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Dodge bearing FAQS

QWhat is about Bearing accuracy levels?

AThe grade of the bearing is divided into four levels: PO-P6-P5-P4-P2. The PO grade is the national standard. It is also the most common standard in the bearing industry. Therefore, it is also called the ordinary grade. Most of the domestic manufacturers are also They are all producing PO grade products, and the P2 grade is the highest precision grade! Specific technical parameters are also standard. A brief summary is as follows: the benchmark of accuracy The accuracy of the rolling bearing is divided into (main) dimensional accuracy and rotation accuracy. The accuracy level has been standardized and is divided into six levels: 0, 6X, 6, 5, 4, and 6.

QWhat is Needle bearing?

ANeedle roller bearings are equipped with thin and long rollers (the length of the roller is 3 to 10 times the diameter and the diameter is generally not more than 5 mm), so the radial structure is compact, and the inner diameter and load capacity are the same as those of other types of bearings. The smallest diameter, especially suitable for radial mounting size limited support structure. Needle roller bearings can be selected without inner ring bearing or needle roller and cage assembly depending on the application.

QWhat is Parker Motor?

AMotor is the electric motor and the engine. The working principle is that the rotor of the starter rotates by the force of the energized coil in the magnetic field, and the pinion on the rotor drives the flywheel of the engine to rotate. Hydraulic motor: It is customary to refer to the energy conversion device that outputs the rotary motion and converts the hydraulic energy provided by the hydraulic pump into mechanical energy.

QHow to maintenance hydraulic pump?

A1, often fatliquoring, electric drum pump for high-speed operation, grease is easy to volatilize, so the lubrication at the bearing must be kept clean, and pay attention to add. 2, fiber-forming, pay attention to save the electric pump should be placed in a dry, clean and non-corrosive atmosphere. 3, the pump pay attention to the insulation resistance, long-term use of the electric pump is not used or used in a humid environment, the insulation resistance of the winding must be measured with a 500 volt megohmmeter before use. If the insulation resistance between the winding and the motor casing is less than 7 megohms, the winding must be dried. 4, the pump is often checked and repaired, the electric oil drum pump should be checked frequently, repair, check the power cord: internal wiring, plug, switch is good, insulation resistance is normal, the brush tail seat is loose, the commutator is in contact with the brush Good, whether the armature windings the stator windings are suitable for interrupting the road, whether the bearings and rotating parts are damaged, and so on. 5, save each part and exchange the same parts, when disassembling the pump, each part should be preserved, pay special attention to the explosion-proof surface of the explosion-proof parts can not cause damage to the wool, including insulation pads and casing, if damaged The new identical parts must be replaced. Substitute materials that are lower than the performance of the raw materials or parts that do not conform to the original specifications shall not be used. All parts shall be assembled in the original position during assembly and shall not be missed.