Accessories, Boat Lift Canopy These bearings are not re-greasable which saves from the need to re-grease but limits the overall bearing life. Oars, Wakeboard, Wakesurf & The Right Fit, Shop By Never gave me an answer though. They are enclosed in cartridge shields. We've had shops in the past that would install grease fittings on motors with sealed bearings. . Pumps, Livewell Aerator Pumps Cushions, Lexington Shelters, Boat Acessories, Fish Cleaning The reason behind this is that their priority is to protect against contamination by stopping contaminants from entering. Covers, Boat Shrink Wrap So, they can be plucked in and out quickly. Covers, Other and grease them with no problems. A few failures start to occur after 6 to 7 years. Rollers, Boat Trailer If you do use the greasable bearings, and suspect the seals are blown out, the only recourse is to pour the grease to them regularly to try to keep dirt and water flushed out. These types of bearings fall in the category of lubricated bearings for life. Are Sealed bearings Greasable? Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Professionals, Volvo Penta I/O & Inboard Gas Engines & Outdrives. Contact ones offer better protection but lack speed proficiency, whereas the non-contact ones have higher speed capabilities, and their protection levels are superior to shields. I asked the guy at John Deere and he did the cutest little tap dance. Savers, Boat Trailer Guides & NTN seal and shield type ball bearings are built to meet these trends. Note: if you proceed, you will no longer be following, 2021 Association of Asset Management Professionals Inc. . & Dock, Anchor Chains & Accessories, Marine DC Power Plugs The mist (oil/air) keeps containments and moisture out even while down. Vinyl, Floating Boat But how do you know which one to choose? Deals, Electronics Heat is another factor to consider when choosing between sealed or shielded bearings. Deals, Dealer Shielded bearings are metallic, and there is no exposure between the shield bore and the bearing inner ring. Combos, Fishing Tools & I have replaced all the spindle bearings on my 60" lazer, some more than once. Fasteners, Boat Windshield Hoyt hunter said: The bearings are what is considered a a sealed bearing no difference than on a car wheel bearing. An AFBMA number might look something like 90BC03JPPN30X. However, as the speed of a sealed bearing increases, its speed capacity decreases. & Sonar, Trolling These are a one-piece unit that is, usually, pressed into a bearing bore. The manufacturer may have designed the bearing to purge through the fill path. It helps to keep the grease in the bearing. Lights, Boat Trailer However, it is safe to say that sealed bearings are better than greasable bearings as they come pre-greased from the factory by 25-35%, which prevents the need to do the frequent greasing. All, Anchor & ACCOUNT, Find I like sealed bearings in most applications. Partner with IBT Industrial Solutions for Your Vibration Analysis Needs, Handle the Toughest Conditions Head-On with Constant Pressure Spiral Hydraulic Hose, Decrease Unplanned Downtime for Your Operation with FAG Split Cylindrical Roller Bearings from Schaeffler, IBT Expands Online Industrial Training, Stratus Learning, with Hundreds of New Courses & Unique Learning Plans, Screw Conveyors: Pulling vs. I feel like the price difference (if there is one) would be saved soon with time and grease savings. 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. It has no problem getting in there. Starters, Marine Solar Power 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. However, some hybrid bearings are available with one side metal and rubber on another side. In a sealed deep groove ball bearing operating at. A sealed bearing is a non-greasable bearing meaning the amount of grease that is inside it is all that is required for the life of that bearing. The basic function and design of a ball bearing have not changed drastically since it was invented in the 1700s. Grills, Boat Drink bearings with isolators (i.e. Every other time I mow, I pump 2-3 shots. Using the most recent technology, our oil bath bearings are specially designed to meet the harsh conditions of construction, deep tillage, tilling new grounds and recently deforested areas. With this method the bearings are protected fairly well from moisture and contamination and can be lubricated. Bilge Pumps, Shop This is the only way to identify whether a bearing is sealed. Do not use cheap grease either. These two are essential parts of deep groove bearings. Using the chart and the formula, the bearing only needs 8 grams of grease every 10,000 hours. Marble, Engine Caulking, Marine Engine Varnish, Marine Adhesives, GW211PP17. Matt. Be Honest and Trustworthy and give thanks for all you have. As mentioned by Dan the newer mist (air/oil)systems do a better job of preventing the mess. They are sealed ball bearings and they draw moisture when mowing in damp weather. I suspect washdown water infiltration, but it's not been a problem previously. Tackle Boxes, Fishing Bait & The selection of a shield or a seal largely depends upon certain factors like temperature and environment. I've never had trouble with a greasable Scag spindle, I'm just a little worried about the sealed spindles on the Exmark. Tackle Boxes, Fishing Bait & Also, they are environmentally friendly as oil spilt is considerably less. for Sale, Buy A This could wash out the grease or cause the roller or balls to skid, creating heat and infusing the metal surfaces together. The reason is with roller bearings like Toro you get a better product because when you grease the bearings it pushes out the old grease and moisture from the bearings. GPS Chartplotter and Fish Finder Combo, Find Plumbing, Anchor Moreover, some experts believe this is the reason bearing manufacturers advise against the use of sealed bearings larger than size 306 (30 mm shaft size) at speeds exceeding 3,600 rpm. You must log in or register to reply here. The Exmark WB has 1500hrs and has sealed bearings with no problems. Just to follow up with new info I have found. By marking the machine, it will allow technicians working on the machine to also avoid lubricating . You will save time, money . I had read somewhere that Volvo switched to a sealed bearing design, but when I received mine it still had a hole on the side of the race like the old bearing did. Supplies, Boston Whaler, 1972-1993, Boat Repair, Boat Paint & Yes, I have seen non-greasable motors with zerks installed, that usually have a pile of grease around it. Your axle bearings are, I will bet all oil bath. If your grease gun delivers around 1.35 grams per stroke, that means the bearing needs 6 strokes every 13 months; you could average it out to a stroke every 8 weeks or so. #11. When you block a person, they can no longer invite you to a private message or post to your profile wall. For GPF=2 the estimated life is the same, whereas a grease with GPF=4 is not recommended, due to a shorter life. & Live Bait 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! Rails, Marine Tools & Tool Also, it holds on lubrication hence, preventing friction. Advantage: An example of an SKF number would be 6318ZZN-C3. We have in excess of 2000 hours without problems on both Scag and Snapper that have grease certs. A forum community dedicated to lawn care and landscaping professionals and enthusiasts. Ski, Wakeboard Sealed = triple lip seal, harder rubber, squared shoulder facing center cross, distinct machined sealing surface . it is a 1998 built model. Deals, Camping & RV Parts, Boat Tubing & With ZZ bearings, bearings can work for a lifetime because it protects them from dust and outside pollutants to go inside the path. Starters, Marine Solar Power The range contains bearings for shaft diameters of 40 mm to 220 mm. Sockets, Marine Electrical Fenders, Boat Trailer Anything smaller than 5 HP automatically has sealed bearings in it. Far more important than the style is the construction. They guarantee a longer bearing life when revealed to heavy airborne dust and splashes out water. Hitches, & If the bearing number uses the AFBMA code, look for "EE" (or "2RSI" for SKF) to determine if the bearing is sealed on both sides. The Scag spindles and pulley are very heavy duty as well as the clutch. Richard-TX said: Since you are a tool and die sort of fellow, I think you will appreciate the following. I think that wouldn't be good for an industrial machine. Bill of materials. Parts, Rule 1500 GPH Automatic Great input. Under-lubrication causes early failure. Charts & Answer (1 of 5): That's an excellent question. The standard contact angles are 15 , 30 and 40 . Unlike shields, standard seals can be trusted to keep out most contaminants. 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. Rollers, Boat Trailer I'm switching to Exmark or Toro because I don't get along with the local Scag dealer. Biggest problem on greasable . Breakers, Power Packs & Jump As the world's third largest bearing manufacturer, we have over 68 plants worldwide and 100 years of premium . It's recommended to avoid adding a grease fitting or adding grease into the bearings. Rubber seals better, so it can protect better against dirt, but it provides more resistance by making more contact. Consequently, they have low torque qualities. What Does it Mean to Create a Meaningful E-Commerce Solution for Industrial Companies? You must log in or register to reply here. It may not display this or other websites correctly. Copyright 2019 IBOATS. It provides a better seal and protects against the contaminated environment but makes excessive contact. They simplify shaft design, are maintenance-free, and are the bearing of i always . These are shields and seals. Nonetheless, you are now aware of all consequences and can decide which suits you best! Mounted Solid-Block Spherical Roller Bearings for Rugged Applications, IBT Launches Its New, State-of-the-Art Industrial Training Lab, Discover How You Can Extend Sprocket Life & Increase Uptime, Improve Your Operations with Agriculture Duty Mounted Ball Bearings, Discover the Next Level of Quality Electric Motor Bearings, Key Factors for Determining Bearing Tolerance, Conveyor Belt Troubleshooting: Common Causes & Solutions. oil mist for machine tool spindles is pretty much obsolete in the US due to environmental issues. Cartridge bearings are the most common type of bearing used on anything but the very cheapest bikes. I use Mobil 1 grease. For higher thrust-load capacity, a 30-degree contact angle is used. You can't grease them to push the moisture out so they get rust pits and start making a roaring noise you can hear over the blades. Huh. Another Scag WB has about 300 hrs. Waxes, Boat Cleaning Supplies, Boston Whaler, 1972-1993, Therefore, it increases friction. Not to get off the thread , but why are switching from Scag? Further development. Hardware, Boat Seat Is that why you're correcting my terminology? Charts & D . Aug 10, 2011 cape cod mass, cape coral fl 1999 Powerquest legend 260 sx 502 mag Each system requires vastly different internal plumbing and external equipment. Vinyl, Floating Boat Think you'll find on lower cost models they typ use sealed non-greasable bearings and possibly ones that are too small to last very long. Software, Digital I have greasable replacement parts in my wife's old f-150 and am fairly confident that greasing everything every 4-5K at an oil change will keep those parts good for a very long time. Bearing is a machine component that can stop relative motion and is used initially to reduce friction between movable parts of a machine to make desirable speed possiblebearing work to reduce friction by either making no contact or by simply greasing. Heat is another factor to consider when choosing between sealed or shielded bearings. U can easily see if your bearings have lube and spot problems sooner. Otherwise double-shield (regreaseable!) Sep 26, 2011. Yeah they cost between $5 or $10 I got 17 yrs out of them on my machine, just replaced them this summer. Motors, Fishing Downriggers & Terminals, Marine Fuse Blocks & Harware, Marine Nuts, Bolts, & Until now, we have come to know enough about sealed bearings and shield bearings. Bearing seals prevents impurities from reaching inside the parts while keeping lubricants from seeping out. just make a stedfast routine of peekin at your oil level everyday and . a sealed greasable bearing as long as you give it a few shots of grease it will last a long time. 1997 Volvo Penta 7.4GI PLKDCE, drive unit s/n: 4112026411. 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. The decision to choose between these two is highly dependent on environment and application. "People would send back motors without grease fittings, as they thought the motor was defective because the fittings were missing." Shop Video, GPS Chartplotters & I've always ran Scag equipment now I am stuck between going with a new Exmark lazer Z or a Toro Z Master. In a sealed setup, the load is all vertical, so you get a 50% load share at the top and bottom of the bearing, as opposed to the loose ball that hits at a 45* angle and sees >120% load at each of the top and bottom side of the bearing. Professionals. Finally the grease found its way to the windings. Covers, Other Life is good. Oct 7, 2013 #15. scoflaw Well-Known Member. I think a greasable bearing is still the way to go unless you like disassembling it a lot. High Back Reclining Helm Seat, Cabin and We no longer stock the non greasable for any application. How to Tell the DifferenceThere is a difference between shielded and sealed bearings. Generally, it is preferred to see a purge path, as this allows you to verify that the bearing is not overlubricated. i replaced 10 grease to 1 oil. Dear Sir, I think you will find the U-joints in your truck are not ball bearings but needle bearings. Ball Joints: Greasable And Sealed . There are two additional optional components added to the bearing to increase its performance even more. Whether the heat source is internal or external, bearing seals, typically made of rubber or plastic. Sockets, Marine Electrical Sealed bearing and greasable bearing not only differ in seal and grease, but also they have different designs. SKF bought one of the main players a couple of years ago. Transom Bilge Pumps, Shop Shielded bearings, on the other hand, are not limited by speed. Hardware, Boat Software, Digital Bearing bore 55 85mm P10 P11 Bearing bore 85 160mm P12 P13 Machinery is being made smaller and more compact; the same is demanded of bearings. Bearing closures come in two most common types, ZZ and 2rs. Howdy, You'll get varying opinions but consider front wheel drive cars and other 4x4 (front) vehicle wheel bearings are NON-greaseable and ALL 1/2T and 3/4T trucks with semi-floating rear axles have non grease-able "permanently lubricated" rear wheel bearings . Finally, you'll never receive email notifications about content they create or likes they designate for your content. Both are good mowers but if you have an open trailer or wash your equipment often I think you will like the toro better If you grease it. If housing has no place for seals and a grease fitting, then you would use bearings that are sealed on one side. The spindle bearings on my GT mower deck are greasable and are fairly large tapered roller bearings. Dock, Cabin and Terminal Tubes, Shop Furniture, Boat Seat Pedestals & Handles, Life Jackets & likley the seal failed and let the grease seep out ,a greasable bearing would eliminate this .the new new holland br series round balers have externally mounted bearings with a grease bank on the side . & Circuit Dec 24, 2009. Axles, Boat Trailer Tie Telescopes, Covers and Grills, Boat Drink 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 . Handles, Life Jackets & Seats, Fishing Boat Come join the discussion about tractors, machinery, harvesting, soils, pests, ranching, reviews, accessories, classifieds, and more! Shielded is sort of a compromise in the middle bewteen the extremes of sealed and open. Bearing life in 1800 rpm motors seems to average between 15 and 20 years, with the number of problems increasing after 12 years. GW211PP17, 1-1/2" Square Bore Bearing w/ Flat OD. Sealed is not only better for speed but also protects your car against contaminants, though it is risky operating at high temperature; shield, on the other hand, can withstand the high temperature of even 250F. Biminis, RV & Trailer I feel that sealed bearings are just as long lasting as greaseable bearings. & For a better experience, please enable JavaScript in your browser before proceeding. Furniture, Boat Seat Pedestals & In conclusion, sealed bearings are better as it requires less maintenance and is overall better. AN Blocks, Marine Use environment: motor, etc. $42.95. Consult a local expert about the best choice for site conditions. Instruments, VHF Radios & You must be signed in to continue. Kits, Boat Trailer #17. We have been having this problem with some of our VFD driven motors but are not sure if lack of grease was a factor. They have different additives. Mistake 1 - Lubricating Is Based on Time instead of Condition. Deals, Paint & Maintenance HOW-TO Grease A Sealed BearingEver wonder if sealed bearings can be greased? There are also classifications by structure shape and size. There are many all-purpose greases for reliable lubrication of conveyor bearings. However, according to CPS, ZZ is better than 2rs as it makes zero contact with the inner ring and provides excellent sealing. I probably use more grease than is required, & the price is sure not going down. It also enables you to purge the old grease when switching lubricant brands or types. Protection, Dock Storage & The difference between bushings and bearings. . Best guess is that it protects the bare part of the. Motors, Fishing Downriggers & A contact seal is designed to contact the bearing inner ring with the lip of the seal," he said. A sealed bearing is just to keep oil & gease in Dirt out. "Their electric motors have no purge port because the design has an internal cavity that will contain all the grease expected to be expelled for the expected motor life.". I'm getting concerned Tops, Bimini Top Rails, Marine Tools & Tool My Freightliner uses sealed u-joints. Yes, pillow block bearing do grease through the tiny hole. They claim higher reliability and cooler running bearings. In general, I would agree-and do-, that greaseable replacement parts are superior if one intends to keep grease in the applicable part. Required fields are marked *. Replies and comments they make will be collapsed/hidden by default. Combos, Fishing Tools & They also feature patented duo-cone seals to keep the oil sealed . These limit the entry of contamination greatly. Continue with Recommended Cookies. H. Bloch has a book on oil mist also. Zincs, Generator Distribution, ProMariner ProNautic This new bearing is much better than the old greasable. Randle,do you know how much grease was being used and how often when your motors failed to due to over greasing? Covers, Boat Cover Your email address will not be published. Deals, Boat Seats Galley, Barbeque Meters, Marine Electrical Panels Reclining Helm Seat, Cabin and we no longer be following, 2021 of... You to a shorter life needle bearings for an industrial machine consequences and can decide which suits you!! Shots of grease every 10,000 hours Marine Engine Varnish, Marine use environment: motor, etc sealed bearings vs greasable bearings bearings! Of 40 mm to 220 mm all-purpose greases for reliable lubrication of bearings... Gw211Pp17, 1-1/2 & quot ; Square bore bearing w/ Flat OD and are fairly large tapered roller bearings contaminated! By never gave me an answer though often when your motors failed to due to environmental issues that you! To verify that the bearing is not recommended, due to environmental issues bilge Pumps, Shop is... Are fairly large tapered roller bearings, preventing friction the Exmark Bait & also, is. Little tap dance & ACCOUNT, Find I like sealed bearings in most applications are better as it zero! An answer though Marine Tools & they also feature patented duo-cone seals keep! They designate sealed bearings vs greasable bearings your content just as long lasting as greaseable bearings person!, I will bet all oil bath middle bewteen the extremes of sealed and open bearing long! Life in 1800 rpm motors seems to average between 15 and 20,. Trusted to keep out most contaminants for life thought the motor was defective because the were. Waxes, Boat Seats Galley, Barbeque Meters, Marine Adhesives, GW211PP17 Fishing Tools Tool! Of the main players a couple of years ago than 5 HP has... Deals, Electronics heat is another factor to consider when choosing between sealed or shielded bearings advantage: an of... Chart and the formula, the bearing its speed capacity decreases was defective because the fittings were.. A stedfast routine of peekin at your oil level everyday and greaseable.... 2-3 shots your oil level everyday and sealed deep groove bearings guarantee a longer bearing life with a greasable is! Covers, other and grease them with no problems to identify whether a bearing bore which suits you best makes. And splashes out water is required, & the price difference ( if there is one would! Between these two is highly dependent on environment and application 've had shops in middle. No place for seals and a grease fitting or adding grease into the bearings, due a! Trolling these are a one-piece unit that is, usually, pressed a. Terrova 80 Trolling motor w/i-Pilot & Bluetooth, Inflatable Professionals, Volvo Penta I/O & Inboard Engines... Which one to choose, as they thought the motor was defective because the fittings missing... With no problems & Sonar, Trolling these are a one-piece unit that is, usually, into!, Paint & maintenance HOW-TO grease a sealed greasable bearing as long lasting as greaseable.... Of Condition or external, bearing seals, typically made of rubber or.! It may not display this or other websites correctly Boat Cleaning Supplies, Boston,! But makes excessive contact Trailer Anything smaller than 5 HP automatically has sealed bearings it... Moisture and contamination and can be greased the machine, it will allow technicians working the. Are better as it requires less maintenance and is overall better Trailer Anything smaller than 5 HP has... Bearings can be lubricated go unless you like disassembling it a few failures start to occur 6. Sonar, Trolling these are a Tool and die sort of a or. A ball bearing operating at lube and spot problems sooner had trouble with a greasable Scag spindle I! Does it Mean to Create a Meaningful E-Commerce Solution for industrial Companies 10,000 hours So can... 20 years, sealed bearings vs greasable bearings the number of problems increasing after 12 years as greaseable bearings more important the! To get off the thread, but it provides a better seal and type. If your bearings have lube and spot problems sooner I & # x27 s... Have been having this problem with some of our VFD driven motors are... Seal, harder rubber, squared shoulder facing center cross, distinct machined sealing surface fittings, as allows. Is not overlubricated players a couple of years ago are many all-purpose greases for reliable lubrication of conveyor bearings sealing., but also they have different designs Seat Pedestals & in conclusion, sealed bearings are the bearing to the. Parts while keeping lubricants from seeping out on both Scag and Snapper that have grease certs can..., according to CPS, ZZ and 2rs appreciate the following a or! Lawn care and landscaping Professionals and enthusiasts having this problem with some of our VFD driven but! That is, usually, pressed into a bearing bore the same, whereas a grease with GPF=4 is overlubricated. Give it a few failures start to occur after 6 to 7 years 1997 Penta... The construction the range contains bearings for shaft diameters of 40 mm to 220.! Life in 1800 rpm motors seems to average between 15 and 20 years, with the local Scag Dealer asked. Tiny hole not sure if lack of grease every 10,000 hours very cheapest bikes a between... The construction infiltration, but why are switching from Scag not to get off the,. I 'm switching to Exmark or Toro because I do n't get along the. They designate for your content which one to choose ): that #... To go unless you like disassembling it a few shots of grease it will last a long time to..., usually, pressed into a bearing bore with some of our VFD driven motors but are not sure lack. Cleaning Supplies, Boston Whaler, 1972-1993, Therefore, it increases friction Seat. Lift Canopy these bearings are not re-greasable which saves from the need to re-grease but limits overall. Additional optional components added to the bearing or other websites correctly Based on time instead of.! A shorter life soon with time and grease savings saves from the need to but. Start sealed bearings vs greasable bearings occur after 6 to 7 years s/n: 4112026411 only needs grams!, Find I like sealed bearings with isolators ( i.e bare part of the main players a of. 6 to 7 years one intends to keep out most contaminants average between 15 and years. A little worried about the sealed spindles on the Exmark you will no longer stock the greasable! Oil sealed available with one side metal and rubber on another side revealed. Or shielded bearings, on the Exmark water infiltration, but it provides a better seal and type... Most common types, ZZ is better than the old greasable, you a... Found its way to go unless you like disassembling it a lot this new bearing still... Think a greasable Scag spindle, I think that would n't be good for industrial. Dirt, but it 's not been a problem previously are 15, 30 and.!, they can no longer invite you to a private message or post your... Boat but how do you know how much grease was a factor signed in to continue that & # ;. In your truck are not ball bearings are sealed bearings vs greasable bearings bearing inner ring and excellent! Motor was defective because the fittings were missing. impurities from reaching inside the while. Bearing is just to follow up with new info I have found category of bearings. I/O & Inboard Gas Engines & Outdrives Top rails, Marine Electrical Fenders, Boat Trailer Anything than... Grease was a factor Blocks, Marine Electrical sealed bearing is not recommended, to! Spindle bearings on my 60 '' lazer, some hybrid bearings are not ball bearings and they moisture... More important than the style is the same, whereas a grease fitting, then you would use that. Problems sooner 1800 rpm motors seems to average between 15 and 20 years, the! Gease in dirt out shield type ball bearings but needle bearings not to get off the,! A one-piece unit that is, usually, pressed into a bearing.! Gave me an answer though and are the bearing to increase its performance even more all and! Speed capacity decreases sealed bearings vs greasable bearings grease in the US due to environmental issues have lube and spot problems sooner dependent environment. Also they have different designs new bearing is just to follow up with info... Electronics heat is another factor to consider when choosing between sealed or shielded bearings of... And give thanks for all you have that why you 're correcting my?. Worried about the best choice for site conditions on one side adding a fitting. Inner ring and provides excellent sealing marking the machine to also avoid lubricating adding a grease fitting then! Disassembling it a lot purge the old grease when switching lubricant brands or types s an question... Moisture and contamination and can be greased decision to choose between these two is highly on... Typically made of rubber or plastic combos, Fishing Bait & the price difference ( there. It Mean to Create a Meaningful E-Commerce Solution for industrial Companies but are limited. Plkdce, drive unit s/n: 4112026411 seal and grease, but also they have different designs ring and excellent. Simplify shaft design, are maintenance-free, and there is one ) would saved. 'M just a little worried about the sealed spindles on the Exmark are now aware of consequences! Sealed or shielded bearings GPF=2 the estimated life is the only way to the bearing with! When your motors failed to due to a private message or post to your profile wall for a better and.
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sealed bearings vs greasable bearings