An industrial machine is provided that includes a hybrid powertrain. The hybrid powertrain includes a PTI/PTO (power-take-in/power-take-off) system that can passively decouple an internal combustion engine from other powertrain components. The hybrid powertrain allows the industrial machine to operate in power delivering modes, in which an internal combustion engine and/or an electric motor(s) are prime movers, a fully electric mode in which the electric motor(s) is the prime mover(s), and power generating modes, in which either the internal combustion engine or load inertia drives the electric motor(s) as an electrical power generator.

A fire apparatus includes a chassis, a cab coupled to the chassis, a pump system coupled to the chassis and positioned at least partially behind the cab, and a driveline. The pump system includes a pump. The driveline includes a prime mover positioned beneath the cab and coupled to the chassis, a transmission, and a sandwiched power take-off unit positioned between (a) the prime mover and (b) the transmission and the pump system. The sandwiched power take-off unit facilitates operating the pump independent of a gear selection of the transmission and a ground speed of the fire apparatus.

A sandwiched PTO unit includes a main drive shaft configured to be positioned between a prime mover and a transmission of the vehicle, a PTO shaft, a gear train including a plurality of gears coupling the main drive shaft to the PTO shaft where the gear train includes a drive gear defining an aperture that receives the main drive shaft, and a bearing received by the aperture and positioned between the main drive shaft and the drive gear.