Yoke type track rollers
Like cam followers, yoke type track rollers have a reinforced outer ring that serves as a running area and preferably has a spherical design so that no edge stresses arise under high loads. However, cam followers do not have a threaded end but are instead installed on a suitable axle. In addition to radial forces, they can also absorb axial forces.
Yoke type track rollers are available open or sealed - with or without axial guidance of the outer ring.
Yoke type track rollers
Needle-roller or cylindrical-roller-mounted yoke type track rollers with axial guidance
| Series | Description | available in ABEG® performance classes | |||
|---|---|---|---|---|---|
STO | yoke type track roller with needle roller cage, open, with inner ring, without axial guidance |  |  |  | |
| NA22-...-2RS RNA-...-2RS | yoke type track roller sealed with needle roller cage, open, with inner ring, without axial guidance yoke type track roller sealed with needle roller cage, open, with no inner ring, without axial guidance | ||||
| NATR NATR-...-PP NATV NATV-...-PP | yoke type track rollers with needle roller cage, with axial guidance | | | | |
| NUTR | yoke type track roller comprising a double-row cylindrical roller bearing without a center lip, | | | | |
| PWTR-...-2RS NNTR-...-2RS | yoke type track roller comprising double-row cylindrical roller bearing with center lip, with axial guidance | | | | |
- Bearing clearance classes C2, CN, C3 and C4
- | Fa - axial load
- | Noise test by decibels
- | Noise test by vibration level for deep groove ball bearings
- | Noise test by vibration level for tapered roller bearings
- | P - dynamic equivalent load
- | PN/P0 tolerance class for radial bearings (without tapered roller bearings)
Technical information
Inadequate sealing can allow external environmental conditions to have an extremely negatively impact on running characteristics and thus a bearing’s service life. For this reason, bearings must be protected by seals.
At the same time, seals also prevent lubricants from leaking.
PP/2RS/2ZL: integrated contact seals.
Note: The NUTR series has a labyrinth seal due to a seal washer sheet.
Only yoke type track rollers with seals are lubricated for life ex works, but can also be relubricated via a lubrication hole on the inner ring depending on their size.
Note:
Pre-greased yoke type track rollers are supplied with a universal grease as standard. Low or high-temperature greases can also be supplied on request. The LFR-5... series has no lubrication hole in its inner ring that can be used to add lubricant.
Designs with a V in their name are full complement designs. Full-complement designs have a significantly higher load rating, but this reduces the maximum speed.
Coated needle-roller bearings
The manufacturer Schaeffler offers its products with its special "Corrotect" coating. We also supply designs with a zinc-iron (ZnFe) and a zinc-nickel coating.
Please indicate the desired resistance time in the salt spray test in hours, on the basis of which we will be able to select the necessary coating type.
Stainless steel
Various series are also available in stainless steel (AISI 440C, AISI420). Please ask us about this.
