Part name: Three-row cylindrical roller slewing bearing; Part no.: 191.32.3855.000.41.1522; OD = 4136.4mm; ID = 3658mm; T = 200mm. Module = 18; Teeth = 227 Radial variation = +9; Addendum = -1.8. Material: 42CrMo. best regards Helen email: longda(at)ldb-bearing.com