They have a smaller output shaft (the splined section has a much smaller diameter than the smooth section of the shaft) and they use a tapered washer behind the hubs. What Makes SuperATVs GDP Portal Gear Lifts Better, Stronger, and Longer-Lasting than the Competitor? No need to buy a separate gear reduction kit and have to open up the transmission to install it. This is outlined in our limited lifetime warranty section on every GDP Portal Gear Lift page. Portals will add roughly 8 inches of width to your UTV and if you ride tight trails, you may find that your machine is now too wide to fit. What makes ours the most used portal gear lifts in the UTV/ATV industry? Next, determine the gear reduction ratio. Advanced Thermo-Tork gaskets and O-rings with excellent oil resistance and low deterioration rates, A sealed input gear and double-lipped output seal, 100% sealing coverage throughout so you can forget about oil leaks, Double-angular contact output bearings to prevent premature wear, Roller idler and drive bearings to maintain perfect gear meshing. Portals and monster tires are fun, but they can place additional stress on your machines frame. Will portals be stable if I decided to do some donuts here and there? We recommend changing your gear oil at least annually, but you should check it regularly. If you ride in mud or water, you need to check your oil after every ride and change it immediately if its milky or discolored. Theyre different from standard suspension lifts because they lift your machine at the hub instead of at the shockeverything gets lifted from the ball joints to the A-arms and frame. This calculator diameter 4340 hardened steel drive shaft, Housings use Thermo-Tork gaskets or O-rings that dont let anything through, Universal hub fits all major bolt patterns, Gear reduction reduces stress on your drivetrain, Our housings are reinforced for gear retention and optimized for oil flow, Advanced steel alloy backing plates are stronger than chromoly, There are no gimmicks and no vents because vents do more harm than goodwe know because we tested them, Advanced Thermo-Tork Gaskets and O-rings with excellent oil resistance and low deterioration rates, A sealed input gear and double-lipped output seal, 100% sealing coverage throughout so you can forget about oil leaks, Double-angular contact output bearings to prevent premature wear, Roller idler and drive bearings to maintain perfect gear meshing. Max tire sizes are measured at full compression and full turn. Required fields are marked *. All options must be chosen before group will submit. S o = S i / r (2) where . If there is one, be sure to use the information contained on that page as it is specific to the item you are purchasing. Hey Sean! When you narrow it down, give us a call at 855-743-3427, and well help you get it up and running again. Early portal lifts were chain driven and had a tendency to snap the chain and punch a hole in the casing. Or, change input variables (engine RPM, axle gear ratio and tire height) to determine vehicle speed in each forward gear. Ground clearance is sometimes sacrificed in order to improve handling characteristics and ride quality. (4) Assembled portal hub boxes complete with 9310 gears, seals, output shaft, Thermo-Tork gaskets, and thrust bearings, (4) Universal hubs and precision-ground stainless steel slotted rotors with lugs, (4) Specialized steel alloy backing plates, (2) Rear hub adapters (for specific year models only), (4) Shims (for specific year models only), All required hardware, including recessed castle nut socket, Required Suspension Setup with 8 Portals, 1.5 Forward Front A-Armsand3 Lift Kit, If you need help figuring out which gear reduction is right for you, check out our. We equipped this calculator with the gear ratio equation and the gear reduction equation so you can quickly determine the gear ratio of your gears. Law Firm Website Design by Law Promo, What Clients Say About Working With Gretchen Kenney. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. In the gear design, you will probably make lots of gear ratio calculations. Portals are great for this type of riding, especially considering the benefits of the built in gear reduction and the ability to add much larger tires. Gen 1, Gen 2, and Gen 3 refer to the different versions of GDP Portal Gear Lifts. How much will they add overall (both sides) to the track width? Even if you replace a bearing or two over the course of a few years, youre looking at around $40 a year on average. With the portal lift, youll have all the gear reduction you need to turn those bigger, heavier tires. GDP didnt make the first side-by-side portal kit on the marketjust the first kit that anybody gave a damn about. A high quality portal lift is a pretty sweet mod for your UTV, but it does have some drawbacks that you should be aware of. If in doubt between two sizes, it's usually best to order the larger size as seasonal costumes tend to run small. SuperATVknow how you ridepedal to the metal, full send, the whole nine yards. First, determine the input torque. Manufacturing with billet ensures the purity of the material, hence the strength increase. https://www.superatv.com/polaris-ranger-900-4-inch-portal-gear-lift-g3, https://www.superatv.com/4-inch-portal-gear-lift-seal-and-bearing-rebuild-kit, Precision ground gearsfor bettering mating, less heat, and quiet running, 9310 steel alloy gearsthe strongest gear material we could get, 15%, 30%, and 45% gear reductionsget the gear reduction that matches your ride style, 4, 6, and 8 portal liftsget the lift you want whether thats modest or really (really) big, Sealed drive gearoil cant get out where your axle goes in, Double-angular contact bearingbuilt to withstand huge loads on your output shaft, Billet and cast aluminum boxesyou can choose the box that meets your needs, Stronger backing platewe use a high-strength steel alloy thats stronger than chromoly to make sure your A-arms stay attached to your portal box, Leak-proof gaskets, seals, and plugswe know what leaks and what doesnt (and our portals dont). If i break one portal how do i order just one portal to replace it. Become a member to benefit your organization no matter your role in child care. Just call us at 855-743-3427 and well be happy to help. If you try to use your portal for something other than riding like some kind of weird power take-off and it breaks, we might not cover that. In that case, our 45% gear reduction option is for you. The given tires sizes are the largest we fit without rubbing. This allows the UTV owner to increase the height of their machine, without increasing CV joint angles and thus reducing the chance of the CV joint binding and causing damage. SuperATVCan-Am Defender dual idler portals are perfect for riders who dont slow down for anything.A Gear Reduction That Protects Your Drivetrain, Portals put the gear reduction right in the hub, after your transmission, prop shaft, differential, and axles. Leaving bearings unchanged when contaminated with anything other than oil can lead to major damage to the bearing, gears, and box itself. They are much more expensive than a standard suspension lift kit that repositions the shocks to add lift, though they have their own issues with ride quality and bad CV joint angles. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Gear Output Speed. They use gears in the box to lower your axle line and provide a gear reduction. Hi Jeff, we unfortunately do not offer an 8 lift kit for the Ranger. Also, you can use the gear ratio calculator in the design of gear reducer systems, automotive transmission systems, bike gear systems, and other kinds of gear pair systems. GDP 8 Portal Gear Lifts and billet aluminum portals are all Gen 3. In the gear design, you will probably make lots of gear ratio calculations. Enter your email address to subscribe to Dirt Portal and receive notifications of new posts by email. To build some of the longest-lasting kits around, choosing a forged gearbox eliminates the occurrence of porosity and cavities that reduce the strength of a part. 6 portals 30% or 45% reduction. We get the big tires we want, we get our torque back with the 15% gear reduction, and we keep our top speed. You can get 15% and 30% reductions in our 4 portals, 30% and 45% in our 6 portals, and 45% in our 8 portals. Precision CNC grinding ensures do. an input speed of 2000 RPM, and a reduction ratio of 3.5:1 GDP Portal Gear Lifts are awesome and completely change the way you ride. Billet housings have increased strength and feature a consistency of material better than cast. Scroll through the list of popular transmissions to find yours. All rights reserved. Whether you get cast or billet is a matter of personal preference. Gen 1 was the original GDP Portal Gear Lift. How to calculate gear reduction? You want to make sure that they are gear driven and not chain driven. Your email address will not be published. The axle, instead of running directly to the wheel hub, enters the upper half of the portal casing. The bigger the tire, the more power youre going to lose, which leads to needing a larger reduction. Prices may vary at dealerships, but you may be able to negotiate a deal on the lift or install, since your buying the lift through them. SuperATVCan-Am Defender dual idler portals are perfect for riders who dont slow down for anything. You can buy individual gears from us over the phone, and we also sell bearing and seal kits directly on the website: https://www.superatv.com/4-inch-portal-gear-lift-seal-and-bearing-rebuild-kit. With 4 GDP Portals, you can choose either a 15% or 30% gear reduction. Only emails and answers are saved in our archive. Google use cookies for serving our ads and handling visitor statistics. Webr = gear transmission ratio. What you need depends on what youre converting from and what youre converting too. These are sealed with gear oil inside and when things start turning, heat begins to build up, which increases the pressure inside the case. Gen 1 portals were sold before October 2017. Required fields are marked *. is: Calculated out this gives an output torque of 3,500 in/lbs and an You can target the Engineering ToolBox by using AdWords Managed Placements. SuperATVgears are made from the industrys toughest 9310 steel alloy. Ive found some 2020 Gen 3 6 portals. 8 portals 45% reduction. Portals also have another advantage over a suspension lift kit. Basically, if we sell a portal for a certain vehicle on SuperATV.com, we can sell you a conversion kit to make whatever portals you have fit that certain vehicle. This is the bearing that carries the middle gear, also known as the idler gear. Just aquired bike . WebGear Reduction by Portal Height. The output torque from a transmission with input torque 500 Nm, gear transmission ratio 3.8 and gear efficiency 0.9 - can be calculated as. Each housing is designed for a specific gear reduction. Basically, we dont cover wear items like bearings, seals, and gaskets, and its up to our discretion to decide if your portals were neglected or abused. WebIf you need help figuring out which gear reduction is right for you, check out our portal gear reduction calculator . This calculator will be a very big companion for you. Now your axle condition is a nonissue. More options for 6 portals mean more versatility, as well. The kits come with everything you need to complete the lift and if you decide to make some other upgrades, such as tie-rods and ball joints, this would be the perfect way to get it all done at one time. With more options, you can choose what works best with your ride. Sizes are measured at full compression and full turn if in doubt between two sizes it... 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