Product Description
Yoke type track rollers of series NAST are newly developed to satisfy our customer's increasing requirements.
This type is one of our standards and consists of an inner and an outer ring and a precision cage.
Type NAST.. features not to have thrust washers.
Otherwise NAST..ZZ which has two thrust washers on both sides is a little different NART when it comes to the arrangement of the thrust washer which guide the outer ring.
The thrust washers of series NART are pressed into the inner ring, thus making the rollers unseparable.
In series NAST, the retaining washers are loose and the rollers are separable.
The cages containing needles are also separable.
There is another type, RNAST which has no inner ring.THis type run directly on the shafts or in the housings.