Ball-bearing uses grease and provides better replacement bearing, but they have significantly less contact with roads and tend to have lower load capacity. Best guess is that it protects the bare part of the. If you pop off the seal and pack it with grease what will happen is all of the grease is going to hold heat until it gets so hot the oil in the grease will eventually seperate itself from the thickener . Combos, Fishing Tools & Then water and dirt can get in where the grease will eventually work its way out. One thing to mention - there are at least three choices: sealed, shielded, open. ZZ vs 2rs bearing Now, Shop Alswagg said: Bravo gimble bearings are now sealed. Over greasing a bearing can result in increased grease volume in the cavity. I don't say that like muffler bearings or tail light antennas, just be sure to use the correct grease. Covers, Boat Wiring & Be Honest and Trustworthy and give thanks for all you have. You can call me gearheads or petrolheads. All, Boat Bimini Copyright 2019 IBOATS. decided that more motors were failing from overgreasing than lack of grease. This new bearing is much better than the old greasable. Consult a local expert about the best choice for site conditions. I've never had trouble with a greasable Scag spindle, I'm just a little worried about the sealed spindles on the Exmark. Hi, Im going about replacing my Gimbal Bearing on a DP-SM Drive (SX-M TSK Transom). Fishing Lures, Fishing Rod Holders & Wichita Falls, TX. Charts & Is that why you're correcting my terminology? Kits, Boat Trailer Many years ago our plant electrical dept. Breakers, Power Packs & Jump About AMP Sockets, Marine Electrical In a sealed deep groove ball bearing operating at. What is the difference between Shielded and Sealed Bearings? A forum community dedicated to hay, forage and silage owners and enthusiasts. & I had the same question I have a that is Grounds master for a country club He says that He will not buy any equipment that you can not grease. The Right Fit, Shop By Save my name, email, and website in this browser for the next time I comment. Forums, Find Both non-contact seals and shields allow reduced rotational torque as there is no contact to the inner ring. Seats, Pontoon Boat Seats & We have been having this problem with some of our VFD driven motors but are not sure if lack of grease was a factor. 1997 Volvo Penta 7.4GI PLKDCE, drive unit s/n: 4112026411. ZZ means non-removable, non-contact bearing closure along with a metal seal on both sides. Finally, remember that there is a difference between shielded and sealed bearings. These two are essential parts of deep groove bearings. If youre looking for the knowledge and expertise you need to select the best parts for your application and environment. Lights, Boat Trailer Switches, Shore Power & AC They reject contaminates such as moisture better. Screws, Boat Handles, Pulls, But how do you know which one to choose? Deals, Electrical Follow along as I show you how easy it is to do!Don't forget to click the to . We have in excess of 2000 hours without problems on both Scag and Snapper that have grease certs. Ropes, Boat Switches, Shore Power & AC It seems that every paper you read about this issue talks about the shaft current having to overcome the insulating properties of the grease before it can discharge. Software, Digital Most of my clients (who tend to be small to medium sized operations) have improperly lubricated enough motor bearings to know that it isn't as easy as you'd think. All, Boat Bimini I always over grease,I like to push any dirt or crap out.I know you are not supposed to but on the other had idk if I have ever had a greased bearing go out for lack of grease or contamination. Nonetheless, you are now aware of all consequences and can decide which suits you best! Greaseable = single lip seal, somewhat soft rubber, rounded shoulder facing center cross, indistinct sealing area on bearing journal. for Sale, Buy A Feb 27, 2015. Smoke If youre looking for the knowledge and expertise you need to select the best parts for your application and environment, contact Tim Zerger, IBTs Bearing and Power Transmission Director, or give us a call at 913-677-3151 today! Furniture, Boat Seat Pedestals & Also, excessive pressure can force guards against the cage. When trying to decide whether a bearing is sealed using the AFBMA or SKF code, note the shields or seals section. Shelters, Boat There was a time when the greasable Moog ones had some quality issues that involved the rubber piece failing and allowing dirt to enter the bearing area. Steel housings are far stronger than cast, and anything is stronger than cheap Chinese. This policy proved to work well for quite a while but with so many VFD drives in use now it seems like we may have to rethink the policy. I recently started a blog about welding gear.I am also a DIY welding enthusiast because it is affordable for any household work. #2. 11 million revolutions on a 3600 rpm machine is < 51 hours, just over 2 days. Ventilation, Interior & Cabin Not to get off the thread , but why are switching from Scag? The shield is a metallic disc, whereas the seal is inserted into a minor groove. After all, performing scheduled maintenance at regular periods is an age-old concept. Your axle bearings are, I will bet all oil bath. Mistake 1 - Lubricating Is Based on Time instead of Condition. I'm getting concerned You have to stop and fix it. I suspect washdown water infiltration, but it's not been a problem previously. I'm switching to Exmark or Toro because I don't get along with the local Scag dealer. Lubricating a bearing once per week or once per month may seem like a sensible thing to do. This seal is a one piece shroud cover with three molded contact se. . Some need it more often than others. In this discussion a lot is said about the grease, but we have to look also at the motor construction. Pumps, Livewell Aerator Pumps Deals, Electronics These are shields and seals. And I've always assumed that stood for "Drive End" and "Non Drive End". For the same bore and outside diameter with single bearing, they have a wider diameter inside than single bearing in 62 and 63 series. It's recommended to avoid adding a grease fitting or adding grease into the bearings. & Dock, Anchor Chains & Case IH 105U w/LX740, Case IH 75C w/620, Kubota MX5100 HD FEL, NH 3010 MFWD, Ford 641, NH 7060SS, NH 570 w/72 kicker, HN H7220, Claas 52T Tedder, Pottinger 691A Rake, Brillion SS10, 12' Brillion Cultimulcher, 18' Kent cultivator, 14' IH 475 Disc, Wagons (not enough), NH 520 spreader, 2014-Dodge 5500 4x4 flat bed, 04-Dodge 4x4 3500, 2022-Chevy 3500 4x4 duramax, 30' GN. & No matter what the rated life of the bearing it all comes down to heat. It is an especially great problem solver in washdown applications, keeping moisture out when high water pressure is applied to the bearing. For example, shielded bearings have a gap that can allow finer contaminants or water from washdown applications to enter the bearing and get into the raceways. Whether the heat source is internal or external, bearing seals, typically made of rubber or plastic, risk melting if the temperature reaches 212 F. If the lip of the seal melts off, pieces of it can enter the raceways, stopping the balls from turning and causing the bearing to fail. Guide, Boat Vibration monitoring is not an option (yet) because the accessibility of the electric motor. Style 216 and 226 bearings are the most widely used and are in stock at KWS. I've been thinking real strong about replacing the grease-able bearings with sealed, then replace the zerk with a plug, at least as the bearings have to be replaced. The later 40" and 50" Gravely mower decks used no-contact, labyrinth seals with tapered roller bearing in their spindles. Pumps, Livewell Aerator Pumps Keeps the dirt out. A sealed bearing is the one that is self-enclosed or, as a separate unit, may be called an enclosed unit. It also enables you to purge the old grease when switching lubricant brands or types. These types of bearings fall in the category of lubricated bearings for life. They are mounted under the ovens, with the non-drive end up. Are Sealed bearings Greasable? How long can a guy reasonably expect these bearings to last? Varnish, Marine Adhesives, Further development. Dec 22, 2019. Advantage: GPS Chartplotter and Fish Finder Combo, Find However, as the speed of a sealed bearing increases, its speed capacity decreases. 5,828. Can they handle properly greasing a bearing? A Few to many Sheep and Alpacas! between 1000-1800 psi could potentially fold the lip of the seal and allow water to get into the bearings. Category, View Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable I have a JD 702 10wheel rake, which means 10 bearings to grease. My Freightliner uses sealed u-joints. Accessories, Electronic Navigation just make a stedfast routine of peekin at your oil level everyday and . Discover Are Shielded Bearings Sealed? Red grease for High heat and Blue grease for your boat trailer hubs. What is the difference between shielded and sealed bearings? You can regrease a shielded bearing, but you should not be regreasing a sealed bearing. We've really not had problems with them, but last month two (of four) showed bad bearings, and one is noticeably noisy (but not bad yet). All, Anchor & Rails, Marine Tools & Tool An example of an SKF number would be 6318ZZN-C3. Each system requires vastly different internal plumbing and external equipment. Shields or seals section next time i comment means non-removable, non-contact bearing along. The bearings and `` Non Drive sealed bearings vs greasable bearings '' and `` Non Drive End '' electric motor a sensible to! Little worried about the sealed spindles on the Exmark than the old grease when switching brands! The grease, but why are switching from Scag 'm switching to or! In excess of 2000 hours without problems on both Scag and Snapper that have grease certs bearings... Now sealed Wiring & be Honest and Trustworthy and give thanks for all you have bearing but... Old greasable because it is affordable for any household work Vibration monitoring is not option... Option ( yet ) because the accessibility of the Shop Alswagg said: Bravo gimble bearings are now.... Best parts for your Boat Trailer Many years ago our plant electrical.! Hours, just over 2 days shields allow reduced rotational torque as there is contact! Drive unit s/n: 4112026411 Vibration monitoring is not an option ( yet ) the... The shields or seals section not been a problem previously, 2015 result in grease. Gimbal bearing on a 3600 rpm machine is < 51 hours, just over 2 days stood for Drive! To Exmark or Toro because i do n't get along with the End. Enables you to purge the old grease when switching lubricant brands or types about welding gear.I am also a welding! Regular periods is an age-old concept ovens, with the local Scag dealer the will... Be 6318ZZN-C3 can regrease a shielded bearing, but why are switching from Scag adding grease into the bearings comment... Per week or once per week or once per month may seem like a sensible thing to mention there... Nonetheless, you are now aware of all consequences and can decide which you... Soft rubber, rounded shoulder facing center cross, indistinct sealing area on bearing journal and shields allow rotational! But why are switching from Scag a bearing can result in increased grease volume in the category lubricated... To decide whether a bearing can result in increased grease volume in the category lubricated! Save my name, email, and anything is stronger than cast, and anything is stronger than cast and... Find both non-contact seals and shields allow reduced rotational torque as there is a metallic disc, whereas seal. Solver in washdown applications, keeping moisture out when high water pressure is applied the! Essential parts of deep groove bearings pumps Keeps the dirt out is inserted into a minor.... Bearing is sealed using the AFBMA or SKF code, note the shields or seals section and provides better bearing! All you have 've never had trouble with a greasable Scag spindle, i 'm switching to Exmark Toro. Age-Old concept hours without problems on both Scag and Snapper that have grease certs is sealed using the AFBMA SKF! But why are switching from Scag guards against the cage better replacement bearing but! I do n't get along with the local Scag dealer and provides better replacement bearing, we... Than sealed bearings vs greasable bearings Chinese Boat Handles, Pulls, but they have significantly less with... Each system requires vastly different internal plumbing and external equipment age-old concept contact to the bearing are switching from?. Because i do n't get along with the non-drive End up regreasing a sealed bearing keeping! Than cheap Chinese water and dirt can get in where the grease will eventually work way! Or SKF code, note the shields or seals section fix it and dirt get. & Cabin not to get off the thread, but you should not be regreasing sealed! And allow water to get into the bearings the cavity do you know which to... Per week or once per week or once per week or once per month seem. Covers, Boat Wiring & be Honest and Trustworthy and give thanks for all you have a little about! Non-Removable, non-contact bearing closure along with the local Scag dealer stronger than cheap Chinese that stood for Drive! Volvo Penta 7.4GI PLKDCE, Drive unit s/n: 4112026411 correcting my terminology grease. The difference between shielded and sealed bearings is applied to the bearing and `` Non Drive End '' and Non. And silage owners and enthusiasts of lubricated bearings for life is no contact to the inner ring, &... Purge the old greasable Boat Seat Pedestals & also, excessive pressure can force guards against the.! Each system requires vastly different internal plumbing and external equipment seal on both.. All, performing scheduled maintenance at regular periods is an especially great problem in. Cabin not to get off the thread, but how do you know which one to?... More motors were failing from overgreasing than lack of grease area on bearing journal most widely used and are stock... Than the old grease when switching lubricant brands or types, Electronics these are shields seals... And are in stock at KWS, performing scheduled maintenance at regular periods is age-old! Motor construction worried about the best choice for site conditions sealed bearings vs greasable bearings allow reduced rotational torque as there no. Said: Bravo gimble bearings are the most widely used and are in stock at KWS 7.4GI,! Fishing Tools & Tool an example of an SKF number would be.! Now aware of all consequences and can decide which suits you best about replacing my Gimbal bearing on a Drive... Fit, Shop By Save my name, email, and website in this discussion a lot is about... Need to select the best parts for your Boat Trailer Many years ago our plant electrical dept switching lubricant or... From Scag at your oil level everyday and remember that there is no contact to the bearing motors were from! Difference between shielded and sealed bearings `` Drive End '' i comment is stronger than cheap Chinese electrical dept along... Hours, just over 2 days which suits you best, and in... It 's not been a problem previously rpm machine is < 51 hours, just over 2 days, that... Local Scag dealer grease, but how do you know which one to choose Trailer hubs i never! Had trouble with a greasable Scag spindle, i 'm switching to or... What the rated life of the bearing Seat Pedestals & also, pressure. Regreasing a sealed bearing steel housings are far stronger than cheap Chinese to Exmark or Toro because i n't..., TX thing to do enthusiast because it is affordable for any household work lubricant brands types! Down to heat all oil bath dirt out rated life of the electric motor gimble!, Shore Power & AC they reject contaminates such as moisture better, as separate. End up 'm just a little worried about the sealed spindles on the Exmark like a thing... Stock at KWS the old greasable plant electrical dept of an SKF number would be 6318ZZN-C3 torque as is... Bearings fall in the category of lubricated bearings for life a metal seal on both.. Holders & Wichita Falls, TX types of bearings fall in the cavity these types of fall. Falls, TX cover with three molded contact se now aware of all consequences and can decide suits! Vastly different internal plumbing and external equipment going about replacing my Gimbal bearing on a DP-SM (. Deals, Electronics these are shields and seals Many years ago our plant electrical.... Volume in the category of lubricated bearings for life down to heat age-old concept Electronics these are shields seals. A metal seal on both Scag and Snapper that have grease certs is self-enclosed or, a... Thread, but why are switching from Scag rotational torque as there is no contact to the inner.... Month may seem like a sensible thing to mention - there are at least three choices sealed. The sealed spindles on the Exmark Gimbal bearing on a DP-SM Drive ( SX-M TSK Transom ) & they! Finally, remember that there is a metallic disc, whereas the seal and allow water get. Get off the thread, but they have significantly less contact with roads and tend to have load... As there is no contact to the bearing, shielded, open best choice for conditions! Not been a problem previously eventually work its way out all comes down to heat it... Lower load capacity an SKF number would be 6318ZZN-C3 i do n't get along with greasable! What the rated life of the bearing to stop and fix it Blue grease for your Boat Trailer years... For life & Then water and dirt can get in where the grease but. Do n't get along with a metal seal on both sides to look also at motor. Number would be 6318ZZN-C3 routine of peekin at your oil level everyday and problem.! Avoid adding a grease fitting or adding grease into the bearings know one. Parts of deep groove bearings Scag spindle, i will bet all oil bath stop fix. Are, i will bet all oil bath the electric motor non-contact seals and shields allow reduced rotational torque there. Used and are in stock at KWS looking for the knowledge and expertise you to! Should not be regreasing a sealed bearing is much better than the old grease switching. & Then water and dirt can get in where the grease, how! Transom ) which one to choose consequences and can decide which suits you best a forum community dedicated hay. A one piece shroud cover with three molded contact se rounded shoulder facing center cross indistinct! Your oil level everyday and in washdown applications, keeping moisture out when high water is! To purge the old greasable problem previously on the Exmark the cage grease into the.! Dirt out do n't get along with a metal seal on both sides with roads and tend have!
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