24. The Bolt Torque & Preload calculator can be used to calculate the torque required to achieve the desired preload on a bolted joint. The minimum preload can be calculated by dividing the maximum preload through the tightening factor α A – see table on page F.046.. How much will multiple bearing … Lastly if the pinion nut torque required to reach correct preload is less than 180Nm then the crush sleeve should be replaced. Once the pinion has been seated, recheck the pinion preload with your inch-pound torque wrench. I installed the seal and yoke and then tightened the pinion nut until the preload on the bearing was about 15 inch pounds. Then measure the pinion preload by turning the pinion nut with an inch-pound torque wrench. torque, wrench, torque wrench, pinion, preload, pinion preload, set, set up, setup, diff,TOOL-TW-ILBS,2295D,Inch Pound Torque Wrench. m (200 ft. (New bearings get more preload) It also helps to have the housing supported so that the pinion gear shaft is vertical with the nut pointing up. If the pinion bearing preload exceeds the specified allowable range, install another new crush sleeve and start over! Pinion bearing inch/lb torque wrench for setting pinion bearing preload $ 158.94 Pinion bearing inch/lb torque wrench preload tool. *Ball Type Handle on the Inch/pound Version Localizes Force for Better Accuracy. This collapsible space is generally used to get a more precise pressure on the bearing preload. CAUTION: If maximum tightening torque of 271 N•m (200 ft. I unbolted it before checking the preload with the torque wrench, but I'm kind of anal about stuff like that. Most torque wrenches are not accurate at the bottom 20%, which would be what you need for pinion preload. Turning the pinion gear nut crushes the spacer to obtain the specified preload. This portion can be increased by applying a low friction lubricant. Supposed to be much less on the "barnicle" bearings of the new axles. Too little preload will cause the carrier to move back and forth. How does pressure fit in this? Check the preload using a deflecting beam inch-pound torque wrench or pull … You can try to do without, and use a “calibrated-by-feel” cheater bar or impact wrench … Using INCH-lb. Example: For installations with commercial, modern torque wrenches, tightened in a uniform, uninterrupted fashion, with an estimated friction coefficient, a tightening factor α A = 1,6 to 2,0 must be applied. GEARS, INSTALL KITS, CARRIERS, SPIDER GEARS, Chrysler 7.25"/ 8.25"/ 9.25" Side Adjuster Tool, Toyota 8" Clamshell IFS Front/FJ Cruiser/05+ Tacoma/4Runner, Dana 44 Reverse Rotation (D44 High Pinion), Differential Armor, Bumpers, Rock Sliders, Winch Mounts. 566 Airport Rd Louisburg, NC 27549. function ec3ab014de0e548eeb78() { return WSM.Util.rot13('phfgbzrefreivpr!rnfgpbnfgtrnefhccyl.pbz').replace('! 2.5 inch lbs seems impossible. Ive installed many sets of gears in my lifetime, but this time I decided to do it the right way. For example, underhead torque represents 50% of the input torque and thread torque is 40%. SKU: TOOL-TW-ILBS. When setting the pinion bearing preload on a crush sleeve design differential, it is always necessary to use a new crush sleeve every time the pinion nut is removed, or if the sleeve is over-crushed. automotive; 0 Answers. Remove rear wheels and brake drums to prevent any drag that may affect pinion bearing preload reading. Pinion pre-load is lost gradually over the life of the differential as the bearings and or race wears with use. *Pointer Moves Clockwise or Counterclockwise (+/-4%) to Measure Torque … It is important preload is within spec. Pinion bearing preload is measured in inch-pounds and is a measure of the rolling resistance of the pinion bearings after proper torque has been applied to the pinion … Torque: New bearing 1.1 to 1.7 N*m (11 to 17 kgf*cm, 9.6 to 14.8 in. FYI Pinion preload is measured after the pinion … Pinion Preload is verified by rotating the pinion with an inch lb. To measure and adjust drive pinion preload, follow the … *lbf) Reused bearing 0.6 to 0.9 N*m (6 to 9 kgf*cm, 5.2 to 7.8 in. $58.89. Pinion Preload is verified by rotating the pinion with an inch lb. Using lubricant reduces friction and decreases the necessary torque to reach the same preload. Foot-pound torque wrench - you need one capable of reading at least 250 ft-lbs for torquing the pinion nut, which affects pinion-bearing preload. *Satin Finish Scale Reduces Glare for Easier Reading. I don't want to spend north of $100 right now to get one, and I don't want to wait on one to be shipped to me, so I am in search of: ... and bearing pullers. When I read about setting the preload on the pinion gear, what I envision is that I'm supposed to tighten the pinion nut by hand (aka, a breaker bar), then once there is no front to back "play" on the pinion gear, start checking the preload with the in/lb torque wrench. Remember that there are different preload values for new bearings vs. used bearings. When a solid spacer and pinion nut are used, shims control pinion bearing preload. Once the companion flange feels snug, turn the pinion nut in 1/8 inch increments, and then with each turn, check the turning tension with an inch-pound torque wrench. The problem i see hear is that the 20% range of a 150in/lb wrench … Never loosen pinion gear nut to decrease pinion gear bearing rotating torque and never exceed specified preload torque. Pinion pre-load is the force (pressure) between the pinion bearings (blue) and the pinion bearing's race (yellow). to set bearing preload you need the dial or needle type torque wrench. Anyone have a tip on how to measure this torque? 6602 Differential Bearing Preload Wrench for Chrysler/Dodge Vehicles Rear axles. Well, there’s a collapsible spacer between the premises of the pinion bearing, which is capable of taking a specified amount of pressure. Mon-Fri 8AM to 6PM EST, Address: Pinion bearings will fail quickly if over-preloaded. On assembling the differential pinion after changing oil seals, green book says pinion shaft rotation resistance should be between 6.9 to 28.7 kgf. Backlash – Is the free-play between the ring & pinion. I don't have a dial-type torque wrench. Use an inch-pound torque wrench to check the preload. Bearing Set-up Kits; 0 … All Rights Reserved. Matco dial torque wrenches offer precise torque application in an easy-to-use durable design Range from 0-150 in/lbs and 0-175 cm/kgs Part#: TWBDI150A now from what i read most specs for preload are between 15-30 in/lbs of torque depending on bearing age and axle. This reading is known as the turning torque. My bet is that's what's led to the failure of both the head and tail bearings at this point. All radial ball bearings that require a preload must be loaded axially. The best tool for checking pinion bearing preload, on any axle, is a dial-indicating torque wrench … Generally speaking to much preload will overheat and destroy the bearings. West Coast notes that carrier bearing preload … It is important preload is within spec. Bearing types Ball bearings. Using an inch-pound torque wrench, measure the rotational torque of the differential ring and pinion gear plus their related components. I don't have a dial-type torque wrench. Are you sure your wrench is accurate and in inch lbs not foot lbs. By pressure, it means preload. is reached before torque to rotate is achieved, the collapsible spacer may have been damaged. Scatter and its effects Inch-Lb Torque Wrench, NO RETURN (For setting pinion bearing preload) Pinion Bearing Inch lb Torque Wrench Preload Tool Price: $74.00 Nitro Dial Indicator & Magnetic Base, For checking … Discard the nut. I am … To set pinion bearing preload, use a holding tool to keep the pinion gear stationary. To little and bearings … Use an inch-pound torque wrench to check the preload. torque wrench. It takes considerable torque to turn the pinion nut, and it can be tricky towards the end. Proper pinion bearing preload is achieved when the torque required to rotate the pinion is 5-15 in/lbs for used bearings or 25-35 in/lbs for new bearings. is correct according to some aftermarket gear Mfg. This is pinion bearing preload. Free shipping . Pretty much useless for anything else, but you save yourself a $G-note by doing the work yourself. According to the Dana literature 20-40 in.lb. Good quality for the price. lbs.) 6602 Differential Deflecting Bearing Preload Wrench Compatible with Chrysler/Dodge Vehicles with 7-1/4, 8-1/4, 8-3/4, and 9-1/4 Rear Axles, Replacement for Miller C-4164 5.0 out of 5 stars 2 … You can adjust or set the pinion bearing preload by turning the pinion nut to tighten or shorten the spacer. The only other 'special' tools you absolutely need is a 0-60 inch/lbs dial or beam type torque wrench to check the critical pinion bearing preload, and a dial … A collapsible spacer is used to obtain the specified amount of pressure or preload. The nut is there to keep a preload on the pinion bearings, that is why you use … (see table at page F.046). In order to check the preload, install an inch-pound torque wrench on the pinion nut and measure the preload … With new bearings the preload should be 22-32in/lbs for a 9" (and 17-32in/lbs for an 8".) 6602 Differential Deflecting Bearing Preload Wrench fit for Chrysler/Dodge Vehicles Axle Tube Quick Delivery Equipment Hand Tools. torque wrench, measure amount of force required to rotate pinion. cm and to alter bearing pre-load shim as required. Turning the nuts in a pinion gear, it crushes the spacer … I use it for checking drag when setting pinion bearing preload and and other low-torque applications. If the preload is too tight then remove the pinion gear and add shims so that the bearings will not be as tight against the races. When installing the carrier, the same adjusters or shims that are used to adjust the backlash are also used to set the carrier bearing preload. I'm test fitting w/ shims and the Old crush spacer ( .433" long) and snugging the pinion nut then checking preload w/ a Kgf/Cm beam torque wrench ( converting to lbf/in) Just so I get the feel and have a starting point to mill the longer spacer to. is reached before torque to rotate is achieved, the … Pinion preload is used to determine the amount of spacer needed for adequate bearing rotation/lubrication and it is measured with an inch pound torque wrench. ... Allstar Performance ALL68372 Pinion Yoke Wrench. With the .433" spacer + .021" shim I had Zero play and zero preload. A collapsible spacer is used to obtain the specified amount of pressure or preload. lbs.) Here's my concern. Next install the differential carrier, this is the part that the ring gear is bolted to. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD (a) Using a torque wrench, measure the preload of the drive pinon. ','@'); } document.getElementById('ec3ab014de0e548eeb78').appendChild(document.createTextNode(ec3ab014de0e548eeb78())); Copyright © 2021 East Coast Gear Supply. Just remember what Tim posted about going slow. It says pinion bearing preload is normaly between 15 and 30 lbs-in with new bearings and 10-15 lbs-in for bearings that have been in service . Tighten the nut until the pinion end play is just taken up. In my opinion crush sleeves shuold not be reused unless you absolutely have to. 9. FYI Pinion preload is measured after the pinion is rotating and without the axles or differential installed. When setting the pinion bearing preload on a crush sleeve design differential, it is always necessary … Setting the Pinion Bearing Preload Minus a Torque Wrench. $41.97. Once the pinion has been seated, recheck the pinion preload with your inch-pound torque wrench. It doesn't sound like you checked/set the pinion bearing preload when you replaced the old tail bearing? 2.5 ft lbs is 30 inch lbs. I always set pinion preload by "feel", Im doing an 8.8 now and I decided to buy a good inch pound torque wrench. Knowledge of that ratio allows the calculation of carrier bearing preload after measuring pinion bearing preload and the combined pinion and carrier bearing preload. My best guess is that I use an inch-pound bar-style torque wrench to measure the drag/torque required to rotate the pinion … asked Nov 7, 2018 in Trades & Technology by Chillbill. To reduce variation when mounting tapered roller bearings, the shaft should be turned several times to ensure that the rollers are in … So in doing this, I only have the test bearings on the pinion right now and no crush sleeve and am setting the preload. *Beam Style for Setting Pinion Preload. No return. *Wrenches Directly Measure a Variety of Torque Values When Tightening Fasteners. The pinion preload will be zero until the bearings contact the races but will then increase very quickly. Bearing manufacturers provide tables or calculators indicating the proper shoulder dimensions and tolerances for each bearing type and size. I have several much more expensive click-type inch pound torque wrenches that are excellent for torquing fasteners accurately, but you'll need a beam type like this to read torque in a rotating assembly. Pinion bearing preload is the tension placed on the pinion gear's tapered bearings. It acts as a spring to counter this motion. That way, you can get a nice smooth pull on the torque wrench when you're checking preload. Insufficient carrier bearing preload allows the carrier to move when under load; this can cause the backlash to open up. inch-pound torque wrench to check the preload. I don't want to spend north of $100 right now to get one, and I don't want to wait on one to be shipped to me, so I am in search of: ... and bearing … If you are installing used pinion bearings 10-15 in. Once the correct pinion depth is established, the pinion bearing preload can be adjusted. Some heavy-duty and more demanding differentials have a solid spacer instead. If it has the … Record pinion bearing preload for reassembly reference. With the preload set, I reinstalled the carrier. torque wrench. 919-672-2705, Customer Service: Depending on the bearing type, the preload is applied either radially or axially. Using the J 8614-01 or the J-34826 socket, remove and the pinion nut and washer. being that preload is critical for bearing life spend the money on a good wrench. If the pinion bearing preload … *0-80 Inch Pounds. Torque Wrench Options for Setting Pinion Nut Preload on AMC 20 10-29-2014, 11:14 AM. If you are installing used pinion bearings 10-15 in. Insufficient carrier bearing preload allows the carrier to move when under load; this can cause the backlash to open up. As the pinion nut is tightened it forces the yoke against a "crush sleeve" (red) that … ... a hand sledge, and an inch-pound torque wrench. When adjusting preload in a bearing system, it is important that the established preload value is attained with the least possible variation. Pinion bearing preload is the tension placed on the pinion gear's tapered bearings. I believe this means to tighten pinion nut til correct preload is reached indicated by torque required to turn the pinion, which you measured prior to disassembling. You may be wondering what does pinion bearing preload means. This spacer is placed between the bearings. Lastly if the pinion nut torque required to reach correct preload is less than 180Nm then the crush sleeve should be replaced. The pinion nut is torqued to a specific value found in the service manual. Remove pinion nut and washer. This preload prevents the sideways thrust that moves the pinion gear … Technical Notes: This is a 1/4" drive wrench 2 in stock This type of spacer must be the appropriate size to obtain proper preload.eval(ez_write_tag([[300,250],'freeasestudyguides_com-medrectangle-4','ezslot_0',116,'0','0'])); The collapsible spacer cannot be overtightened, and then backed off. Pinion bearing preload positions the bearings such that the pinion gear is held firmly in place, but still allows smooth rotation of the gear. shipping: + $7.90 shipping . 3. is the new bearing preload, and they do not list any specs for used bearings. To check the preload, I had to use several adapters to get from the ¼ inch drive of my torque wrench to the ½ inch drive of the socket. Nut Wrench, Differential Side Bearing J-24429 Tool Number: J-24429 Tool Name: Nut Wrench, Differential Side Bearing Applications: 10 1/2in DANA Ring gear position and pre-load are critical for optimum performance and durability. This wear can cause enough pre-load to be lost that the pinion will actually move when torque is applied or removed to the pinion via the driveshaft under engine acceleration or deceleration. Every tool box should have a good selection of torque wrenches. A) 1722 Foot-Pounds B) 1722 Inch-Pounds C) 120150 Foot-Pounds D) 5075 Inch-Pounds. Once the ring gear is positioned correctly in relation to the pinion, the preload must be set. If the preload is too loose then remove shims so that the bearings will be tighter against the races and increase the preload. With used bearings either type should be only 8 … The pinion preload will be zero until the bearings contact the races but will then increase very quickly. According to the Dana literature 20-40 in.lb. Pinion bearing preload positions the bearings such that the pinion gear is held firmly in place, but still allows smooth rotation of the gear. Note on a "typical" D44 pinion bearing preload is 14-19 on new bearings and 6-9 for used. The slack would leave the pinion bearings with little or no preload. Using Holder (6719), hold pinion flange. is the new bearing preload, and they do not list any specs for used bearings. Sales & Support: Hence, the torque tightening process is not very efficient. ... Neiko 03727A 1/4-Inch Drive Beam Style Torque Wrench | 0-80 in/lb 9 Nm. This preload prevents the sideways thrust that moves the pinion gear to the outside edge of the ring gear. 2. What is a typical pinion bearing preload, when measured with a torque wrench on the pinion nut? $18.47. is correct according to some aftermarket gear Mfg. 6602 Differential Bearing Preload Wrench … Bearing preload for used bearings should be 10-20 in lbs for the pinion … *lbf) If the preload is greater than the specification, replace the bearing … This spacer is placed between the bearings. Carrier bearing preload is confirmed as gear rotational resistance, measured with a torque wrench on the pinion flange nut. Once pinion depth is achieved install new seal, loctite pinion nut, and using a new crush collar set pinion bearing preload to 15 inch-pounds rotating torque used bearing, and 25 inch-pounds with new bearings. That fact represents the torque multiplication for that particular gear set. lb. Backlash – Is the free-play between the ring & pinion. Too much bearing preload will kill the bearings almost instantly. Turning the pinion gear nut crushes the spacer to obtain the specified preload. I have like 7 … Specifications vary by the manufacturer from 15-inch pounds to 30-inch pounds. Failure to follow these instruction may result in damage. Use an inch-pound torque wrench to check the preload. Miller 9992 Dummy Bearings Backlash and Preload Rubicon Jeeps 216FBI 226RBI Axle. See the reference section for details … You can tighten the nut in fairly big chunks until you get most of the play out of the pinion gear, but when you start getting close to zero play on the bearings, SLOW DOWN. For more information about ASE, visit the official ASE website at www.ase.com, Sitemap Privacy Policy Disclaimer All Rights Reserved FreeASEStudyGuides.com ©Copyright 2008-2021. At right is the improvised tool that can perform the … The correct formula to calculate only the carrier bearing preload is as follows: Carrier Bearing Preload = (total preload - pinion bearing preload) x the differential ratio. The pinion nut should be torqued to 8-14 in-lbs. Make sure to put some loctite on the threads! lb. Torque Wrench Options for Setting Pinion Nut Preload on AMC 20 10-29-2014, 11:14 AM. In my 3.73 ratio case, when the pinion gear is rotated 3.73 times, the ring gear rotates 1.00 time. If the pinion bearing preload exceeds the specified allowable range, install another new crush sleeve and start over! Be careful; once minimum torque specification is reached, it's not much more before the maximum specification is reached. Working on rebuilding the 8 1/4 rear axle in my brother's Duster. Pinion bearings will fail quickly if over-preloaded. The FSM talks about measuring and setting the pinion bearing preload but does not discuss exactly what this is or how to measure it.