Overview

The document provides detailed technical specifications, operating characteristics, and mechanical data for the VT6CR series drive train vane pump. It covers pump configurations, shaft types, porting options, performance parameters, and installation guidelines.

1. Product Identification and Configuration

• Model Code: VT6CR - 022 - 1 R 00 - A 1 0 - A 1 **
• Direction of Rotation: L = Counter-clockwise, R = Clockwise (viewed from shaft end)
• Shaft Types: Keyed (SAE BB or non-SAE), Splined (SAE B, SAE BB)
• Porting Combinations: SAE A, B, C, or none; includes porting adapters
• Seal Classes: S1 (mineral oil), S4 (fire-resistant fluids), S5 (mineral oil and fire-resistant fluids)
• Cam Ring Types: Various based on tooth count and pressure angle

2. Mechanical and Dimensional Specifications

• Detailed shaft dimensions and key sizes for different shaft codes (1, 2, 3, 4, 5) including splined and keyed variants.
• Mounting torque specifications: 117 ft.lbs for certain shafts, 53 ft.lbs (72 Nm) for SAE C adapters.
• Maximum axial load permissible: 800 N (180 lbs).
• Maximum bending moment: 1200 Nm.
• Port and adapter dimensions with metric and imperial units provided.

3. Operating Characteristics

• Volumetric Displacement: Ranges from 0.66 to 6.10 in³/rev (10.8 to 100 cm³/rev) depending on model variant.
• Pressure Ratings: Maximum internal pressure up to 210 bar (3000 psi) for some models; 240 bar (3500 psi) max for others.
• Speed Limits: Maximum recommended speed up to 2500 RPM for certain displacements; caution advised for speeds above 2800 RPM.
• Internal Leakage: Typical leakage rates provided in liters per minute (lpm) and gallons per minute (gpm); operation not recommended if leakage exceeds 50% of theoretical flow for more than 5 seconds.
• Power Loss and Noise Levels: Hydromechanical power loss data at various pressures and speeds; noise levels typically range from 50 to 75 dB(A) with correction factors explained.
• Viscosity Range: Typical operation at 24 cSt; data also provided for 10 cSt and 32 cSt fluids.

4. Performance Data Tables

Tables summarize flow rates (gpm and lpm) at zero and rated pressures, input power requirements (hp and kW) at various pressures and speeds, and volumetric displacement for different pump sizes. These data assist in selecting the appropriate pump model for specific hydraulic system requirements.

5. Installation and Mounting Recommendations

• Mounting torque values specified for different shaft and adapter types.
• Key dimensions and tolerances for shaft coupling to ensure proper fit and alignment.
• Maximum permissible radial and axial loads to avoid premature wear or damage.

6. Material and Fluid Compatibility

• Seal classes indicate compatibility with mineral oils and fire-resistant fluids.
• Cam ring and seal modifications available to suit different fluid types and operating conditions.

Critical Notes and Limitations

• Do not operate the pump for more than 5 seconds at any speed or viscosity if internal leakage exceeds 50% of theoretical flow.
• Maximum axial load is limited to 800 N (180 lbs) to prevent shaft damage.
• Speed and pressure limits must be respected to ensure pump longevity and performance.

Summary

The VT6CR vane pump series offers versatile configurations with multiple shaft and porting options suitable for various hydraulic applications. The document provides comprehensive mechanical dimensions, performance data, and operational guidelines essential for correct selection, installation, and maintenance of the pump to ensure optimal performance and durability.