This is for servicing and presenting locomotives with up to 8 driving axles and coupled axles. It is suitable for the "Big Boy". Eight adjustable pairs of roller brackets with precision ball bearings are included. The aluminum parts of the roller brackets are black anodized. The construction and technical features are the same as the 78150 roller test stand. The 78158 measurement device can be installed on this test stand.

Dimensions 520 x 42 x 30 mm / 20-1/2" x 1-5/8" x 1-3/16".