INA stud type track rollers should be fitted using a press if possible.
Fitting of yoke type track roller using a fitting press
1, Fitting press
Blows on the flange of the roller stud must be avoided. The position of the radial lubrication hole is indicated on the flanged side of the roller stud. It must not be positioned in the loaded zone
Drive fit lubrication nipples for INA stud type track rollers
INA stud type track rollers are supplied with loose drive fit lubrication nipples that must be pressed in correctly before fitting the bearings. For lubrication of stud type track rollers using the central lubrication adapter.
Only the lubrication nipples supplied may be used, see table. If relubrication is to be carried out via the locating bore, the axial lubrication holes in the stud type track roller must be closed off using the lubrication nipples before fitting.
Stud type track roller with drive fit lubrication nipple and dimensions for pressing mandrel
Drive fit lubrication nipples
| Lubrication nipple | Dimensions in mm | Suitable for outside diameter D | ||||||
|---|---|---|---|---|---|---|---|---|
| D | d | L | h | ds | Ls | |||
| ±0,1 | ||||||||
| NIPA1 | 6 | 4 | 6 | 1,5 | - | - | 16 and | 19 |
| NIPA1×4,5 | 4,7 | 4 | 4,5 | 1 | 4,5 | 5 | 22 to | 32 |
| NIPA2×7,5 | 7,5 | 6 | 7,5 | 2 | 7,5 | 6 | 35 to | 52 |
| NIPA3×9,5 | 10 | 8 | 9,5 | 3 | 10 | 9 | 62 to | 90 |
Axial location of INA stud type track rollers
INA stud type track rollers must be axially secured using a hexagon nut. The slot or hexagonal socket on the ends of the roller stud can be used to hold the bearing by means of a key while tightening the fixing nut and to adjust the eccentric collar. If heavy vibration occurs, self-locking nuts to DIN 985 or special locking washers can be used.
The tightening torque for the fixing nuts stated in the dimension tables must be observed. It is only in this way that the permissible radial load can be ensured. If this cannot be adhered to, an interference fit is required. For self-locking nuts, the higher tightening torque must be observed; the advice given by the nut manufacturer must be followed.
Holding the bearing using an Allen key
1, Allen key
Stud type track rollers with eccentric collar
The highest point on the eccentric collar is indicated on the roller stud side.
Initial operation and relubrication
INS stud type track rollers have a lubrication hole for relubrication:
- on the flange side of the roller stud
- on the thread-side end face, from an outside diameter of 22 mm
- on the shank of the roller stud from an outside diameter of 30 mm with an additional lubrication groove.
