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Model Boats Website
Propshafts
7 Posts · 4 Followers · 2 Photos · 8 Likes
Began 2 months ago by
Petty Officer 1st Class
United KingdomFollow This Thread
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Latest Post 29 days ago by
Warrant Officer
United States( Newest Posts Shown First )
📝 Propshafts
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Country: 🇺🇸 United States
Online: 2 hours ago
Online: 2 hours ago
I use marine suitable grease. In particular it is CRC Sta-Lube water resistant marine grease the type used to lube boat trailer bearings Len
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LEN1
Chief Petty Officer 2nd Class📝 Propshafts
35 Views · 1 Like
Country: 🇨🇦 Canada
Online: 1 hour ago
Online: 1 hour ago
The silicone will contain acetic acid (unless you use the very expensive stuff intended for microwave circuits) so i say keep it away from the bearings. As long as you grease the shaft...white lithoum grease...well. & the motor end is above the waterline, then you dont need to seal it as you will get very little water getting thru the shaft tube into the hull.
I have bedded a shaft tube in silicone where it comes up thru the keel into the hull, however i made sure there were no electronics in the hull until the RTV silicone had cured...no servo, no ESC, no lighting switch, NO RECEIVER.
I have bedded a shaft tube in silicone where it comes up thru the keel into the hull, however i made sure there were no electronics in the hull until the RTV silicone had cured...no servo, no ESC, no lighting switch, NO RECEIVER.
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Colin H
📝 Propshafts
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Country: 🇺🇸 United States
Online: 2 hours ago
Online: 2 hours ago
Had a chance to add 2 photos.
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LEN1
📝 Propshafts
69 Views · 2 Likes
Country: 🇺🇸 United States
Online: 2 hours ago
Online: 2 hours ago
I use the same approach as Lew. I have installed a pillow block between the motor and the propeller shaft and added thrust washers at each side of the block where the shafts enter and exit. The thrust washers take up the force from the propeller shaft in either direction of rotation and eliminates some of the strain on the end of the motor. I am in the process of putting together some build pictures but they will not be ready any time soon, Sorry too many projects, not enough time.
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Colin H
LewZ
LEN1
📝 Propshafts
83 Views · 1 Like
Country: 🇬🇧 United Kingdom
Online: 11 minutes ago
Online: 11 minutes ago
I just made up the prop shaft, and wanted to support the prop shaft inside the prop tube with bearings, just was checking water ingress thru the tube. Boat is going to be a1200mm Fairey Huntsman
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Colin H
Midshipman📝 Propshafts
87 Views · 4 Likes
Country: 🇺🇸 United States
Online: 22 minutes ago
Online: 22 minutes ago
Roller bearings? How big is this boat? Is it for high speed?
I've never used any bearings on any of my boats. All my shafts are scratch built using a brass tube with a smaller/short section of tubing inside each end to for bushings. Inside that is the prop shaft which is either solid stainless or brass rod. Near the motor end of the tube there is a "T" connection (short perpendicular tube) for filling the grease inside this assembly (called a "stuffing box"). Never had a problem and the shafts turn smoothly.
Here is someone's video that shows the process:
I've never used any bearings on any of my boats. All my shafts are scratch built using a brass tube with a smaller/short section of tubing inside each end to for bushings. Inside that is the prop shaft which is either solid stainless or brass rod. Near the motor end of the tube there is a "T" connection (short perpendicular tube) for filling the grease inside this assembly (called a "stuffing box"). Never had a problem and the shafts turn smoothly.
Here is someone's video that shows the process:
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Colin H
scout13
Ray
NickD
Lew Zee (LewsModelBoats)
📝 Propshafts
84 Views
Country: 🇬🇧 United Kingdom
Online: 11 minutes ago
Online: 11 minutes ago
Hi Guys.
I'm going to be installing the prop shaft soon.
Inputting said shaft inside a brass tube with a roller bearing at each end, do I need a Polyurethane cap on each end or can can I just seal round each end with Silicone?
I'm going to be installing the prop shaft soon.
Inputting said shaft inside a brass tube with a roller bearing at each end, do I need a Polyurethane cap on each end or can can I just seal round each end with Silicone?
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