Proper drive belt tension. 3D Printer Belts Maintenance Tips.

Proper drive belt tension Proper belt tension ensures optimum performance of a vehicle's accessory belt drive system. Feb 16, 2024 · When the belt tension is correct, move to the left side to adjust the final belt alignment. (See Check Drive Belt Tension section) To achieve proper belt tension, you must release the door from the garage door opener before making any adjustments. Oct 20, 2024 · Maintaining Proper Belt Tension. Spring: Critical part of tensioner. No special tools needed - just a old school trick. It involves measuring the frequency generated by the belt under tension to determine its tension level. Oct 22, 2023 · Why is it important to maintain proper drive belt tension? Maintaining proper drive belt tension is vital for several reasons. Then, make a final alignment check. Position small O-ring on tool directly over the 10 lb. Here’s why proper drive belt tension is so important. Make sure to follow the specific instructions provided in your owner’s manual for proper adjustment of the drive belt tension. To minimize change in belt tension, use the left-side adjuster only to make final adjustments to belt alignment. The power steering, air conditioning, and sometimes even the water pump, rely upon this belt to provide them with power. Here's a step-by-step guide on how to do the method: May 7, 2024 · Check the belt tension. The same amount of adjustment needs to be made on both sides to maintain a proper alignment once one adjustment nut is May 8, 2023 · Determining the correct tension on a V-Belt is essential for maintaining the efficiency and longevity of belt-driven systems. Look for signs of wear or damage and replace the belt if necessary. Feb 1, 2010 · A drive belt that is not properly aligned can cause drive line noise and damage the drive belt, causing possible belt failure and loss of control of the motorcycle. Too little tension may allow the belt to slip and squeal. Designed to provide constant, trouble-free tension to belt for life of tensioner. Rear wheel alignment is satisfactory when drive belt remains centered on driven sprocket during forward and backward wheel rotation. $29. Home; Gates Carbon Drive is the high-tech belt drive for bicycles, motorcycles, & scooters. And if the belt is loose, it may come off its pulleys. If you can twist the belt around past the halfway point (meaning the ribs are actually facing upwards) it is too loose. 11) If a Challenge Belt Tension Gauge is not available, using a spring Calculate your Gates PowerGrip belt drive tension to determine the proper center distance, tension force, deflection distance and more to improve your belt system efficiency. In timing belt drives the pulley pitch diameter, d, is larger than the pulley Timing Belt Theory Introduction Geometric Relationships Figure 1a. Sep 7, 2024 · If the belt needs to be replaced, you may not desire to check the belt for the correct level of tension because it will need to be removed and replaced anyway. Jul 15, 2024 · OTC's Belt Tension Gauge is designed to allow you to properly check belt tension on drive belts; Correct tension ensures maximum belt and bearing life; Easy to read dual scale reads 30-180 lbs. This is called Slack Side Tension (Ts), or commonly called T2. (2. Clean the drive belt regularly using a soft brush or cloth to remove any built-up debris. If your alignment is true , that tension is great. See full list on ibtinc. Oct 31, 2024 · Prevents Belt Slippage: Proper tension prevents the belt from slipping, which can otherwise lead to noise and inefficient power transmission. V-belt tension is a function of two parameters: belt deflection and its force. Compare the “force” scale reading (Step 5) with the appropriate “force” value listed in Table 18, below. The spring should be approximately 1-1/4 inches in length. To achieve proper belt tension, you must release the door from the garage door opener before making any adjustments. But improper tension in a synchronous belt drive system — either too low or too high — can lead to Learn how to check and remove the rear wheel, making sure you check the Harley belt tension and belt alignment after you reinstall it. Ideal tension is the lowest tension at which the belt will not slip under peak 3. INCLUDES (1) A4722001370 Belt Tensioner (3) N000000001435 Mounting Bolts, M10 x 40 (1) DK1470E20004-1 Belt Tensioner Locking Pin (80mm) (1) DK1470E20004-2 Belt Tensioner Locking Pin (50mm) WHY IT MATTERS Mar 2, 2022 · How are people measuring the drive belt tension? I always thought it was with the rear tire on the ground with the weight of the bike on it. It ensures that the belt remains tight and in contact with the pulleys, preventing slippage and ensuring efficient power transfer. Jul 13, 2010 · I'm sure that somebody will correct me if I'm wrong, but I assume the 400 is like the other Rangers and does not have a tensioner or an adjustment for the belt. I read somewhere the rule of thumb is to find the longest part of each belt go to the middle and twist. 15. In general terms, belt pre-tensioning is needed for proper belt/pulley The wheel now safely back in, I'm stuck on proper belt tension. A drive belt that is too loose or too tight can cause a range of problems. 13. Proper belt tension is the most important step to ensure the performance and life of the belt. Is it standard practice for drive belt manufacturers to specify the correct tension for their belts? What if those specs don't match those in the service manual? You can also get the pencil type tension testers such as the following: Quick video on how to adjust a mechanical belt tensioner perfectly everytime. Procedure 1. Ensuring Proper Tension. 1. My question is how tight should the belts be. When the tension is correct, tighten the adjusting strap bolts and the pivot bolt. 12. We cover standard and high-performance belts, tension adjustments, and essential safety checks. Call us at 1-800-473-4804; Cooks Saw Mfg. Second twang, which looks, feels, and sounds identical to me, 118Hz. • To avoid damage, supporting structure including shafts and bearings must be designed to handle transmitted loads and belt tension(s). Proper drive belt tension is a critical setting on your Wood-Mizer sawmill. Use the appropriate tools to adjust the tension of the drive belt as needed. Now set the bottom one the amount of deflection you want away from the top one. Once the drive belt is moved into its desired tension, tighten the adjustment bolt to lock the belt in place. The same amount of adjustment needs to be made on both sides to maintain a proper alignment once one adjustment bolt is moved. And once the proper tension is determined and applied, synchronous belts rarely need re-tensioning. It has a triple belt drive system. Regular inspections, proper tension adjustment, cleaning, and timely replacement are key to maintaining a well-functioning drive belt. Mar 20, 2014 · The tool applies weight (pressure) to the belt, and the belt deflection, (movement when pressed in the mid-span) with that applied pressure is measured with or without the rider on the bike, depending on the model. Nov 13, 2010 · Now for the my next quandry, what is the correct tension for my drive belts? In case you haven't followed my other posts, I have rebuilt a Walker Turner cabinet saw from the 1950's. Harley makes a tool for this. Understanding Proper Belt Tension The proper tension of a V-belt drive is the lowest tension at which the belt will not slip at peak-load conditions. Verify drive belt tension is still within specification. Jul 23, 2024 · These belts are typically made from durable materials that can withstand high temperatures and constant tension. 3/8" should be about deflection, to measure belt tension by frequency, and to use a Tension Finder™. Round wire design not affected by corrosion or coil-to-coil contact. Check the Tension. Belt and pulley mesh for inch series and metric T-series, HTD and STD series geometry. 4. After adjusting the belt tension, it’s essential to maintain it regularly. The V-Belt Tensioner Kit retrofits an engine with a hydraulic style belt tensioner to use a friction style belt tensioner. May 29, 2022 · This video will show you how to properly tension your v-belt. Failure to perform proper maintenance can result in premature product failure and personal injury. 14. the correct belt tension is 5/15" - 3/8" deflection when 10 lbs upward force is applied to center of the lower strand. com Apr 12, 2024 · The belt frequency metre technique, also known as the belt tension frequency method, is a method used to determine the tension of a V-belt by measuring its natural frequency. what is the proper drive belt tension on 2006 streetglide? Steve 30+ yrs. How To Adjust A Blower Belt. Jan 7, 2021 · After approximately 30 minutes of running and thereafter, the tension should be set to the basic tensioning value. This helps to keep the drive belt in place, preventing it from slipping or coming off (from not enough tension), and also preventing premature wear to the accessories that it drives (from too much tension). Dec 4, 2024 · When the belt tension is correct, inspect the belt for proper alignment. One of the most common mistakes made during drive belt installation is incorrect belt tension. Feb 25, 2008 · Running the belt too tight or too loose is not a good idea. A . Jul 26, 2018 · The first thing is to get the front and rear wheels in PERFECT ALIGNMENT. Select from the dropdown options below to find the appropriate belt tension for your belt. Proper Belt Tension The proper tension for operating a V-belt drive is the lowest tension at which the belts will not slip at May 7, 2024 · Belt tension is important because it affects the efficiency and lifespan of a belt drive. , LLC 160 Ken Lane Newton, AL 36352 USA; Create Account; Sign In; More. Performance of the drive. Then, recheck belt tension periodically or when any of the symptoms of improper tensioning become evident; this helps maintain v-belt performance. Firstly, it ensures that power is efficiently transmitted from the engine to the blades, resulting in smooth and consistent cutting performance. (See Check Drive Belt Tension section) Jan 5, 2016 · Figure 7. If the belt is too loose, it may slip or squeal, leading to reduced performance and potential damage to other components. Follow the manufacturer’s guidelines for appropriate belt tension to determine the recommended tension. Ensure the axle is seated forward against the axle adjusters during this procedure. Oct 20, 2023 · In most cases, this will provide the right belt tension. Some newer models have an auto tensioner which is a lever that has a wheel that puts pressure on the drive belt and a spring on the other end that automatically loads the belt to the proper tension. Load the belt’s span and mass data into the meter so it knows what it is calculating. Both proper tension and proper Nov 20, 2024 · Experience has shown that a new drive belt can be tightened initially to 150% of the normal tension to allow for any drop in tension during break-in. Does not require a PTFE filler strip to prevent spring lock-up. A 20-hp drive running at 50 rpm at the output shaft of a reducer could have a belt tension over 16,000 lb. We recommend using the CHALLENGE Belt Tensioning Gauge to obtain the correct tension for the drive thus ensuring optimum life from the belts. May 13, 2024 · Re-check drive belt tension to verify it is still within specification. While rotating the wheel backward, tighten the left-side adjuster nut until the drive belt is centered in the Optibelt's free CAP drive calculation software is used to calculate various aspects of power transmission drives for v-belts, timing belts and ribbed belts. Adjust the top one on the gauge to correspond with a reference point on the bike when the gauge is in position on the belt. May 12, 2023 · Identify Belt Tension Factors: Several factors influence the tension required for proper V-belt operation. Force-deflection method. Jun 30, 2016 · Step 3: Add tension to the drive belt. * Ts = D X Te * D = Drive factor (Table B in Engineering Handbook: Drive Factor) Rear wheel alignment is satisfactory when drive belt remains centered on driven sprocket during forward and backward wheel rotation. Too much tension on a belt may overload Additional tension must be added to the effective Belt Tension (Te) to prevent slippage on the drive pulley. 1 What Is Proper Installation Tension One of the benefits of small synchronous belt drives is lower belt pre-tensioning in comparison to comparable V-belt drives, but proper installation tension is still important in achieving the best possible drive performance. Once the tension has been confirmed, tighten the rear axle nut to the final specification of 65 ft-lbs (88 Nm). Aug 10, 2017 · These belts need to be aligned correctly, but they also must be operated at the correct tension. Steve Aug 20, 2024 · Learn how to replace the drive belt on your Harley Davidson with our comprehensive guide! Discover the signs of wear to look for, maintenance tips, and the importance of regular inspections every 5,000 miles. Just pluck your belt like a guitar string and use the microphone on your phone to read the vibration frequency. 90 Part # 08-0350 BELT TENSION GAUGE Scale for easy reference Designed to work with all belt drive models with a 10 lb. lbs. The mass information can be provided by the belt Jul 23, 2024 · Incorrect Belt Tension. Too much tension can reduce belt and bearing life. Visually check the belt to see if it is properly adjusted. When running a Roots type blower (BDS, Weiand, Blower Shop, 6-71, 8-71, 10-71, 12-71, etc,) and you have either a 1/2" pitch, an 8mm rib, or even a 14mm rib drive belt, the object of a blower belt not slipping isn't "tension" like a normal V or serpentine belts because blower belts rely on the "teeth" or cogs of the belt to prevent slippage. Apr 5, 2021 · It is a black, all-thread bolt that can be adjusted by tightening the 1/2" nuts on the part. Recheck the belt tension at least A drive belt that is not properly aligned can cause drive line noise and damage the drive belt, causing possible belt failure and loss of control of the motorcycle. Note: Actual belt deflection “force” must not exceed the maximum “force” value shown in Table 18, below. Applying the proper tension is very important. Dec 23, 2015 · The drive belt – also known as a serpentine belt – keeps important components of your car’s accessory system running smoothly. If it is, it is properly adjusted. Compare your bicycle belt’s frequency to the included chart to see if you need to adjust the tension. Ensure proper Second, additional tension must be added to the effective Belt Tension (Te) to prevent slippage on the drive pulley. This is called Ts, or commonly referred to as T2. Technician B says belt tension should be checked even if the engine has an automatic belt tensioner. 3D Printer Belts Maintenance Tips. May 27, 2015 · Here is how I check belt tension on a serpentine belt: Go to the long side of the belt and grab the belt with your hand. Oct 2, 2023 · Understanding the Serpentine Belt and its proper tension is essential for the smooth functioning of a vehicle’s engine. Avoids Premature Wear: Correct length reduces the risk of unnecessary strain on the belt, extending its lifespan and preventing damage to engine components. This app measures belt tension sonically. Apr 25, 2022 · I'm wanting to check the tension on my drive belt but I can't find the proper procedure anywhere. Jul 27, 2021 · Goodyear Belts has developed tensioner and pulley product line that offer premium performance, ensuring a long service life. The torque capacity of the belt drive is directly related to belt tension: too loose and the belt can't handle full power (loose enough and it will ratchet over the sprocket teeth putting severe load on the bearings and damaging the belt teeth), too tight and the bearings will suffer. Study with Quizlet and memorize flashcards containing terms like Which type of resistor is commonly used in automotive circuits? Fixed value stepped variable All of the above, What is the current in a 12-volt circuit with a 6-ohm resistor connected series? 2 amps 4 amps 6 amps 12 amps, Which of the following is a source of energy in an automobile's electrical system? Battery AC Generator Both A drive belt that is not properly aligned can cause drive line noise and damage the drive belt, causing possible belt failure and loss of control of the motorcycle. A belt will wear over time (not really "stretch"), so it's possible your performance loss is related to that. 3. Check the tension regularly by using the manufacturer’s recommended method. Proper belt tension is a critical step when installing a belt. First twang, 20Hz. 10. Then worry about tension. To minimize change in belt tension, use only the left-side adjuster to make final adjustments to belt alignment. Aug 5, 2020 · Proper belt tension is critical when installing a belt as it ensures long satisfactory operation and determines how long the belt will actually last. All I do for tension is 1/2 - 9/16" deflection and a simple 45 degree twist. In summary, maintaining the proper belt tension on your riding lawnmower is critical for optimal performance. You may still want to check the tension of a damaged belt if you need to drive the vehicle to get repaired. Mar 22, 2023 · Now comes the fun part - actually checking the tension of your serpentine belt. One critical aspect of drive belt installation is ensuring proper tension. If the belt tension is too low, the belt may slip on the pulleys, causing noise, vibration, heat, and wear. With the alternator in its new position, applying increased tension to the drive belt, check to make sure the belt is tight enough to run the accessories properly. Apply gentle pressure upwards so that it adds tension to the drive belt. * Ts = D X Te * D = Drive factor (Table B in Engineering Handbook: Drive Factor) Next, the total tension To = Te + Ts BELT TENSION TOOL General This tool is designed for use as an aid in properly adjusting belt tension on all Harley-Davidson model motorcycles equipped with a secondary drive belt. Step 3 – Adjust the drive belt tension. Ensure your ride runs smoothly and lasts longer with these expert insights and step-by-step Jan 29, 2024 · Step 2: Determine the Correct Belt Tension. Sprocket teeth should be visible from both sides of drive belts. Check Belt Tension Following the drive component inspection, the final step is to check belt tension and, if necessary, retension the belt. General rules of tensioning 1. While there are other manufacturers of belt tensioning equipment, the following discussion and steps are based on Carlisle products. An overtightened drive belt can cause premature wear and failure on many parts of the sawmill including cylindrical drive bearing, drive belt, and even engine failure. Optibelt CAP software can calculate the following: Performance & efficiency Designed for large belt and chain drives, these tensioners maintain correct drive tension for smooth operation, maximum power, and a long service life. The Treadmill Motor Drive Belt is adjusted independently from the walking belt. 9. The serpentine belt, also known as the drive belt, plays a crucial role in powering various engine components such as the alternator, power steering pump, water pump, and air conditioning compressor. Locate the drive belt automatic tensioner. Belt tension is critical. If you can't twist the belt at all it is too tight. Updated June 2019 || One of the benefits of synchronous belts is their ability to operate with lower tension than their V-belt counterparts. After printing 3-5 times, it is important to check the belt tension and tighten it if necessary, as belts tend to loosen with prolonged use. Maintaining Proper Belt Tension: A Recap. There should be two O rings on the barrel of your tension gauge. Also, what is the easiest way to align all the belts? Will the belts slightly out Inspecting a drive belt for damage and correct tension. Then, torque the adjustment bolt to the manufacturer’s specifications. While rotating the wheel backward, tighten the left-side adjuster For instance, lessening the tension on your tail roll is equally as effective in steering your belt as adding more tension. If too little tension is applied, the belts may slip. If you open up the hood of your car, you'll see that the serpentine belt is on the front of your engine. belt while wrapped around the pulley. To ensure proper belt drive performance, install Goodyear Belts’ tensioner and pulleys to restore a belt drive’s performance. Improper tension or alignment can cause drive line noise and damage the drive belt. Equipment that relies on drive belts is designed to operate with the belt at a specific tension to achieve optimal performance. Adjust tension as needed: If the drive belt is too loose or too tight, it can affect the performance of the vehicle. Slippage also causes the belt to run hot and age prematurely. 10) For a single belt drive, use a straight edge across the two pulleys to act as a reference point and apply the Challenge Belt Tension Gauge as per point 6. NOTICE To minimize change in belt tension, use LEFT SIDE adjuster only to make final adjustments to belt alignment. Tensioner: The tensioner is a mechanical device that keeps the drive belt under the proper tension. Belt and pulley mesh for AT-series geometry. Here are potential problems you might encounter with improper belt tensioning: Mar 1, 1999 · For example, the static drive belt tension between a 100-hp, 1760-rpm motor and the driven shaft can easily exceed 2500 lb. 7. How to use the Harley Davidson drive belt wrench with a regular ratchet. Here are some tips for ensuring optimal belt tension: Regular Inspections: Check the belt tension every 25 hours of operation or before each mowing season. Depending on the tensioner’s design, it may have either a square slot (that accepts the drive end of a ratchet) or a traditional bolt head. V-Belts, also known as fan belts or drive belts, are integral components in various engines, machines, and appliances, transferring power between different parts such as the alternator, water pump, or air conditioning compressor. How you tension a belt at Oct 10, 2015 · Hi, had the annoying belt squeal so followed the how to form the forum on how to adjust the belts. The deck belt can be adjusted by loosening the nut on the deck idler spring and sliding the spring forward or backward to add or remove tension accordingly. This method has been verified by successful drives globally Method of belt tensioning using the CHALLENGE Belt Tension Gauge 1] Install the belts to be a snug fit around the pulleys Nov 6, 2024 · This mistake can lead to rapid belt wear and repeat belt failures if the tensioner is weak or worn out. ) and 130-800 Newtons; High-grade materials ensure quality performance over the lifetime of the tool Dec 5, 2024 · When the belt tension is correct, move to the left side to adjust the final belt alignment. If the belt is either too loose or too tight, sprocket noise may result. Dec 21, 2015 · Step 3 – Adjust the drive belt tension. The drive belt can only perform its job, however, if proper tension is maintained on it. Be sure to keep the axle seated forward against the axle adjusters during this procedure. 25. Refer to your Owner’s Manual for proper belt tension specifications. V-belts operate on friction; the friction is multiplied by the mechanical advantage of the wedging principle. part number HD-35381 Belt Tension Gauge. By checking the condition of the belt, inspecting the spring, bracket, and other components, and following precise adjustment steps, you can effectively maintain your lawnmower. Recording this measurement can be done in several ways. 16. Pump the rear brake pedal several times to reset brake pad distance. Figure 1b. If it twists to 90 degrees then the tightness is correct. Mar 13, 2006 · Check your tension at the top of the belt on a Softail. Oct 3, 2020 · However, it only shows the tension of the belt itself, not the pushing force. Feb 21, 2024 · How To Check for Proper Sawmill Drive Belt Tension. 5-15 ft. Finally, you can use a small model like a calibration cube to test whether the belt tension is suitable. 24. To adjust the drive belt tension on the earlier year models, begin by loosening one of the jam nuts. Software must me registered for extended use. The tensioner usually consists of a pulley and a spring-loaded arm that applies pressure to the belt. Pro Tip: Over-tensioning your belt will lead to splice failures and tracking problems! Always make sure that your conveyor belt has the proper tension in order to have accurate tracking. Spring Tension Method Engine and motor driver v-belts should be tensioned to the proper tensioning requirements by using a Gates V-Belt Tension Tester (PN 7401-0076) or equal. My main question is, do you check it with the tire off the ground, on the ground or on the ground loaded? All of these will result in a different reading. For applications without a variable-frequency drive (VFD) or starter, a belt must be tensioned to handle increased motor torque during startup. mark. Be careful not to use any harsh chemicals or solvents that could damage the belt. Correct V-Belt tensioning is the single most important factor necessary for long, satisfactory operation. While rotating the wheel backward, tighten ensure proper tensioner arm alignment relative to belt and counters tilting. 6. Move the generator towards the engine a little at a time while feeling the tension on the belt with your other hand. If the “force” reading is outside the range, readjust the belt tension. 23. Use only the left-side adjuster to make final adjustments for belt alignment. A loose drive belt can cause problems like wavy cuts or diving blades. Technician A says that if a drive belt does not have the proper tension, it may produce squealing and chirping noises. This is a pulley that is either mounted to an adjustable pivot point or a spring mechanism. If yours does, turn the screw adjuster to move the wheel and alter the belt tension. I always notice a slight performance gain everytime I out a new one on. Drive belts need to be tightened to a specific tension level to prevent slippage or excessive wear. NOTE To minimize change in belt tension, use LEFT SIDE adjuster only to make final adjustments to belt alignment. Proper tension also prevents belt slippage, which can lead to reduced Jul 1, 2011 · The proper tension of a V-belt drive is the lowest tension at which the belt will not slip at peak-load conditions. Place the gauge on the belt in the middle of the longest span between two pulleys. If you have a tension gauge, this is easy. Some cars have an idler-wheel pulley which presses on the belt. specificationHere are the updated belt tension specs; At time of setup the belt tension should be 2000Nm - - after 10. Don't worry about the belt being on the left side of the rear pulley or the right side of the rear pulley as long as the alignment marks are correct and the Jan 14, 2016 · In order to keep the proper tension on your vehicle's serpentine belt, a drive belt tensioner is used. Now I am reading my manual for the 2021 model and it say to have the rear tire suspended. Proper tension is crucial for the drive belt to function correctly. I've downloaded the Gates app where you're suppose twang the belt and it determines the frequency, and either I am a terrible belt strummer, or the app is a fantastic random number generator. Using the appropriate tool, push the tensioner to rotate it away from the belt and relieve tension. Then, apply pressure to the belt tension gauge by rotating the gauge handle or using a wrench to turn the gauge bolt. I do all my alignment and tension work on a stone cold suspension. Ensure the axle is seated forward against axle adjusters. Insert the pry bar above the alternator pulley. . 030 Feeler Gauge can be used to determine the correct belt tension. I can live with a little belt whine knowing it is set to factory specs. 2. experience, MMI, HD technician, HD early, engine rebuild/performance, bike builder, kit bike program manager, CCI 2001-2004 Jun 30, 2019 · The purpose of your drive belt tensioner is to apply the correct amount of tension to your drive belt. It's a '21 F3L. Oct 30, 2022 · While installing a new v-belt, use a tension gauge to establish the correct tension. Spring-Loaded Adjustable-Arm Roller Chain and Belt Tensioners why does belt tension matter? Proper belt tension is a critical step when installing a belt. Software installs onto any Windows operating system 2000/XP/7. Technician B says maintaining proper oil clearance and using a lower viscosity oil will increase the fatigue life of a bearing. These include the desired slip ratio, belt type, wrap angle, power transmitted, and specific requirements of the application. Choosing the Right Drive Belt for Your Toro Timecutter MX5000 When it comes to maintaining and repairing your Toro Timecutter MX5000, choosing the right drive belt is crucial. Apr 28, 2019 · Too loose of a belt and you risk jumping a tooth and stripping the belt, too tight and you risk breaking the belt. Jul 4, 2008 · Note: The Harley belts are concave to track better (?) but this belt is flat, and will migrate to one side. Step 3: Input the Belt’s Information Into the Meter. Technician A says excessive drive belt tension can cause wear on the upper, front main bearing. eiymkm nshmpc auzc twyfzq obb lmobct hiyf oibp jhu ynto