BM2 Series Hydraulic Motors: In-Depth Performance Review and Specification Analysis
BM2 orbital motor review: specs, torque, displacement, and how it stacks up against BM1, BM3, and OEM equivale…
| Parameter | Specification |
|---|---|
| Manufacturer / Brand | Olive Branch Hydraulics |
| Series / type | BMPH H-port shaft-distribution orbital motor |
| Nominal catalogue size range | 50-500 cc/rev; configuration-specific |
| A/B port centre distance | 45.7 ±0.2 mm |
| Flange face to port centre | 42.7 mm |
| Mounting options | F5 two-hole; F6/F7 square threaded-hole |
| Catalogue installation length H | 143-223 mm, model-specific |
| Shaft options / supply | A7-A13; EXW Hebei, China |
The BMPH hydraulic motor from Olive Branch Hydraulics is an H-port gerotor motor listed in 11 nominal catalogue sizes, from 50 to 500 cc/rev. It is built in Hebei, China, and supplied EXW for agricultural, forestry and construction drives.
BMPH100, BMPH-100 and BMPH 100 identify the nominal 100 size in an enquiry. The external code BMPH-100-H2-K-S belongs to a different manufacturer's ordering system. We confirm every order against your drawing and duty point before supply.
Four inputs decide the right BMPH motor: displacement, flange, shaft code and port geometry. Pressure, torque and speed ratings are confirmed per displacement in our quotation, checked against your duty point.
| Catalogue size (cc/rev) | H1 (mm) | H (mm) |
|---|---|---|
| 50 | 9 | 143 |
| 63 | 11.5 | 146 |
| 80 | 14.5 | 149 |
| 100 | 18 | 152 |
| 125 | 22.5 | 157 |
| 160 | 29 | 163 |
| 200 | 35.5 | 170 |
| 250 | 44.5 | 179 |
| 320 (ordering chart lists 315; confirmed per order) | 56 | 190 |
| 400 | 72 | 206 |
| 500 | 89 | 223 |
Common descriptions include H-port hydraulic motor, aligned side-port orbital motor, spool-valve gerotor motor and LSHT motor. International enquiries may use motor hidráulico BMPH, moteur hydraulique BMPH or гидромотор BMPH.
| Catalogue model | Common enquiry spellings |
|---|---|
| BMPH-50 | BMPH50 / BMPH 50 / BMPH-50 |
| BMPH-63 | BMPH63 / BMPH 63 / BMPH-63 |
| BMPH-80 | BMPH80 / BMPH 80 / BMPH-80 |
| BMPH-100 | BMPH100 / BMPH 100 / BMPH-100 |
| BMPH-125 | BMPH125 / BMPH 125 / BMPH-125 |
| BMPH-160 | BMPH160 / BMPH 160 / BMPH-160 |
| BMPH-200 | BMPH200 / BMPH 200 / BMPH-200 |
| BMPH-250 | BMPH250 / BMPH 250 / BMPH-250 |
| BMPH-320 | BMPH320 / BMPH 320 / BMPH-320 |
| BMPH-400 | BMPH400 / BMPH 400 / BMPH-400 |
| BMPH-500 | BMPH500 / BMPH 500 / BMPH-500 |
Dynamic Fluid Components' 2019 crossover catalogue lists the following original-reference pairs. These identify existing motors for comparison; they are not Olive Branch part numbers or approval of a direct replacement.
| External Dynamic reference | Danfoss reference | Char-Lynn reference |
|---|---|---|
| BMPH-50 H2-K-S | 151-2001 | 101-1033 |
| BMPH-80 H2-K-S | 151-2002 | 101-1034 |
| BMPH-100 H2-K-S | 151-2003 | 101-1035 |
| BMPH-125 H2-K-S | 151-2004 | — |
| BMPH-160 H2-K-S | 151-2005 | 101-1036 |
| BMPH-200 H2-K-S | 151-2006 | 101-1037 |
| BMPH-250 H2-K-S | 151-2007 | 101-1038 |
| BMPH-315 H2-K-S | 151-2008 | 101-1039 |
| BMPH-400 H2-K-S | 151-2009 | 101-1040 |
Approve a replacement only after checking flange, shaft, ports, case drain, seal, working pressure, flow, speed and torque. The original reference size 315 must not be automatically relabelled as our dimension-chart size 320.
Olive Branch Hydraulics manufactures hydraulic gear pumps, orbital motors and related components in Hebei, China. Every BMPH order ships EXW once you have signed off the drawing and duty point.
They are spelling variants of the nominal 100 size, not a complete configuration. BMPH-100-H2-K-S is an external manufacturer reference and must be checked separately.
We handle these as comparison enquiries only, referenced through the Dynamic catalogue entry BMPH-100 H2-K-S. They are not Olive Branch SKUs, and we do not claim proven direct interchangeability, so send the original nameplate or drawing for a dimensional comparison.
Not by default. Our ordering chart lists 315 and our dimension chart lists 320, so we confirm the displacement and H dimension in writing for each order.
F5 uses a two-hole diamond pattern with an 82.5 mm pilot, and F6/F7 uses a square threaded-hole pattern with a 44.4 mm pilot. Match the pilot diameter and bolt pattern on your mating part.
No. The photos illustrate the two-bolt and four-bolt variants only, not a specific supplied displacement.
They are stated per displacement in your quotation, matched to your duty point. We do not publish generic ratings that have not been checked against your application.
Samples and private-label packaging can be quoted per configuration. Quantity, sample cost, schedule and packaging are stated on the confirmed quotation.
Send your displacement or reference code, flange, shaft code, duty point and quantity breaks. We will return a tiered EXW Hebei quotation with sample terms and the confirmed BMPH drawing for your approval.
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