Abstract: A loader, especially a bucket loader for underground use in mining operations, comprising a rear car carrying the propulsion unit including the hydraulic pump and the driver's station, and a front car coupled to the rear car by a hinge joint and carrying the bucket and the hydraulic system for operating same. The rear car is formed by a chassis stiffly joined to the rear axle, which chassis has a stiff bulkhead serving for the mounting of the motor and transmission assembly. The motor and transmission assembly is disposed on a secondary frame which has also a bulkhead that can be fastened to the bulkhead of the chassis, from which on both sides of the motor and transmission assembly longitudinal girders project, between which the motor and transmission group is mounted.