A cylindrical bearings with split box or the bearing between the semi-circular hole are not allowed to have "cards to help." Half and half garden hole "repair Gang" size must not exceed the maximum specified in Table 7-92.
2. Bearing outer bearing and the bearing cap with the semi-circular hole should be a good fit since the method can be colored tape measure to check or plug gaps. Coloring inspection, bearing and bearing seat on the centerline in the symmetry 120o shall be uniform within the contact with the bearing cap in the symmetry at the centerline 90 to be uniform within the contact. And in the context of use 0.03MM Plug-foot inspection. Allowed squeezed bearing outer ring width of 1 / 3 of the plug with 0.03mm foot inspection. Allowed squeezed bearing outer ring width of 1 / 3
3 removable bearings must be cleaned according to the original state of assembly. Bearing the original packaging as well, rust-proof packaging layers can be removed immediately in a clean condition under equipped, or should be dust-proof protection or cleaned before re-assembly
4 can be set a bearing assembly in the assembly, should print bearing side outward
5 Rolling can be used to clean oil heating, but the heating temperature should not exceed 120 ℃, bearing no direct contact with the heating oil tank to prevent bearing overheating
6. For the non-standard, there are special requirements interference fit bearings, the temperature of hot charging to the amount of interference measured by heating hot charging method formula
7 rolling at room temperature, using press-fit or the percussion method, when installed, only had a surplus to allow the seat ring dictate does not allow ball (roller) or a retainer to bear axial force
8 bearings installed in the shaft after the shaft shoulder should try to be. Tapered roller bearing and radial thrust ball bearing and shaft shoulder gap is less than 0.05mm, the other bearing and shaft shoulder gap is less than 0.01mm
9 used lubricating grease bearings, assembled into the cavity in the bearing cavity volume equal to 65% ~ 80% of the lubricating grease cleaning
1. Radial clearance in the shaft at both ends of the radial bearings are not adjustable, and leaving a gap c. Usually can be c = 0.2 ~ 0.4mm implementation.
2. For an adjustable bearing radial clearance, axial clearance pattern is not provided for, but also when used in ordinary conditions, axial gap in the relevant manuals
A single row Cylinder roller bearing axial clearance adjustment
1) The adjustment screws or locking nut for bearing axial clearance adjustment: first, the adjustment screw with a threaded parts, so that bearing to the non-gap state, and then. Reversal adjustment of parts, and have been provided for the gap value. Circle the number of N determined by the formula of its reversal N = α / (tn) (circle) where α-bearing provisions of the value of axial clearance (mm) t - to adjust the screw pitch (mm) n - thread the first few
2) plug tape measure to adjust
(1) plug-foot measurement of bearing outer ring and roller (ball) the gap between the S. The axial clearance c = S / sinβ old c value by adjusting the axial clearance in line with the provisions of the
(2) compacting bearing end caps, end caps and the bearing clearance measurements, the gap with the provisions of space to adjust the total thickness of the assembly pads
3) The dial indicator measuring adjustment to the assembly of high precision
Bearings. Bearing clearance adjustment must be 100
Meters measured. Generally at both ends of the shaft bearing outer ring first
To do pre-alignment, and then dial indicator fixed with the axis traverse
A certain part, so that shaft for axial movement, with 100
Sub-table pointers measured the largest amount of axial movement in order to increase
Reducing the number pad to adjust to achieve the required axial clearance
2. Double-row tapered roller bearing axial clearance adjustment
Set of double-row tapered roller bearings, flat on the test-ping
Stage, measure the height of its total value (required quasi-symmetric location
Difference should be consistent with every other part removed, and then measured its total height value,
Height difference between the two drawings should comply with the provisions of the axial clearance
Value, otherwise meet the requirements for grinding compartment ring
3. Four-row tapered roller bearing axial clearance adjustment Power Tool Bearings
Four-row tapered roller bearings with the pairs of axial adjustment of intermittent
-Row tapered roller bearing adjustment, as long as a two-layer
Times were measured across a bearing inner ring, two outer
Ring septum ring grinding required value, and ultimately achieve pattern rules
Axial clearance requirements set
