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S Series Geroler Motor, 7.30 cu in/rev, 2 Bolt Mounting Flange, 1 in. Straight Keyed Shaft, 7/8-14 St.Thd. O-Ring Ports, Compact yet powerful|Extended bearing life|Increased shaft seal

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Description & Features

Ideal for agricultural and industrial applications such as augers, food processing, and machine tools, the Eaton Char-Lynn S Series Geroler Motor is engineered for reliable performance. Featuring a 7.30 cubic inch per revolution displacement, this compact yet powerful motor is designed with a 2-bolt mounting flange and a 1-inch straight keyed shaft. The 7/8-14 UNF-2B SAE O-Ring ports ensure secure connections, while the enhanced shaft seal and extended bearing life increase durability under various conditions.

The motor's robust construction supports a maximum case pressure of 1500 PSI and operates efficiently with premium quality, anti-wear hydraulic fluid. To maximize the lifespan and efficiency of this motor, a recommended break-in period at 30% of the rated pressure is advised. The motor is compatible with a fluid viscosity of 70 SUS at operating temperatures, and an ISO cleanliness code level of 18/13 is suggested for optimal performance.

SKU: 103-1538

Supplier Part Number (MPN): 103-1538-012

Alternate Part Numbers: C1HC88

Specifications

Application
Agricultural augers, Food processing, Machine tools, Harvesters, Seeders
Design Code
12
Displacement
7.30
Displacement
7.3
Brand
Danfoss Power Solutions II (Char-Lynn)
Brand
Char-Lynn
Pack Size
1.00
UOM
EA
Features
Compact yet powerful|Extended bearing life|Increased shaft seal
Identification
None
Mount
2 Bolt
Mount
2 Bolt
Port Type
.875-14 UNF-2B SAE O-Ring Ports
Ports
7/8-14 St.Thd. O-Ring
Ports
7/8-14 St.Thd. O-Ring
Shaft
1 in. Straight Keyed
Shaft
1 in. Straight Keyed
Supplier Part Number
103-1538-012
Torque Rating
237 newton metre
Torque Rating
237 newton metre
Valve Options
None
Alternate Part Numbers
Alternate Part Number 103-1538-012, Alternate Part Number C1HC88
Product Weight
16.05 lbs

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Product Questions & Answers (1)

Question by: Brett H on Mar 8, 2026, 7:32 PM
motor's been running hot on our harvester rig, wondering if there's a max temp i should be keeping an eye on before things go sideways
Answer by: Customer Support on Mar 10, 2026, 6:30 AM
Keep your operating temperature at or below 180 degrees F. Past that threshold you risk seal degradation and accelerated wear on internal components. Fluid viscosity matters here too, 70 SUS at operating temperature is the target range, so if your fluid is thinning out more than that under load, that's likely contributing to the heat issue.