China Sprocket & Chain # MGUS300-JR-RH, MGUS-R300-5/8

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In Distributor of precision roller chains made from carbon steel. Available with 0.200 to 1.875 in. roller dia. Flat top, multi-flex and conveying chains are also offered.backstop applications where the Cam Clutch is used with continuous inner race and mid-speed overrunning, the MGUS Series Cam Clutch can be fitted with an oil reservoir creating the MGUS-R Series. The added capacity of the oil reservoir plus the integral cooling fins increases the time between service intervals, permitting the free flow of oil between the reservoir and the clutch. A clear sight gauge built into the reservoir allows real-time checking of the fluid level and the general condition of the lubrication oil.

Unit of Measure



Bore Size

0.625 in15.88 mm

Torque Capacity

231.6 lb·ft314.0 N·m

Max. Overrunning Inner Race

0.118 lb·ft0.16 N·m

Inner Race Overrunning [Max]

2800 rpm


Denotes right hand rotation

A (Overall Width)

4.546 in115.48 mm

B (Overall Diameter)

3.000/2.998 in76.20/76.15 mm

C (Inner Race Length)

2.500 in63.50 mm

D (Pitch Circle Diameter)

2.625 in66.67 mm

E (Cam Clutch Length)

2.380 in60.45 mm

F (Reservoir Length)

2.106 in53.50 mm

G (Chamfer)

0.060 in1.53 mm

H (Inner Race O.D.)

1.122 in28.50 mm

S (Plug Location)

0.512 in13.00 mm

H (No. of Tapped Holes)


M (Thread)


Oil Capacity

0.85 oz25 mL


2.000 kg4.409 lb

China Sprocket & Chain # MGUS300-JR-RH, MGUS-R300-5/8

China Sprocket & Chain # MGUS300-JR-RH, MGUS-R300-5/8

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The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.