Cast Iron Housing RC-61 75 H price P best Ratio 1: 1.46 Pto Rotary Cutter Mower Gearbox with 1-3/8″ 6-Spline Input Shaft

Product Description

Cast iron housing RC-61 75 HP ratio 1:1.46 PTO Rotary cutter Mower Gearbox with 1-3/8″ 6-spline input shaft 

75 HP Rotary cutter gearbox with 1-3/8″ 6-spline input shaft and a gear ratio of 1:1.46. Cast iron housing is sealed to protect the gears and bearings. The mounting plate has four bolt holes spaced 5.5″ square. Ships without oil (16 oz of 80-90 W)

Gearbox has a piloted flange bottom to fit in a 5-5/8″ pilot hole in the mower/cutter deck.

Model Unit RC-30 RC-33 RC-61 RC-81
Housing material / QT450
Shafts material / 20CRMNTI
Gears material / 20CRMNTI
Seals / Triple lipped, spring loaded
Bearings / Tampered roller
Oil / EP-90-470z,
Horse CZPT hp 30hp 45hp 60-80hp 100-120hp
Net weight kgs 16.5 19.7 33.5 43
Ratio / (1).1:1. (2).1:1.93. (3). 1:1.71. (4). 1:1.46.

Replaces CZPT gearboxes on 5′, 6′ and 7′ rotary cutters by these manufacturers: Worksaver, Hawkline, CZPT , WAC, Big Bee, LMC, CZPT Kutter, Midwest, Servis, Bush Hog, some Howse and others. Please check measurements for proper fitment.

20CrMnTi/20CrMnMo for your choice

Gray cast iron HT250 according to standard GB/T 1348-2009 Ductile iron QT450-10 according to standard GB/T 1348-2009 Cast steel ZG310-570 according to standard GB/T 5613-2014

40Cr,45#,20CrMnTi,20CrMnMo for your choice according to your request.

POWER To ensure the correct use of the product we recommand to pay attention to the specifications mentioned on CZPT technical sheet.Consider also the input rotation speed,the CZPT input and the transmission ratios.Where the rotation or other working conditions are different,please contact CZPT CZPT technical department.

The reducer is usually supplied without lubricant.The recommended quantity of lubricant is indicated on CZPT catalogue and the first replaced must be done after 50-60 hours of running,then replaced after 600-800 working hours. The emptying of the gearbox should be made immediately after the working,with the oil still hot,in order to avoid the deposition of sludge.Check frequently the oil level and top up the oil whenever necessary.


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Extensive use for agricultural machines
Guarantee: CZPT precision, high wear resistance, low noise, smooth and steady, high strength

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