The installation of the machine tool spindle bearing

The introduction of Spindle bearings
Spindle bearings are precision machine tool spindle bearings, and similar devices to guarantee the working accuracy of precision machine tools and the use of performance.Spindle bearing the correct configuration refers to the combination and bearing type bearing arrangement, before and after different configuration determines the spindle load capacity, speed, stiffness, temperature and service life, especially for stiffness and the influence of temperature is more significant, so should be according to the requirement of the machine tool performance reasonably configuration main shaft bearing.From the function and structure, main shaft bearing can be divided into two categories, the rolling bearing and sliding bearing.
Machine spindle is referring to the machine drives the workpiece or tool axis of rotation.Usually consists of main shaft, bearing and transmission parts (gear or pulley) of the spindle components.
Main shore to shore up in the machine transmission parts such as gears, pulleys, cried movement and torque, such as the machine tool spindle;Some to the clamping workpiece, such as the spindle.

The installation of main shaft bearing
In addition to planing machine, broaching machine, such as the main motion to linear motion of the machine tool, most of the machine tool spindle assembly.Motion precision of the spindle assembly and structural stiffness is one of the important factors determine the processing quality and cutting efficiency.
Apart after packaging, first, to clean off the anti-rust oil.
2) wash clean tank according to the rough washing and fine washing, and metal mesh pad on the bottom of the channel, the bearing is not direct contact with the clean wash the dirt from the slot.
4) in the fine cleaning tank, bearing rotation to gently to clean.
5) after cleaning for degreasing, if it is a grease, grease filling of work.
If the lubricating oil and gas, as far as possible under the conditions of bearing not rotating, installed on the spindle.
(at this point, in the bearing surface and internal coated with a thin layer of lubricating oil, the effect is better.)
Check the shaft and bearing .
Shaft and bearing seat, clean, surface of bearing and baffle are not allowed to exist scars, burr, flash, etc.Check the dimensions of the shaft and bearing seat, confirm whether meet with bearing outside diameter tolerance matching.Measurements (including installation) N should be performed in a thermostatic chamber.(checks must be multi-point measurement have obvious difference in size.)
Baffle parallelism of undesirable results in bearing tilt, lead to poor accuracy and noise problems.Installation method varies according to inside and outside the circle of cooperate.
Outer ring with clearance fit, easy installation, sometimes to make it easier to install and use the method of bearing heating.
Cone hole is bearing inner ring directly fixed on the conical shaft, used for high speed rotation, when installation, must be good control of the radial clearance, recommend the use of designed.the GN gauge.
Supplier
BMB Bearings ia a precision bearing enterprise specializing in the production of double row angular contact ball bearings, double row deep groove ball bearings, and single row angular contact ball bearings. The company is a end bearings manufacturer enterprise producing double row angular contact ball bearings in China. Its models cover 3200 series, 3300 series, 3000 series, 3800 series, 3900 series, etc. The product accuracy grades are: P0, P6, P5, P4, and the products are widely applicable.
The company also maintains an extensive inventory of superior roller bearings, ball bearings, Deep Groove Ball Bearings, Selfaligning ball bearing, Angular Contact Ball Bearings, Thrust Ball Bearings and much more