BMRW Wheel Mount Orbital Hydraulic Motor 50-400 Cc/rev

Product Overview: BMRW Wheel Mount Orbital Hydraulic Motor

The BMRW wheel mount orbital hydraulic motor is an LSHT spool valve wheel motor with a recessed F8 flange. It comes in 10 displacements: BMRW50, BMRW63, BMRW80, BMRW100, BMRW125, BMRW160, BMRW200, BMRW250, BMRW305 and BMRW400.

Olive Branch Hydraulics manufactures the series in Hebei, China, and supplies it EXW. Buyers often search for it by OMRW N reference codes or as a tapered shaft wheel motor.

Interchange note: OMRW N and BMRW N are related names. They are not a confirmed exact interchange. BMRW dimensional figures below come from pages 30-31 of our own 2026 catalogue.

Key Features

• Recessed F8 wheel flange: 132 mm square flange with a Ø127.08 mm nominal pilot. It has 4 holes of Ø13.5 mm on a Ø147.6 mm bolt circle.
• Compact body: The housing diameter is Ø100 mm. Dimension H runs 109–172 mm by displacement and is measured from the mounting face to the rear, not as overall length.
• Spool valve orbital design: Low-speed, high-torque layout for wheel drive in industrial and mobile machinery.
• Side ports: Main ports are 50.8 mm apart (2 × 25.4 mm). Options are G1/2 BSP, 7/8-14 UNF O-ring, M22x1.5 or 1/2-14 NPTF.
• Drain: M14x1.5, G1/4, 7/16-20 UNF or no drain. Not every port and drain combination is guaranteed.
• Six shaft codes: A19 and A20 are tapered. A21 and A24 are parallel keyed. A22 and A23 are DP12/24 splines with 14 teeth.
• Reversible rotation: Facing the output shaft, flow in at port A and out at port B turns the shaft clockwise. Reversing the flow turns it counter-clockwise.
• Distinct ordering code: BMRW identifies the wheel-mount motor only. BMPW and the BMRB brake versions are ordered under their own codes.

Technical Specifications: BMRW50–BMRW400 Dimensions

This section covers dimensions only. Torque, pressure, speed and flow ratings for the BMRW series are confirmed per quotation; BMR or external OMRW ratings are not automatically transferred to a BMRW configuration.

Port Ordering Codes

Shaft Options

The 200 ±10 Nm value is the shaft-nut assembly torque. Read the actual drawing for all other shaft dimensions.

Matching Checklist

1. Wheel radial load, axial load and load offset from the mounting face
2. Mounting: F8 pilot and bolt circle; rear clearance against dimension H
3. Shaft code and taper, plus hub nut type
4. Port and drain code, or no drain
5. Rotation direction
6. Continuous and intermittent duty cycle

Why Choose Us

Olive Branch Hydraulics manufactures hydraulic motors and pumps in Hebei; we supply EXW Hebei, China. Every quotation states the full model code, shaft, ports, quantity and EXW Hebei terms in writing.

• Distributors and wholesale buyers: Pricing is quoted by quantity and by the exact codes you plan to carry.
• OEM / ODM projects: Send your hub drawing and wheel load data. We check the shaft, port and drain combination against your drawing before quoting.
• Private label: White-label and custom packaging are available for discussion. Packaging, MOQ and sample terms are set in the quotation.
• Quality and compliance teams: List the inspection records and documentation required for the selected configuration in your RFQ.

FAQ

Is BMRW a direct replacement for OMRW N?

It is not confirmed as one. Compare the flange, shaft and H dimensions with your drawing; the original-reference table below identifies external codes for replacement enquiries.

Does the catalogue list torque, pressure or speed for BMRW?

No. Pages 30-31 give dimensions only, and performance for your duty cycle is confirmed per quotation.

Is 200 ±10 Nm the motor output torque?

No. It is the assembly torque for the A19 M20x1.5 and A20 1-20 UNF shaft nuts only.

Which port codes can be ordered?

P1, P2, P4 and P5. P3 is not listed in this catalogue ordering chart.

Is the 305 size the same as a 315 or 320?

The catalogue uses the nominal designation BMRW305. Its dimensional and duty compatibility with any 315 or 320 motor requires verification.

What is this motor called in other languages?

Spanish: motor hidráulico orbital BMRW para montaje en rueda. French: moteur hydraulique orbital BMRW pour montage sur roue. Russian: колёсный орбитальный гидромотор BMRW.

Call To Action: Request a BMRW Quotation

To get a written EXW Hebei quotation and the matching dimension drawing, send us the model (for example BMRW160), shaft code, port code, rotation, wheel loads with offset, duty cycle and quantity.

OMRW N Original Reference Codes for Replacement Enquiries

Danfoss 2016 technical information page 44 lists these original OMRW N codes. External F1 uses a 35 mm tapered shaft, G1/2 side ports and G1/4 drain; F2 uses a 1¼-inch tapered shaft, 7/8-14 UNF side ports and 7/16-20 UNF drain. These external F1/F2 configuration names are distinct from our F8 flange code.

Reference identities only: they are not Olive Branch Hydraulics SKUs or guaranteed BMRW interchanges. External 315/375 do not establish equivalence to catalogue BMRW305/400. No original code is inferred for BMRW63. Confirm complete interfaces, bearing arrangement, seals, loads and duty before replacement selection.

Photo and Drawing Scope

The unwatermarked Xeriwell BMRW series reference photograph shows a recessed wheel flange and a protected tapered shaft with nut; it does not identify every supplied displacement or shaft option. The two drawings reproduce our 2026 catalogue pages 30–31. Use the confirmed configuration drawing for hub fit and shaft-nut assembly.