Overview

This technical document comprehensively details hydraulic disc brakes, motor-brakes, and associated hydraulic valves manufactured by M+S HYDRAULIC. It covers product specifications, mechanical and hydraulic parameters, installation guidelines, ordering codes, and application recommendations for various industrial and agricultural machinery.

1. Product Range and Applications

• Hydraulic disc brakes compatible with multiple hydraulic motor types (MP, MR, MS, MSS, MSV, MTS, MTV, MVS).
• Hydraulic motor-brakes including B/MR, MT/B, MTM/B, SW, TW series.
• Accessories such as overcenter valves, switch valves, crossover and cross port relief valves.
• Applications span heavy machinery, mining, agriculture, conveyors, wheel drives, material handling, door openers, and swing drives.

2. Hydraulic Disc Brakes Specifications

• Torque Ratings: Static torque ranges from ~174 to 5665 daNm depending on model and size.
• Pressure Ratings: Operating pressures up to 300 bar (4350 PSI); drain space pressures between 3.5 and 7.35 bar.
• Oil Requirements: Mineral-based hydraulic oils (HLP or HM) recommended; viscosity 20-75 mm²/s nominal, operating range -40°C to 140°C.
• Maintenance: Initial oil change after 50-100 hours, then every 500-1500 hours; friction discs and separators require mineral oil lubrication.
• Mounting: Flange attachments with specified tightening torques (e.g., M12x30 screws at 7 daNm), standardized port sizes (G¼), and shaft dimensions.

3. Mechanical Interfaces

• Various shaft types: straight keys, tapered keys, splined shafts conforming to DIN and ANSI standards.
• Internal spline data with precise pitch diameters, pressure angles, and tooth profiles.
• Load curves provided for torque vs. RPM, designed for B10 bearing life of 3000 hours at 200 RPM.

4. Ordering and Identification Codes

• Structured order codes indicating brake type, size, shaft type, and special features (e.g., LB/288 series suffixes for shaft types).
• LBS and LBV series codes specify size and shaft configuration.

5. Important Notes and Recommendations

• Brakes delivered without oil; lubrication mandatory after assembly.
• Maximum permissible output torque for shafts must not be exceeded to prevent damage.
• Color customization available on request.
• Specifications subject to change without notice.

6. Additional Components and Features

• Descriptions of overcenter valves, switch valves, and relief valves for brake control systems.
• Special motor-brake features and application calculation guidelines included.

7. Hydraulic Disc Brakes - Output Shaft Extensions and Protection

• Multiple shaft types: straight, tapered (1:10), splined shafts per DIN 6885 and ANSI B92.1.
• Common diameters: 32 mm to 60 mm with max torque up to 210.7 daNm for tapered shafts.
• Paint options: unpainted, painted, corrosion-protected per customer requirements.

8. Brake Types and Design Codes

• Disc brakes for short and very short motors (MSS, MSV), MTS/MTV/MVS motors.
• Brake types include LBS/314, LBV/314, LBS/315, LBV/315, LBS/313, LBS/316, and B...R wet brakes for agricultural/construction vehicles.
• Each type linked to static torque and performance data.

9. Hydraulic and Mechanical Specifications

• Static torque at zero pressure; opening pressures specified in bar and PSI.
• Oil volume and pressure requirements for brake release and drainage; drain line mandatory.
• Lubrication with mineral oils HLP (DIN 51524) or HM (ISO 6743/4); brakes delivered dry.
• Tightening torques for screws and standardized hydraulic ports detailed.

10. Dimensional and Mounting Data

• Detailed component dimensions, shaft extensions, mounting hole patterns with tolerances.
• Permissible radial shaft loads and bearing life curves with safety factors.

11. Internal Spline and Material Specifications

• Internal spline per ANSI B92.1-1976, class 5; pitch diameter, major/minor diameters, fillet radii specified.
• Material: 20 MoCr4 EN 10084 steel, surface hardened to HV=750±50, case depth ~0.7 mm.

12. Special Brake Types (B...R Series)

• Wheel-mounted brakes for low-speed agricultural and construction vehicles.
• Compact design preserving bearing life under high radial shaft loads.
• Static torque, release pressures, max operating pressures, speed limits specified.
• Hydraulic ports conform to SAE and ISO standards.

13. Critical Notes and Recommendations

• Friction discs and separators require mineral oil lubrication; brakes delivered without oil.
• Drain lines mandatory for hydraulic function and pressure management.
• Never exceed permissible output torque for shafts.
• Custom paint colors available.

14. Hydraulic Disc Brakes B...T Series

• Static torque: 50-85 daNm; operating pressures: initial release 16-17 bar, full release 19-20 bar, max 240 bar.
• Max speed: 60 RPM; continuous radial shaft load 1000 daN, max 2150 daN.
• Wet operation with mineral-based hydraulic fluids.
• Detailed shaft and taper dimensions; drainage ports specified.
• Applications: wheel mounting on low-speed agricultural/construction vehicles.

15. Hydraulic Motor-Brakes B/MR Series

• Displacement: 80.3 to 397 cm³/rev; max speeds 375-600 RPM.
• Max torque: 175 to 56 daNm; max output power ~14.7 kW.
• Max pressure drop: 225 bar; oil flow up to 75 l/min.
• Static brake torque: 10-55 daNm.
• Recommended fluids: mineral-based anti-wear HM type; filtration ISO 20/16 (25 micron or better).
• Operating temperature: -40°C to 140°C; max system temp 82°C.
• Intermittent operation limits: max 10% per minute; peak loads max 1% per minute; speed and pressure peaks must not coincide.
• Drain line mandatory; pre-filling and moderate run-in recommended.
• Multiple shaft and flange mounting options; shaft load limits specified.

16. Permissible Shaft Loads

• Radial shaft loads depend on RPM, shaft extension length, and shaft type.
• Example: max 800 daN at speeds below 200 RPM, with reductions at higher speeds or longer extensions.

17. Hydraulic Fluid and Filtration Recommendations

• Use mineral-based anti-wear oils (HLP or HM) per DIN 51524 or ISO 6743/4.
• Filtration cleanliness ISO 20/16 or better; nominal filtration 25 microns or finer.
• Minimum viscosity 13 mm²/s at 50°C; max system temp 82°C.

18. Order Code and Options

• Codes specify displacement, shaft type, extensions, mounting flange, special features.
• Shaft standards include DIN, BS, SAE; flange options include oval mounts with 2 or 4 holes.

19. Critical Notes and Limitations

• Do not exceed permissible output torque.
• Intermittent speed and pressure peaks must not coincide.
• Drain line mandatory.
• Consult factory for speeds below minimums.

20. Graphical Data Summary

• Performance curves show torque vs. speed, pressure drop vs. oil flow, shaft load vs. bearing life.
• Example: bearing life 1000 hours at 60 RPM with 1000 daN radial load.

21. Hydraulic Motor-Brake MT/B and MTM/B Series

• Displacement: 160 to 724 cm³/rev; continuous speeds up to 1000-1250 RPM; intermittent up to 1370 RPM.
• Continuous torque: 72 to 172 daNm; intermittent and peak torque higher.
• Max output power up to 240 kW intermittent.
• Max pressure drop continuous 40 bar; intermittent 54 bar.
• Max oil flow continuous 250 lpm; intermittent 350 lpm.
• Permissible shaft loads with bearing life B10 of 3000 hours at 200 RPM.
• Fluid: mineral-based HLP or HM anti-wear oils; temperature -40°C to +140°C; max system temp 82°C.
• Viscosity 20-75 mm²/s nominal; min 13 mm²/s at 50°C.
• Filtration ISO 20/16 or better.
• Intermittent operation limits: max 10% per minute; peak loads max 1%; speed and pressure peaks not simultaneous.
• Drain line mandatory; synthetic fluids require factory consultation.
• Design: disc valve, roll-gerotor with side ports; shaft options: straight, splined, tapered.
• Mounting: flange dimensions, bolt patterns, shaft tolerances detailed.
• Applications: skid steer loaders, trenchers, conveyors, woodworking, mining, road building, agriculture, special vehicles.

22. Motor-Brakes SW500B350V and TW500B350V

• Torque: 133 to 210 daNm; displacement ~475 cm³/rev; max speeds 114-135 RPM.
• Max pressure drop 170-250 bar; max oil flow 7-9.4 lpm.
• Starting torque 20-25 daNm; static brake torque up to 245 daNm.
• Valve pilot ratio 4.25:1.
• Shaft types: straight keys, tapered (1:8, 1:10), splined per SAE, ANSI, DIN standards.
• Mounting flange dimensions and bolt patterns specified.
• Permissible shaft loads with bearing life B10 of 2000-3000 hours at 40-100 RPM.
• Function diagrams show torque vs. speed and flow at various pressures.
• Order codes specify type, displacement, shaft, valve, special features.
• Valve options include overcenter valves with brake control (KPBR, KPBS, KPBT, KPBV, KPBW, KPBHR).
• Valve specs: flow rates, max pressures up to 280 bar, pilot ratios, weights, mounting dimensions.
• Critical notes: do not exceed torque limits; drain line must be open; intermittent operation limits apply.

23. Hydraulic Valves for Motors

• Valve types: dual and single valves (KPBS, KPBT, KPBV, KPBW), switch valves (KPWR, KPWS, KPWT, KPWV), crossover relief valves (KPD, KPE series).
• Mounting: direct on motors with screws (M8x35, M10x50, M12x70) per DIN 912 or UNC; tightening torques 2-8 daNm.
• Thread and port types: M14x1.5, M22x1.5, M27x2, M33x2, G1/2, G1/4, 7/8-14 UNF, 5/16-18 UNC, 3/8-16 UNC; O-ring sealing depths specified.
• Flow rates 12 to 250 lpm; pressure ratings 80 to 300 bar.
• Valve weights 0.67 to 3.42 kg.
• Installation notes: proper screw torque, O-ring sealing, some assemblies include additional screws.
• Standards: DIN 912, ANSI B 18.3; pressure tests at 50°C with 32 mm²/s viscosity.
• Recommendations: match valve to motor and flow/pressure needs; respect sealing depths.

24. Dual Crossover Relief Valves (KPD...W Series)

• Designed for RW, HW, HP, HR, RK, GHL motor series.
• Pressure ratings 100-250 bar; flow rates 5-40 lpm.
• Ports with BSPP, Metric, Unified Inch threads; O-ring sealing.
• Assembly torque 8 daNm.
• Graphs show pressure vs. flow characteristics.
• Paint options: none, painted, corrosion-protected.

25. Vehicle Drive Calculations and Hydraulic Motor Loading

• Formulas and tables for acceleration force, rolling resistance, grade resistance, tractive effort, motor torque.
• Rolling resistance coefficients for surfaces: concrete, asphalt, macadam, snow, mud, sand.
• Grade resistance angles and friction factors for tire/surface combinations.
• Radial shaft loading calculated as sum of motion and weight forces per wheel.

26. Drainage Space and Pressure

• Drain space oil drainage critical for cleaning, cooling, seal life.
• Drainage can be connected in parallel or series.

27. Warranty and Liability

• 24-month warranty on new products; 12 months on spare parts.
• Covers defects in material/workmanship; excludes damage from misuse, improper installation, normal wear.
• Claims must be promptly notified in writing.
• Warranty remedies limited to repair, replacement, or credit; excludes cash refunds and consequential damages.

Critical Information Summary

• Pressure ratings: 80 to 300 bar depending on component.
• Flow rates: 5 to 250 lpm.
• Torque ratings vary widely by brake and motor type.
• Oil: mineral-based HLP or HM anti-wear hydraulic fluids recommended.
• Filtration: ISO 20/16 or better; nominal 25 microns.
• Temperature range: -40°C to +140°C; max system temp 82°C.
• Drain lines mandatory for brakes and motor-brakes.
• Permissible shaft loads and bearing life curves provided to ensure durability.
• Order codes specify detailed configurations including shaft type, brake/motor model, valve options.
• Paint and corrosion protection customizable.

This document is an essential reference for engineers and technicians specifying, installing, and maintaining hydraulic disc brakes, motor-brakes, and valves in demanding industrial and agricultural applications, ensuring safety, reliability, and optimal performance.