4 Bolt Rhomb Flange Hydraulic Drive Motor 31.75mm Splined 14-DP12/24
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4 Bolt Rhomb Flange Hydraulic Drive Motor 31.75mm Splined 14-DP12/24

This 4 Bolt Rhomb Flange Hydraulic Drive Motor features a 31.75mm Splined shaft with 14-DP12/24 specification, a professional hydraulic power component designed for industrial hydraulic transmission systems. Adopting standard 4-bolt rhomb flange mounting, it ensures firm connection and stable power output, with high-precision splined structure for smooth transmission. It is a direct replacement part with excellent compatibility, easy to install and adapt to various hydraulic equipment.
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Product Introduction

Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of 4 bolt rhomb flange hydraulic drive motor 31.75mm splined 14-dp12/24 in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.

 

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Technical specifications

 

psd1
Type Hydraulic Drive Motor
Manufacturer XLF Hydraulic
Model No. Model No.
Size 400 Ml/r
Shaft 31.75 Spline Key
Oil Port 7/8-14 UNF
Drain 7/16-20 UNF
Application Any Place Need Hydraulic Drive
Highlight Hydraulic Drive Motor 400ml/r, 3000PSI Hydraulic Drive Motor, 4 Bolt Rhomb Flange Hydraulic Motor

Core Product Overview

 

This product is a hydraulic motor specially designed for heavy-duty hydraulic drive scenarios with limited space, high reliability requirements, and high power density. Its most notable feature is the adoption of a unique four-bolt diamond-shaped flange mounting interface, along with a spline output shaft of 31.75mm (1.25 inches) with 14 teeth and a diametral pitch of 12/24. This design ensures that the motor can achieve extremely compact installation, excellent torsional stiffness, and efficient power transmission under harsh working conditions, making it an ideal power core for driving various types of heavy-duty rotating equipment.

 

Core Advantages and Features

 

• ⛓️ Excellent structural rigidity: The four-bolt diamond flange mounting surface provides excellent anti-torsional and anti-bending performance, which can effectively handle heavy loads and impact loads, ensuring the long-term stable operation of the transmission system.
• 🔧 Efficient spline connection: The spline shaft design of 31.75mm 14-DP12/24 achieves greater torque transmission capacity and higher centering accuracy. Compared with ordinary flat key connections, the reliability is significantly improved.
• 📐 Ultimate space saving: The diamond flange design occupies less space than traditional square or round flanges, making it particularly suitable for integrated installation in compact equipment layouts.
• ⚙️ Wide working condition adaptability: High-quality bearings and seals are adopted, and the internal flow channel is optimized to ensure high efficiency and low heat generation within a high pressure and wide speed range.
• 🛡️ Long service life: The core friction pair undergoes special hardening treatment, combined with an optimized hydraulic balance design, resulting in extremely low wear, ensuring an ultra-long service life and low maintenance requirements.

 

Application fields

 

• Engineering and construction machinery: drums that drive concrete mixers, small winches, and hydraulically driven wheels.
• Agricultural machinery: serving as the driving unit for the header of combine harvesters and the ground wheels of seeders.
• Industrial automation: driving heavy-duty slewing platforms, indexing tables, mixers, or conveyor rollers.
• Special-purpose vehicles: used in auxiliary operating devices of sanitation vehicles and wreckers.
• Marine and offshore engineering: power sources for deck machinery and winches.

 

Detailed Specifications

 

model number BMK2-400-E6-FE-SU
displacement 400 ml/r
flange 4 - hole standard mounting
shaft 31.75 mm straight shaft, splined 14-DP12/24
oil port 7/8-14 UNF
drain 7/16-20 UNF
rotation Standard
paint Black
replace Char-lynn 2K

 

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Specifications

 

Type BMK2 BMK2 BMK2 BMK2 BMK2 BMK2 BMK2 BMK2 BMK2 BMK2
65 80 100 125 160 200 250 315 400 475
Geometric displacement
(cm3 /rev.)
65 80 100.9 129.8 156.8 193.4 242.5 304.3 390.8 485
Max. speed (rpm) cont. 835 800 742 576 477 385 308 246 191 153
int. 990 980 924 720 713 577 462 365 287 230
Max. torque (N·m) cont. 185 235 295 385 455 540 660 765 775 845
int. 245 345 445 560 570 665 820 885 925 930
Max. pressure drop (MPa) cont. 20.5 21 21 21 20.5 20.5 20.5 21 15.5 12
int. 27.5 31 31 31 26 26 26 24 17 14
peak 31 31 31 31 31 31 31 31 20.5 17
Max. flow (L/min) cont. 55 65 75 75 75 75 75 75 75 75
int. 65 80 95 95 115 115 115 115 115 115
Weight (kg) 9.2 9.4 9.7 10 10.2 10.5 11 11.5 12 12.4
* Continuous pressure :Max. value of operating motor continuously.
* Intermittent pressure :Max. value of operating motor in 6 seconds per minute.
* Peak pressure:Max. value of operating motor in 0.6 second per minute.

 

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