Orbital hydraulic motor

Danfoss OMT T 315 151B3045 orbital hydraulic motor

Model: 151B3045 · Danfoss
Geometric displacement (cm³/rev)326.3
Drain port connection1/4" BSP
Speed feedbackMechanical tacho-drive connection
Shaft typeCylindrical keyed shaft
Shaft sealNBR - Standard
Mounting flangeStandard four-bolt square flange

Description

Danfoss OMT T 315, part number 151B3045, is a fixed-displacement orbital hydraulic motor with 326.3 cm³/rev geometric displacement. This execution provides mechanical tacho-drive connection for rotational-speed monitoring.

The motor has a 40 mm cylindrical keyed output shaft, a 125 mm locating pilot and a 160 mm mounting bolt circle. Main ports are 3/4" BSP; the drain connection is 1/4" BSP. The shaft, flange and ports must match the mating installation.

The mechanical tacho-drive connection allows rotational speed to be registered using an appropriate attached device. The local reference combines the confirmed hydraulic data, main output shaft and port details with the manufacturer tacho-drive principle and the exact factory-bound tacho assembly drawing. The drawing gives the rear-drive interface and the size-specific overall assembly lengths. Check the applicable part-number row before installation.

Select the operating point from the applicable size performance diagram and observe shaft-load, drain-line and shaft-seal pressure limits. Continuous, intermittent and peak limits describe separate duties. They must not be combined into one simultaneous maximum-duty point, and differential pressure is distinct from maximum inlet pressure.

Representative Danfoss OMT series photograph supplied on this article’s manufacturer page; shaft, ports, mounting, sensor arrangement and displacement may differ. Use the technical reference for the confirmed execution.

Full specifications

Technical specifications
Product type Orbital hydraulic motor
Geometric displacement (cm³/rev) 326.3
Speed feedback Mechanical tacho-drive connection
Shaft type Cylindrical keyed shaft
Drain port connection 1/4" BSP
Main port connection 3/4" BSP
Port arrangement Sideport - staggered
Port thread standard BSP
Shaft seal NBR - Standard
Check valves Yes
Factory model code OMT-0315-A-NN-G21-AD-1D-A31-A-A-1B-1-N-TA-NNNNN-NN-NN-NN-SP-NNN
Front bearing type Tapered roller bearing
Manufacturer Danfoss
Manufacturer part number 151B3045
Motor version OMT T
Orbital gearwheel set Geroler
Product family OMT
Rear bearing type Tapered roller bearing
Shaft key Rectangular key, A12 x 8 x 70 mm, DIN 6885
Shaft specification Dia. 40 mm, M12 x 1.75-6H thread in shaft end
Valve system Disc valve with valve drive
Bolt circle diameter (mm) 160
Nominal motor size 315
Pilot diameter (mm) 125
Shaft diameter (mm) 40
Technical specifications
Mounting flange Standard four-bolt square flange