SUPPORT AS 1884429 - Caterpillar

Tread bar (grouser) penetration and therefore traction will be better when running on narrower belts as opposed to wider belts. The surface contact area on the ground (footprint) with even narrow belts will always exceed the area on the ground of tires on a comparable wheel tractor. The balance between slippage on the ground and flotation must be carefully considered when the tractor is equipped with wide belts. There are three Standard belt widths available: 635 mm (25 in), 762 mm (30 in), and 889 mm (35 in).In addition to the standard belt configuration there are an additional three types of belts available.Special Application Belts
Special Application belts have 96 grousers with grousers that are 38 mm (1.5 in) tall and 70 mm (2.75 in) wide. Standard belts have 72 tread bars that are 63.5 mm (2.5 in) tall and 38 mm (1.5 in) wide. The grousers are the only difference between the Standard and Special Application belts.The principle advantages to the Special Application belts is the reduction of grouser bending under high loads and tractor vibration at higher speeds on hard ground or while roading. There is also a certain amount of drive train protection provided by the Special Application belts as they will slip on the ground under extreme drawbar loads. In wet conditions, the Special Application belts will not self-clean between the tread bars as well as the Standard belts will. Any belt that is packed with material between the tread bars will have significantly reduced traction.Inside Protected Belts
Inside Protected belts provide inside diameter protection to the belt. Inside Protected belts have a breaker ply of protective cables inside zero degree cables (1). The zero degree cables are parallel to the belt's axis. Breaker plies (2) are aligned at varying degrees to the zero degree cables. Inside Protected belts are for applications that are likely to result in damage to the inside diameter rubber and zero degree cables. Work in pebbly or alluvial (sandy/muddy) soils should be such an application. Keeping the zero degree cables intact is essential to getting normal life from a belt.Side Slope Belts
Side Slope belts are for applications involving a substantial amount of work on inclines, slants, or pitches. In some cases, guide block (not tread bar) wear will determine belt life. For these applications, Side Slope belts with 48 guide blocks are available. All other belt types have 36 guide blocks. Slide Slope belts have standard grousers and are not protected on the inside diameter.