400cc Hydraulic Motor 2 Bolt Rhomb Flange Pilot 14T Spline Shaft 31.75mm 101.6mm
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400cc Hydraulic Motor 2 Bolt Rhomb Flange Pilot 14T Spline Shaft 31.75mm 101.6mm

This 400cc Hydraulic Motor features a 2 Bolt Rhomb Flange Pilot and a precision 14T Spline Shaft (31.75mm/101.6mm), a professional hydraulic drive core component for industrial machinery. It delivers stable high-torque output and smooth hydraulic transmission, with its standardized flange and spline shaft design ensuring firm installation and excellent compatibility, enabling quick on-site assembly and replacement for various hydraulic systems.
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Product Introduction

Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of 400cc hydraulic motor 2 bolt rhomb flange pilot 14t spline shaft 31.75mm 101.6mm 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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Specification Parameters

 

psd1
Type Hydraulic Drive Motor
Manufacturer XLF Hydraulic
Model No. BMSY-400-E2B-F-SU
Size 400 Ml/r
Replace Danfoss OMS Series
Flange 2-hole Flange
Shaft 31.75mm Spline Shaft 14T
Oil Port 7/8-14 UNF
Drain 7/16-20 UNF
Application Any Place Need Hydraulic Drive
Highlight 400ml/r 400cc Hydraulic Motor, Pilot 101.6mm 400cc Hydraulic Motor, Hydraulic Motor 2 Bolt Rhomb Flange

Product Overview

 

This 400cc hydraulic motor adopts an innovative rhombic double-bolt flange mounting design and is equipped with a 14-tooth spline shaft (31.75mm in diameter, 101.6mm in length). It is specially designed for application scenarios with limited space but requiring high torque output. This product combines a compact installation structure with reliable performance, and is particularly suitable for industrial equipment that requires precise transmission and stable operation.

 

Features and Advantages

 

Compact and Innovative Design
• Space Optimization: Unique diamond-shaped double-bolt flange design, saving 40% installation space compared to traditional four-bolt flanges
• Precise Positioning: Built-in φ125mm locating spigot ensures installation coaxiality, reducing vibration and wear
• Spline Advantage: 14-tooth involute spline shaft (compliant with ISO 4156 standard) with a load-carrying capacity 3-5 times higher than that of a flat key

Efficient and Stable Performance
• High Pressure and Efficiency: At a working pressure of 210bar, volumetric efficiency ≥94% and mechanical efficiency ≥90%
• Low-Speed Performance: Optimized flow distribution design ensures stable operation at low speeds without crawling
• Thermal Balance: Built-in spiral flow channel design improves heat dissipation efficiency and reduces temperature rise by 15-20%

Durable and Reliable Structure
• Reinforced Bearings: Combination of large-diameter tapered roller bearings and deep groove ball bearings for balanced axial and radial load-carrying capacity
• Impact-Resistant Design: Optimized R angle at the spline root reduces stress concentration by 30% and enhances impact fatigue life
• Anti-Corrosion Treatment: External surface phosphating + epoxy resin coating, with salt spray resistance test ≥500 hours

Maintenance Convenience
• Modular Sealing: All seals can be replaced from the outside without complete disassembly
• Adjustment-Free Design: Factory preset clearance, no adjustment required during use
• Long-Life Design: B10 life ≥10,000 hours (under rated working conditions)

 

Application fields

 

Typical application scenarios
• Construction machinery: small roller drive, concrete mixing and conveying system, paver feeding system
• Agricultural machinery: drive for the header of large harvesters, propulsion system for silage machines, rotary drive for sprinkler equipment
• Material handling: belt conveyor drive, screw conveyor, bucket elevator
• Special vehicles: rotating platform of aerial work vehicles, winch drive of wrecker trucks, brush drive of road sweepers
• Industrial equipment: rotary kiln drive, mixer drive, valve actuator

 

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Specifications

 

 

Type BMS
BMSE
80
BMS
BMSE
100
BMS
BMSE
125
BMS
BMSE
160
BMS
BMSE
200
BMS
BMSE
250
BMS
BMSE
315
BMS
BMSE
375
Geometric displacement
(cm3 /rev.)
80.6 100.8 125 157.2 200 252 314.5 370
Max. speed (rpm) cont. 800 748 600 470 375 300 240 200
int. 988 900 720 560 450 360 280 240
Max. torque (N·m) cont. 190 240 310 316 400 450 560 536
int. 240 300 370 430 466 540 658 645
peak 260 320 400 472 650 690 740 751
Max. output (kW) cont. 15.9 18.8 19.5 15.6 15.7 14.1 14.1 11.8
int. 20.1 23.5 23.2 21.2 18.3 17 18.9 17
Max. pressure drop (MPa) cont. 17.5 17.5 17.5 15 14 12.5 12 10
int. 21 21 21 21 16 16 14 12
peak 22.5 22.5 22.5 22.5 22.5 20 18.5 14
Max. flow (L/min) cont. 65 75 75 75 75 75 75 75
int. 80 90 90 90 90 90 90 90
Max. inlet pressure (MPa) cont. 25 25 25 25 25 25 25 25
int. 30 30 30 30 30 30 30 30
Weight (kg) 9.8 10 10.3 10.7 11.1 11.6 12.3 12.6

 

* 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.

 

Detailed Specifications

 

model number BMSY-400-E2B-F-SU
displacement 400 ml/r
flange 2 - hole flange, pilot 101.6*9.4
shaft 31.75 mm splined shaft 14T
oil port 7/8-14 UNF
drain 7/16-20 UNF
rotation Standard
paint Black
replace Danfoss OMS

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