FOR MODELS: JGW, JGR AND JGJ SECTION 1 - DESIGN SPECIFICATIONS & DATA
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TABLE 1-2: JGJ FRAME SPECIFICATIONS
MODEL JGJ/2 JGJ/4 JGJ/6
Stroke, inches (mm) 3-1/2 (88.9) 3-1/2 (88.9) 3-1/2 (88.9)
Speed, RPM 900 to 1800 900 to 1800 900 to 1800
Piston Speed, FPM (m/s) To 1050 (5.33) To 1050 (5.33) To 1050 (5.33)
Number of Throws 2 4 6
Horsepower (kW) To 620 (460) To 1240 (920) To 1860 (1380)
Height - Bottom to Crankshaft Centerline, in.
(mm)
12 (305) 12 (305) 12 (305)
Connecting Rod Centerline To Centerline,
in. (mm)
10.250 (260.35) 10.250 (260.35) 10.250 (260.35)
Maximum Width, in. (m) 103 (2.62) 103 (2.62) 103 (2.62)
Maximum Length, in. (m) 41 (1.04) 77 (1.96) 113 (2.87)
Approximate Weight with Cylinders, lb. (kg) 4200 (1905) 8200 (3720) 12,000 (5445)
Oil Pump Capacity, GPM (L/s) 8 (0.50) 14 (0.88) 20 (1.26)
Oil Heat Rejection, BTU/hr. (J/s) 10,000 (2940) 16,000 (4700) 21,000 (6170)
Sump Capacity, US gallons (L) 6 (23) 15 (57) 24 (91)
Piston Rod Diameter, in. (mm) 1.500 (38.10) 1.500 (38.10) 1.500 (38.10)
Internal Rod Load - Double Acting:
Compression + Tension, lbf. (kN) 42,000 (187) 42,000 (187) 42,000 (187)
Tension, lbf. (kN) 21,000 (93) 21,000 (93) 21,000 (93)
Compression, lbf. (kN) 23,000 (102) 23,000 (102) 23,000 (102)
Internal Rod Load - Single Acting:
Tension, lbf. (kN) 21,000 (93) 21,000 (93) 21,000 (93)
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