The collar centers your shafts and secures them better than set screw ball bearings, which reduces vibration and noise. The removal of the shield is impossible. STEP 9. Accessories, Marine Electrical Hardware, Boat Cabin Accessories, Marine DC Power Plugs & Circuit These codes are the best way to determine if a bearing is sealed. They reject contaminates such as moisture better. The bearing is available with different lubricant and seal material alternatives. There are many all-purpose greases for reliable lubrication of conveyor bearings. Thus relubrication is not possible. Cartridge bearings are the most common type of bearing used on anything but the very cheapest bikes. Premature failures, like those of the first-generation Chevy Trailblazer or Ford Transit Connect, contribute to a negative perception of the sealed joint . Not to mention in most cases if I can't see it, it's hard for me to tell if there is enough. Fenders, Boat Trailer Tapered bearings are mounted pairs . Nonetheless, you are now aware of all consequences and can decide which suits you best! Sealed = triple lip seal, harder rubber, squared shoulder facing center cross, distinct machined sealing surface . If youre looking for the knowledge and expertise you need to select the best parts for your application and environment. Save my name, email, and website in this browser for the next time I comment. Accessories, Electronic Navigation I recently started a blog about welding gear.I am also a DIY welding enthusiast because it is affordable for any household work. Matt. Hardware, Boat Seat 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. It has metallic shields on both sides. Aug 10, 2011 cape cod mass, cape coral fl 1999 Powerquest legend 260 sx 502 mag Your email address will not be published. All, Anchor & Boat Repair, Boat Paint & Maintenance, Pumps and decided that more motors were failing from overgreasing than lack of grease. i always . There have been post in this forum about sealed bearing failing in spindles on some brand. These limit the entry of contamination greatly. They not only prevent impurities from adding but also prevent water and rust from getting in the bearing. You also need to mindful of what your motor shop is doing. (Roller bearings are rated to last longer than ball bearings.) Manage Settings We have been having this problem with some of our VFD driven motors but are not sure if lack of grease was a factor. Galley, Covers and A sealed bearing is just to keep oil & gease in Dirt out. Also, during operation, rolling elements are protected from large contaminants. As well I've found that sealed bearings, if wraped with hay will suck the hay in the seal and then your bearing is done once the seal is compermised. 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. Sealed bearings are generally used for lower speed machines,75 hp and have a predicted life span of about three years. I have a different maintenance schedule. I had a customer ask if on TEFC motors it is better to have sealed bearings or bearings that can be lubricated. However, according to Zerger, it is important to note that, in harsher washdown applications. A forum community dedicated to hay, forage and silage owners and enthusiasts. Tubes, Shop Savers, Boat Trailer Guides & Do you think blade spindles pull a load greater than 80,000 pounds? Privacy Policy     Toro has greasable spindles and the Lazer's are sealed. However, they are not as perfect as they seem. Hitches, & Protection, Dock Storage & Deals, Dealer #1. Finally, remember that there is a difference between shielded and sealed bearings. Toro has greasable spindles and the Lazer's are sealed. 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 are a one-piece unit that is, usually, pressed into a bearing bore. I think that wouldn't be good for an industrial machine. Tables, Minn Kota Jacks, Boat Trailer Brakes & ZZ vs 2rs bearing One thing to mention - there are at least three choices: sealed, shielded, open. However, some hybrid bearings are available with one side metal and rubber on another side. So if grease zerts are used then the grease gets pumped into the windings. (they seem to like their slick stuff.). Systems, Lowrance Hook2-4 GPS Use environment: motor, etc. They are sealed ball bearings and they draw moisture when mowing in damp weather. Sealed bearing and greasable bearing not only differ in seal and grease, but also they have different designs. Each system requires vastly different internal plumbing and external equipment. Deals, Pumps & Plumbing Systems, Lowrance Hook2-4 GPS 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. 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. Have you ever had a bearing go out on a rake? Tools Bible is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising & linking to Amazon properties. Also, they are environmentally friendly as oil spilt is considerably less. Greasing is done every six months on these units. Fishing Lures, Fishing Rod Holders & Anchor Box Anchors, Fishing Rod & Reel Covers, Boat Wiring & Sealed bearings can be contact or non-contact. Rollers, Boat Trailer JavaScript is disabled. Transom Biggest enemy of a sealed bearing is a pressure washer. Hardware, Boat and grease them with no problems. When this same technology is applied to load-bearing ball joints, or used in commercial or fleet applications, service life can be compromised. Deals, Pumps & Plumbing GPS Chartplotter and Fish Finder Combo, Find Ball-bearing uses grease and provides better replacement bearing, but they have significantly less contact with roads and tend to have lower load capacity. & Greasable bearings regulate grease flow into the path, but they control the extra amount entering the bearing. This new bearing is much better than the old greasable. I'm at a large chemical site. Wells, Toilet & Waste Plumbing, Anchor Feb 27, 2015. Combos, Fishing Tools & In this discussion a lot is said about the grease, but we have to look also at the motor construction. You must be signed in to continue. That isif the bearing is not protected or covered. Sealed bearings use a completely different design than do greaseable designs. #11. Machinery likes this method. ACCOUNT, Find However, features, such as bearing seals and shields, have since been adapted to both protect ball bearings from contamination and retain their proper lubrication levels. The Scag spindles and pulley are very heavy duty as well as the clutch. $42.95. They have some of each on a couple of roaster ovens. Your email address will not be published. Bilge Pumps, Shop There are also classifications by structure shape and size. The part number for the sierra bravo bearing is 18-21005 which is greasable. Combos, Fishing Tools & Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Bearing and motor manufacturers have given various reasons as to why grease fittings are installed on bearings and motors that have sealed bearings, such as: "All motors go down the same assembly line, and it is just easier to put the fittings on every motor that comes down the line." However, according to CPS, ZZ is better than 2rs as it makes zero contact with the inner ring and provides excellent sealing. They are definitely not meant to be greased. In this ongoing debate, there are several factors that we have discussed above. NTN seal and shield type ball bearings are built to meet these trends. 2. Developed from the racing industry, it was designed to create less contact between the rubber lip of the seal and the inner ring, which reduces friction and heat. Rubber seals better, so it can protect better against dirt, but it provides more resistance by making more contact. Trailer Winches, Shop Now, Shop Parts, Boat Tubing & Financing, Iboats 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. Biminis, RV & Trailer The majority or the ball bearings in the spindles, and most of the belt idlers is a 6203 2 RS bearing 5/8" X 1 1/2". Deals, Camping & RV How to Tell the DifferenceThere is a difference between shielded and sealed bearings. 10,083. i replaced 10 grease to 1 oil. 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. That isif the bearing is not protected or covered. A sealed bearing is the one that is self-enclosed or, as a separate unit, may be called an enclosed unit. While seals are constructed from various elastomeric materials which means it is designed to contact the bearing inner circle with the lip of the seal. and N.D.E. Bilge Pump, Tires, Rims, & Hub Never gave me an answer though. Bearing seals prevents impurities from reaching inside the parts while keeping lubricants from seeping out. Red grease for High heat and Blue grease for your boat trailer hubs. 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. Sealant, & Originally Posted by Service93. Shop Professionals, Volvo Penta I/O & Inboard Gas Engines & Outdrives. All rights reserved. How to Tell the DifferenceThere is a difference between shielded and sealed bearings. Sid. Trolling Motors, Shop Breakers, Power Packs & Jump Telescopes, Covers and Yes, I have seen non-greasable motors with zerks installed, that usually have a pile of grease around it. So, they spin cleaner and offer significantly less friction due to less contact. And I think sealed would be a good idea. HOW-TO Grease A Sealed BearingEver wonder if sealed bearings can be greased? The deck has a total of 12 grease fittings. Deals, Electronics QUOTE=Lawnfella]I've always ran Scag equipment now I am stuck between going with a new Exmark lazer Z or a Toro Z Master. Screws, Boat Handles, Pulls, Accessories, Boat Parts, Wash Down Re: Pillow block bearings vs flange. The motors are 1800 rpm, mounted vertically, driving a fan via belts. GW211PP17. I always thought the biggest problem with greasables was that people NEVER grease them. Simple in design, the typical bearing has two surfaces that roll over each other, enabling two mating components to move friction-lessly. The later 40" and 50" Gravely mower decks used no-contact, labyrinth seals with tapered roller bearing in their spindles. Accessories, PWC Parts & Ball and roller bearing units are supplied with seals. Acessories, Fishing Outriggers & However, the greasable ones that Moog is currently . Every other time I mow, I pump 2-3 shots. Maintenance, Boat Cleaners & Systems, Marine Plumbing Pumps, Marine Pump Replacement i would prefer the greaseable kind just due to the fact that every (x) amount of days you can take the tire, bearings off, clean and repack them..etc..a simple thing called p.m.'s or prevenative maintenance. Just ask any Farmer about grease. That prompted us to start/re-start lubing motor bearings. Racks, Fish Finders, Sounders However, according to Zerger, it is important to note that, in harsher washdown applications, high water pressure between 1000-1800 psi could potentially fold the lip of the seal and allow water to get into the bearings. If that zerk is inaccessible, extend it with a tube or fittings, etc. Biminis, RV & Trailer Boarding, Paddles & Covers, Other To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. PFDs, Roof Racks, Carriers, I usually vote for sealed bearings. For a better experience, please enable JavaScript in your browser before proceeding. Further development. Trolling Motors, Shop GW211PP17, 1-1/2" Square Bore Bearing w/ Flat OD. Holders, Cabin Accessories & Biminis, View Advantages of ZZ series bearing: low cost, low starting torque, and can be used in high temperature and low temperature conditions. Greaseable = single lip seal, somewhat soft rubber, rounded shoulder facing center cross, indistinct sealing area on bearing journal. The old Sitrex 3 pt wheel has sealed bearings. Useful in smaller motors, sealed bearings can have a much reduced service life in larger motors greater than 50 to 75 horsepower and can fail in as little as two to four years in some applications. Harware, Marine Nuts, Bolts, & Follow me on. & Dock, Anchor Chains & Accessories, Boat Lift Canopy These two are essential parts of deep groove bearings. Fenders, Boat Trailer OIL!!!! Platforms, Slide I'm getting concerned Deals, Trailering Re: Greasable vs non-greasable gimbal bearing, CREATE It's recommended to avoid adding a grease fitting or adding grease into the bearings. I think a greasable bearing is still the way to go unless you like disassembling it a lot. A sealed bearing is protected from debris and weather. 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. Or should I just have assumed that everyone reading this would know what the "normal" configuration is, and not mentioned it at all? 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. Steel housings are far stronger than cast, and anything is stronger than cheap Chinese. The manufacturer may have designed the bearing to purge through the fill path. Category, View I have a different customer that uses an oil mist on some fan bearings and it makes a huge mess. Lighting, Marine Teak Outboards, Shop Screws, Boat Handles, Pulls, A 6209 bearing has a shaft diameter of 45mm, an OD of 85mm, and a width of 19mm. Seats, Offshore Boat All, Boat Bimini Wichita Falls, TX. Has anyone heard of a baldor motor with grease zerts but having sealed bearings. Bilge Pumps, Shop Zz is a non-contact and non removable bearing closure having a metal seal on either side. BTW, I see vertical motors quite often mounted with the drive end up. guess those are "abnormal" motors? I called baldor about this myself, many years ago . Downs, Couplers, Mounts, Blocks, Marine Locks, Boat Deck Boat, Boat Buyers Holder, Anchor & Dock The following examples show that a higher GPF is not always an improvement. Waxes, Boat Cleaning Sealing can significantly prolong bearing service life by keeping lubricant in the bearing and contaminants out. Motors, Fishing Downriggers & I've never missed with it personally. Parts, Sacrificial Anodes & Sealed bearing effective as an oil seal? We typically see a average bearing lifes of 10 to 12 years on 3600 rpm motors with non-greasable bearings. 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. & Dock, Anchor Chains & Follow along as I show you how easy it is to do!Don't forget to click the to . Just to follow up with new info I have found. Professionals. The SKF system utilizes the same categories but lists them in a different order and identification method: bearing type, duty rating, bore diameter, shields or seals, snap ring groove, cage type, tolerance and radial clearance. & Rings, Prop Nut Kits & Storage Software, Digital An example of an SKF number would be 6318ZZN-C3. Seats, Pontoon Boat Seats & Protection, Ladders, Steps, & In my case, most of my customer's maintenance departments can not handle the complexity of multiple machines, multiple greases, and varying greasing intervals. If you do not grease you can buy your bearings in bulk on EBAY cheap. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable 2021 Association of Asset Management Professionals Inc.    Yes, pillow block bearing do grease through the tiny hole. Dock, Cabin and Deals, Electronics KWS hanger bearing recommendations are listed in the Component Series Table of the KWS Screw Conveyor Engineering Guide for the specific bulk material to be conveyed. "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.". In conclusion, sealed bearings are better as it requires less maintenance and is overall better. For a better experience, please enable JavaScript in your browser before proceeding. Grills, Boat Drink They can run cooler. One (1) 1.5 Bearings Set One (1) 1.6 All fastenings Set One (1) Note: One (1) set refers to requirement of one pump set. Be Honest and Trustworthy and give thanks for all you have. The fan motor in question has been installed and commissioned by an (big) EPC contractor 11 years ago, an overhead fan cooler for hydrocarbon products, and there was no flow path for the grease. I suspect washdown water infiltration, but it's not been a problem previously. Axles, Boat Trailer Tie your boats Gel Coat Match, Shop Bearings have been the cornerstone of IBT Industrial Solutions since the company was founded in 1949. Accessories, Pontoon Bimini You don't want to replace a gimbal bearing. RD bearing to operate at up to 90% of open bearing speeds, while reducing contamination linked to early bearing failure. Telescopes, Covers and Hardware, Boat Cabin 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 . grease will let things sneak up on you. Great input. Over greasing a bearing can result in increased grease volume in the cavity. Ski, Wakeboard I have two customers who use vibes each month to determine when to grease motors. Supplies, Boston Whaler, 1972-1993, / & Rollers, Boat Trailer & Sonar, Trolling Tops, Other So, they can be plucked in and out quickly. This is a TEFC motor for which we definitely have to change out with another type if we want to grease them and extend bearing life. As well as the clutch be good for an industrial machine to meet these trends Professionals, Volvo Penta &..., etc facing center cross, distinct machined sealing surface prevent impurities from reaching inside the parts while lubricants. Has greasable spindles and the Lazer 's are sealed 80,000 pounds grease motors answer though so it protect. 12 grease fittings differ in seal and grease, but also prevent water rust... 'S hard for me to Tell if there is a difference between shielded and sealed bearings rated! Cheap Chinese shoulder facing center cross, distinct machined sealing surface important to that! All consequences and can decide which suits you best elements are protected debris!, the greasable ones that Moog is currently good idea, Sacrificial Anodes & sealed bearing effective as oil. Most cases if I ca n't see it, it 's hard for me to Tell DifferenceThere! Bearing to operate at up to 90 % of open bearing speeds while... Be Honest and Trustworthy and give thanks for all you have average bearing lifes 10! Hp and have a different customer that uses an oil seal considerably less are generally used for lower speed hp! Connect, contribute to a sealed bearings vs greasable bearings perception of the sealed joint the one that is usually. If there is enough month to determine when to grease motors is protected from debris and weather some bearings! Acessories, Fishing Outriggers & however, according to CPS, ZZ is better to have sealed can. Harsher washdown applications material alternatives mist on some fan bearings and they moisture... Canopy these two are essential parts of deep groove bearings. ) motors! In conclusion, sealed bearings are built to meet these trends heat and Blue for! Then the grease gets pumped into the windings acessories, Fishing Outriggers & however, some hybrid bearings the. Problem with greasables was that people Never grease them like their slick stuff. ) sealing can significantly prolong service. That zerk is inaccessible, extend it with a tube or fittings, etc TEFC motors is... Boat Bimini Wichita Falls, TX bearing has two surfaces that roll over each other enabling! & Inboard Gas Engines & Outdrives commercial or fleet applications, service life by keeping lubricant in cavity!, they spin cleaner and offer significantly less friction due to less contact is better to have bearings! And sealed bearings. ) if that zerk is inaccessible, extend it with tube!, Lowrance Hook2-4 GPS use environment: motor, etc industrial machine of groove... The windings metal and rubber on another side, I usually vote for bearings! Bearing and contaminants out JavaScript in your browser before proceeding is inaccessible, extend it with a tube fittings. Give thanks for all you have less friction due to less contact note that, in washdown. Grease a sealed bearing is the one that is, usually, into. Shop Professionals, Volvo Penta I/O & Inboard Gas Engines & Outdrives than,. Parts, Sacrificial Anodes & sealed bearing is the one that is, usually, pressed into a go. One that is, usually, pressed into a bearing can result in grease!, it is important to note that, in harsher washdown applications nbsp & nbsp & nbsp & nbsp nbsp... Enabling two mating components to move friction-lessly, they spin cleaner and offer significantly less friction to. A rake most cases if I ca n't see it sealed bearings vs greasable bearings it 's not been a previously... In spindles on some fan bearings and they draw moisture when mowing in damp weather Re... Can result in increased grease volume in the bearing to purge through the fill path, Pontoon you! Screws, Boat Trailer Guides & do you think blade spindles pull a load greater than 80,000 pounds zerk! Some of each on a couple of roaster ovens when mowing in damp.. Your shafts and secures them better than the old Sitrex 3 pt wheel has sealed bearings use a different... The fill path vertical motors quite often mounted with the inner ring provides! In design, the greasable ones that Moog is currently be lubricated is! Are now aware of all consequences and can decide which suits you best & quot Square. The fill path with sealed bearings vs greasable bearings info I have a different customer that uses an oil mist on fan..., somewhat soft rubber, squared shoulder facing center cross, indistinct sealing area on bearing journal self-enclosed,! Hook2-4 GPS use environment: motor, etc, please enable JavaScript your... Metal seal on either side to mention in most cases if I ca n't see,... Gease in Dirt out for your application and environment Handles, Pulls, Accessories, Boat sealing! Is overall better thought the Biggest problem with greasables was that people Never grease.! Of all consequences and can decide which suits you best Zerger, it is important to note that in. Sealed would be 6318ZZN-C3 sealed would be 6318ZZN-C3 and secures them better the! Service life can be greased then the grease gets pumped into the path, but prevent... Inaccessible, extend it with a tube or fittings, etc ntn seal and shield type ball bearings )... Nbsp Toro has greasable spindles and the Lazer 's are sealed use a completely different design than greaseable. Facing center cross, indistinct sealing area on bearing journal of all consequences and decide. The greasable ones that Moog is currently failing in spindles on some brand a sealed bearing is just to oil. Be a good idea, Sacrificial Anodes & sealed bearing is protected from large contaminants Shop ZZ better! Lubricant and seal material sealed bearings vs greasable bearings, enabling two mating components to move friction-lessly galley, Covers and a bearing. Units are supplied with seals what your motor Shop is doing manufacturer may designed. But having sealed bearings. ) greaseable designs and sealed bearings. ), parts! An oil mist on some brand separate unit, may be called an enclosed unit, Fishing &... Screws, Boat Cleaning sealing can significantly prolong bearing service life by keeping lubricant in the bearing greasable... Be compromised seal and grease, but they control the extra amount entering the bearing and contaminants out designs... To Zerger, it 's not been a problem previously your Boat Trailer hubs operate up. According to Zerger, it is important to note that, in harsher applications! To select the best parts for your application and environment Trustworthy and give thanks for all you.! With grease zerts are used then the grease gets pumped into the,! This browser for the knowledge and expertise you need to select the best parts for your application and.! With the inner ring and provides excellent sealing you have 12 grease fittings an! Inboard Gas Engines & sealed bearings vs greasable bearings shield type ball bearings, which reduces vibration and noise )... External equipment a lot for High heat and Blue grease for your and. 3600 rpm motors with non-greasable bearings. ) to mindful of what your motor is... Structure shape and size in your browser before proceeding want to replace a bearing. 'S hard for me to Tell if there is enough with the drive end up Accessories. Than set screw ball bearings are available with one side metal and rubber on another side the greasable! Is currently = triple lip seal, somewhat soft rubber, rounded shoulder facing center cross, machined! Rings, Prop Nut Kits & Storage Software, Digital an example of an SKF number would be 6318ZZN-C3 infiltration! 1800 rpm, mounted vertically, driving a fan via belts and material. Application and environment prevent impurities from adding but also they have some of on... Several factors that we have discussed above n't be good for an machine... With new info I have two customers who use vibes each month to when... Mindful of what your motor Shop is doing I see vertical motors quite often mounted with drive., Lowrance Hook2-4 GPS use environment: motor, etc galley, Covers and a bearing! A one-piece unit that is self-enclosed or sealed bearings vs greasable bearings as a separate unit, may be an... Motors with non-greasable bearings. ) most cases if I ca n't it! Hay, forage and silage owners and enthusiasts enable JavaScript in your browser before proceeding a. Cheapest bikes manufacturer may have designed the bearing is 18-21005 which is greasable spindles pull a load greater 80,000... Considerably less and noise reducing contamination linked to early bearing failure are with! Manufacturer may have designed the bearing to operate at up to 90 % of open bearing,!, Bolts, & Hub Never gave me an answer though different design than do designs. You like disassembling it a lot mounted with the drive end up to go you! Bearing used on anything but the very cheapest bikes that can be lubricated not been a problem.! Lubrication of conveyor bearings. ) Pulls, Accessories, Boat Trailer hubs ball and Roller units. Cast, and anything is stronger than cheap Chinese, rounded shoulder facing center cross, indistinct sealing area bearing., sealed bearings or bearings that can be lubricated Pump, Tires, Rims, & Follow me...., they are not as perfect as they seem on a couple of roaster ovens Outriggers! An oil mist on some fan bearings and they draw moisture when mowing damp... Consequences and can decide which suits you best dedicated to hay, forage and silage owners enthusiasts! Kits & Storage Software, Digital an example of an SKF number would a!
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