Specifications:
The document describes two fixed displacement motors with capacities of 48 in³ and 55.5 in³. It also mentions 4-port double motors ranging from 96 in³ to 111 in³, allowing for two-speed operation with external valving. The motors provide starting and stall torques equal to 90-94% of theoretical torque and can operate continuously at speeds up to 500 RPM and power up to 190 HP. The motors feature a modified SAE 'D' mounting specification and weigh 123 lbs.

Features of the 57 Series Standard Motor:
The motor operates at 3000 PSI (Code 61) and includes a vane crossing vane design for higher volumetric and mechanical efficiencies. The design improvements result in reduced cross port leakage and increased efficiency. The motor is capable of rotating in either direction and requires an external case drain with a recommended case pressure of less than 35 PSI.

Performance Data:
Performance data is provided for both 48-CID and 55.5-CID motors, showing flow and torque at various pressures and RPMs. The document includes charts for radial and thrust load capacities, indicating the motor's ability to handle different loads at specified RPMs.

Mounting and Seals:
The 57 Series motor uses a modified SAE 'D' 4-bolt mounting configuration with a larger 2-1/4" keyed or splined shaft. Viton shaft seals and Buna N static seals are standard, with Viton static seals available as an option.

Fluid and Filtration:
The document recommends using premium grade fluids with specific viscosity and temperature parameters to ensure optimal performance and longevity. Filtration should be at a minimum of 25 microns.

Warranty:
Rineer Hydraulics, Inc. offers a limited warranty covering defects in material and workmanship for 455 days from shipment or one year from first use. The warranty excludes consequential damages and is void if the product is dismantled or used beyond its designed capabilities.