Product Description: Special demand for rubber testing abrasion resistance, wear a long time under the applicable tires, tank tracks, sole ... more demanding durability products, test data subject with weight scale use technical parameters : Specimen: diameter 63.5mm, diameter 12.7mm, thickness 12.7mm, length 220mm, hardness 60-70 Wheel: D150mm, W25mm, size 36 # combined degree specimen shaft speed: BS 250 ± 5r/min, GB76 ± 2r / min Load: 21b, 61b balance weight: 2.5kg Counter: 0 ~ 999,999 (6 digits) Dimensions: 580 × 520 × 460mm (L × W × H) Weight: 1 ∮, AC 220V, 3A standard: BS -903, GB/T-1689