Needle roller bearing assembly testing line - introduction
Equipment purpose
Fully automatic assembly and inspection for needle roller bearings
Assembly line process
Inner and outer ring feeding → demagnetization of inner and outer rings, ultrasonic cleaning, needle installation machine, spray cleaning → eddy current testing of inner and outer rings → inner and outer diameter width detection → A-side clamp spring pressing and inspection → inner and outer ring measurement and selection, outer ring raceway grease injection → needle installation, few needle inspection → B-side clamp spring pressing and inspection → radial clearance inspection, axial clearance inspection, flexibility inspection → atomization rust prevention → discharge (to be packaged)
technical indicators
Whole line rhythm: 7-8 s/p (under full load operation)
including equipment
serial number | Device Name | Quantity (unit/line) | Main functions |
1 | Fully automatic ring feeding machine | 1 | Automatic feeding of inner and outer sleeve rings of bearings |
2 | Fully automatic dual channel ultrasonic cleaning machine | 1 | Demagnetization, ultrasonic cleaning, spray cleaning, blow drying |
3 | Fully automatic inner and outer diameter detection machine | 1 | Detect the inner ring aperture, taper, and width, as well as the outer ring diameter, taper, and width |
4 | Fully automatic card spring press in machine | 1 | A-side snap in and A-side bayonet size inspection |
5 | Fully automatic inner and outer ring selection machine | 1 | Rolling the inner and outer rings for measurement and selection, rolling the outer ring for grease injection, and conducting grease injection testing |
6 | Fully automatic needle loading machine | 1 | Dual channel needle roller installation and needle shortage inspection |
7 | Fully automatic card spring press in machine | 1 | A-side card slot positioning, B-side card spring pressing, B-side card slot size inspection |
8 | Fully automatic comprehensive testing machine | 1 | Axial clearance inspection, radial clearance inspection, flexibility inspection |
9 | Fully automatic cup type atomization rust prevention machine | 1 | Atomization rust prevention of products |



