Bosch Rexroth | MV037-A2-1S-020-31-B1-TBB-000
MV037-A2-1S-020-31-B1-TBB-000
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The MV037-A2-1S-020-31-B1-TBB-000 motor is part of the MV Rineer High Torque Vane Motors series from Bosch Rexroth and is intended for hydraulic automation where compact, high-torque output is required. It displaces 20 in³ per revolution (328 cc/rev), so each shaft turn moves a fixed volume that defines its torque potential. Continuous running is allowed up to 1000 rpm, and the unit withstands operating pressures to 3000 psi (207 bar) for demanding closed-loop circuits. Fluid is routed through a 1-1/2 in Code 61 four-bolt, two-port block that maintains flow while supporting rigid piping. The housing mounts with an SAE J744 152-4 flange, and a 6.000 in (152.4 mm) pilot centers the motor to minimize shaft misalignment. Total weight is 97 lb (44 kg), which affects frame design and lifting requirements during installation.
Attachment to the machine frame uses 1/2-13 UNC-2B bolts, and a 1.00 in (25.4 mm) thread depth secures the casing against hydraulic forces. NBR (Buna) O-rings seal the main body interfaces, with matching NBR rings in the pedestal area to keep compatibility with petroleum-based fluids. A TCN radial lip seal retains oil around the output shaft during continuous duty. The shaft geometry follows SAE J744 44-4 so it mates with standard couplings, and power transfer occurs through an external involute, flat root side fit spline cut with 13 teeth at 8/16 DP and a 30° pressure angle. This spline meets ANSI B92.1-1996 Class 7 tolerance, providing controlled backlash for heavy-duty service. Together, these mechanical and sealing details create a secure drive interface suited for industrial and mobile hydraulic systems.
Technical Specifications
Bolt Thread Depth
1.00 in (25.4 mm)
Displacement
20 in3/rev (328 cc/rev)
Main Body O-rings Material
NBR (Buna)
Max Continuous Speed
1000 rpm
Max Operating Pressure
3000 psi (207 bar)
Mounting Bolt Size
1/2-13 UNC-2B
Mounting Flange
SAE J744 152-4
Pedestal O-rings Material
NBR (Buna)
Pilot Diameter
6.000 in (152.4 mm)
Port Configuration
1-1/2 in Code 61 4-bolt, 2-port
Shaft Seal Type
TCN Radial Lip
Shaft Standard
SAE J744 44-4
Spline Form
External Involute, Flat Root Side Fit
Spline Specification
13T, 8/16 DP, 30° PA
Spline Standard
ANSI B92.1-1996 Class 7
Weight
97 lb (44 kg)
1620 Old Apex Road
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