3660/3620/B is produced in volume with flexible MOQ; mixed batches and neutral-pack/OEM options are supported for distributors and OEMs.
Key specs: d = 20.638 mm, D = 61.912 mm, B = — mm, Cr = 82 kN, Cor = 89.8 kN. A complete datasheet is generated per model.
Typical buyers are in mining, cement, steel, wind, agriculture, material handling and general machinery manufacturing.
As a direct factory source, 3660/3620/B offers competitive ex-works pricing with short lead times versus imported brand equivalents.