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Your cart is empty.Stump Jumper / Flywheel 12 Splined Hub This hub will work in several different brands rotary cutters and can be made to fit in several more This is the hub that slides up on your output shaft that is welded to the blade carrier on your rotary cutter 3" across (76mm) 2-1/4" tall (58mm) Where the lip is that goes up into the blade carrier it is 2-7/16" (63mm) across lip height is 1/4" tall (6mm) 12 splined hub, valley to valley 1/5/8" or 42mm. The splines are tapered to fit on the tapered output shafts used by the majority of manufactures. We carry all sorts of rotary cutter parts as well as other farm equipment parts. Optional Stump Jumper Parts Available: HL418 - Blade Bolt Kit - Round Shoulder HL418N - Blade Bolt Kit - Square Sholder 75400 - 15 Splined Stump Jumper Hub 45300 - 12 Splined Hub
Mosteller
2025-09-05 12:58:40
I had about 5 Lbs. of reletively new 6011 1/8 rods and an old sears welder. After removing the old worn spline. I ground the seufaces and fitted the spline to the jumper. With a 2" round stock I held the pieces together. And started to spot weld the pieces in place. I got everything welder in place and fittet it ti the bushog. "looked food almost balanced and good fit. So I removed it again and ground the welds down to get a good second layer of weld to insure a good hold. Well I ran out od rods eo I did a 1 day order from Amazon and got 15 Lbs od rods both 1/8 and 3/32". And SUPRISE I started to weld and the rods spit and splattured but would not weld. They had been wet or at least damp. I have no electrode oven so I wait.
JW
2025-08-19 18:05:39
Worked for my bush hog.
CM
2025-07-12 12:01:58
Perfect fit. Working nicely.
Dave
2025-06-21 17:21:31
Looks like this will work as intended will leave review when used for the first time
Jennifer McKibben
2025-05-01 18:04:51
Great product
Roel Carreon
2025-03-02 15:32:03
Perfect fit for my 5' howse shredder.
allene duvall
2025-02-28 18:52:21
Fixed my problem
Customer
2025-02-06 12:25:46
bought for a friend did the job check number of spline teeth to be sure you order the right part
Happy Camper
2025-02-04 13:30:32
This weld in hub assembly fit perfectly. The part saved me from having to replace the whole mower, which would have been a significantly higher expense. I’m extremely happy with this product.
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