RC61 Mower Gearboxes

RC61 Rotary Mowers gear box Flail Mowers Gear Box lawn mower gearbox



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)

RC 61 Rotary Cutter Gearbox 1

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

rc61 mower gearbox 2