overall eccentric bearing HI 300752905Y1

overall eccentric bearing HI 300752905Y1

Eccentric bearing, is a commonly used type of bearings.Mainly includes outer ring, inner ring, rolling basket, rolling body. Japan or NTN overall eccentric bearing HI 300752905Y1  has simple structure, easy to use, does not need an eccentric shaft, can achieve the eccentricfunction, reduces the manufacturing costs.  Eccentric bearing is one of the important bearings among the cycloidal reducers. The original eccentric bearing consists of three parts: an eccentric sleeve and two 502 series of cylindrical rollers.Eccentric sleeve and bearing ring are in integration for an organic whole, forming eccentric bearings.
Eccentric Bearing Processing Methods
This kind of Japan or NTN overall eccentric bearing HI 300752905Y1 requires B and C on both ends of the eccentric cylindrical cylindrical eccentric direction is consistent with A benchmark, and the eccentricity is of different size, usually within 5 mm, eccentric error is less than 0.05 mm.
In order to meet the above requirements, use the following process and tooling.
First will be A good benchmark all external processing, 50 mm to stay long in the ends of the shaft holder of 25 mm wide benchmark for chuck and A coaxial and face and A benchmark vertical steps.Shaft at both ends of the chuck milling into flat 42 h6,requires both ends parallel  with A benchmark center symmetry.
Tooling Making:Two card tanks ,   groove 42 h7  is symmetrical with central hole B5 .groove end face is vertical with  the center hole .The card canned at opposite ends of the shaft, card can of eccentric direction should be consistent, through card can flat 42 h7 / h6 groove on the shaft, control the direction of the eccentric.
By adjusting the adjustable eccentric compression screw on the card tank;Make card can face with shaft surface pressure,  guarantee  the center axis of the card can parallel to the center.

On the lathe with double top clamping, four claw clamping card can spin, with A benchmark at both ends of round table was used to measure and adjust the screw on the tank, adjust to different eccentricity, turning the eccentric cylindrical to size.When the eccentric shaft processing after the cut ends to craft chuck.
This processing method is simple, reliable, and avoid the original processing method of complex (boring centering), can be applied to multiple demands in the same direction to the eccentricity of the eccentric shaft processing.
KOYO or NTN overall eccentric bearing HI 300752905Y1  Features
Eccentric bearing features: the inner ring of the inner hole for the eccentric hole, the eccentric hole on the inside walls of a vertical keyways.
Eccentric Bearing Classification
A kind of double eccentric double row tapered roller bearing;Cylindrical roller a monolayer of raceway small clearance or negative clearance of cylindrical roller bearing, mainly installed on the printing plate cylinder and the impression cylinder sides.
Another for double raceway with negative clearance and eccentric cylindrical roller bearing units, installed on the printing machine on both sides of the rubber roller.

KOYO or NTN overall eccentric bearing HI 300752905Y1
Hollow cylindrical roller bearing because of its special structure, the vibration absorbing ability compared with the conventional rolling bearing, precision  life long and overload protection function.
Eccentric Bearing Application
Eccentric bearing consists of outer ring, inner ring, rolling basket, rolling body.
The eccentric bearing structure simple, easy to use, has greatly simplify the eccentric structure;in the meantime make the mechanical processing eccentric, time saving, easy assembly.

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KOYO or NTN overall eccentric bearing HI 300752905Y1

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KOYO or NTN overall eccentric bearing HI 300752905Y1