Expert Answers about Trailer Spindles

• Process for Changing a Damaged Spindle on a Trailer Axle
• Replacement of a spindle on a trailer axle is best left to a professional installer. This is not a do-it-yourself type of project. We urge you to use a professional welder experienced in axle fabrication. Proper alignment and welding are critical to safe operation of the trailer. Depending on the condition of the axle you may be better served by replacing the entire axle/spindle assembly. Although the axle adds to the parts cost, you will save on the labor side. A new axle with spindles will be
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• Availability of 1 Inch Diameter Trailer Spindle To Fit on 1.25 Square Axle
• The two spindles that I have to fit a square axle are designed with a square stub diameter of 1.50 inches. The Redline Spindle, part # SP204BT8, you have referenced is for 2,000-lb axles and the Redline Spindle, part # SP20484, is for 3,500-lb axles. They use different bearings and seals. I am including a link to a product page that will list the dimensions on the trailer spindles we have available. Square axles can be tough to determine capacity. Often times the same spindle fits a range
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• Determining the Capacity of a Square Trailer Axle
• Square axles can be tough to determine capacity. Often times the same spindle fits a range of axle capacities. The best way to determine the capacity is to get the inner and outer bearing numbers stamped into the metal of the bearings. Going by those numbers, wheel size, and bolt pattern, we can determine the probable axle capacity. I have included some links that might help. There could also be a plate on the axle itself that lists the capacity. The most common place to find axle capacity is
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• How to Determine the Correct Replacement Hubs for a Tracker Marine Boat Trailer
• What you are going to have to do is pull off one of the hubs, something you will have to do eventually any way, and get the inner and outer bearing numbers. The numbers are stamped into the metal of the bearings. With these numbers I can tell you exactly what you need as replacements. The wheel size and bolt pattern of the wheel will also help. I have included a link to a video that will help.
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• Is there Any Way to Determine the Trailer Bearing Measurements without Pulling the Hub
• The short answer is that you cannot. You will need to pull the hub and get the numbers stamped into the bearings to find the correct replacements. It is possible that if you know the spindle part number and/or dimensions that you will be able to determine the seals that way. I also may be able to figure it out if I had the bolt pattern of the wheel, see link, and the axle capacity. The best way is to pull the hub. I have included a link to a video that might help. If you are going to replace
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• Spindle Measurement of Part # SP20484
• The F measurement is the length of the square portion of the spindle stub, which can either slide into the end of the axle and be plug welded in place or more commonly welded to the bottom of the axle tube. As long as the spindle is going on a 3500 lb axle and the rest of the dimensions match (B, C, D and E), it is not so important that the F dimension match perfectly, just as long as it is not dramatically shorter than the spindle it replaces.
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• What is the Overall Length of the Trailer Spindle # R2061-284
• I went out to the warehouse and pulled a Spindle, # R2061-284, to measure the overall length (OVAL). From end to end the spindle measures 11-1/4 inches. All other important measurements can be found on the product page. I have included a picture that shows the length measurement.
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• Determining Replacement Hubs for EZ Lube Spindles
• EZ Lube spindles are compatible with all idler hub and brake hub and drum assemblies, and the only difference is the seal and grease cap. To determine the correct replacement hub for your trailer, you will need to pull off your existing hubs to determine the bearing numbers. The difference between the EZ lube hub and drums and the non EZ lube hub and drums is the grease cap and seal. The EZ lube ones like the # 84546UC3-EZ have a removable rubber seal on the cap that allows you to access the
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• How to Determine the Correct Replacement Hubs for a Trailer with a 3,500 Pound Axle
• There are a couple of things you can look at to determine the correct replacement hubs. The best way is to retrieve the inner and outer bearing numbers that are stamped into the bearings. I suspect that you will have the Trailer Hub Assembly, # 84545UC1-EZ, which uses L68149 Inner/L44649 Outer bearings and E-Z lube axles. Or, for a hub and drum, # 84546UC3-EZ, which is the same but has the hub and drum for drum brakes. But, the best way to know is to check your bearing numbers. The other t
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• Availability of Bearings, Seals, and Cap For 2002 Trailstar Trailer
• The best way to determine the correct parts for your 2002 Trailstar trailer is to disassemble a hub on one side of the trailer and get the bearing part numbers that are stamped on the bearings. There is an inner and outer bearing. With these part numbers I will be able to determine the bearings, seals, and other parts you might need for your trailer. I looked up the Trailstar trailers and it looks like they use the EZ Lube hubs. The EZ Lube system will have a zerk fitting on the end of the s
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• What is the Overall Length of the Redline Agricultural Spindle # AS1500E
• I pulled an Agricultural Spindle # AS1500E that you referenced and measured the length of it and found it to be right at 10 inches long. I also grabbed bearings # LM67048 and # LM11949, slid them on the axle and measured the distance between the inner bearing and outer bearing from center to center and found that it is 2.33 inches. Check out the video I put together for you that shows this measurement.
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• What Is Overall Length and Measurements of Spindle # R104BT8
• I contacted our representative at Redline about the Spindle # R104BT8. He informed me that the overall length measures 8-3/4 inches. Section A measured 4 inches long. Section B and C together, measured approximately 5/8 inches or .625 inches. Section D measured approximately 3-1/4 inches or 3.25 inches. You will want to use a dial caliper to get the most accurate measurement of your spindle. The Spindle # R104BT8 will fit hubs with 1 inch bearings. The new spindle must be installed with pr
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• Distance From Side wall to Spindle End with Tire/Wheel # AM30020, Hub # 3482254BX, Spindle BT8
• I went out to the warehouse and pulled all of the parts: Kenda 4.80/4.00-8 Bias Trailer Tire and Wheel, # AM30020. Trailer Hub, # 34822545BX And Spindle, # R104BT8-38 I assembled all of the parts and measured from the inside side wall of the tire to the end of the spindle. It measured 4-3/16 inches.
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• How to Determine Spindle Size for a 2004 Triton Elite WCII PWC Trailer
• There are two ways to determine what spindle you have on your 2004 Triton Elite WCII Jet-Ski trailer. The first way is to look at the number that is stamped on the bearings that you removed when you took the hub off. The second way is to use a dial caliper and get the measurements and find the spindle that matches those measurements. The new spindle must be absolutely square with the axle in order to prevent tire wear and wheel tracking problems. I would recommend finding a welder who i
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• Are Trailer Spindle # SP20484, Hub Assembly # 8-258BTUC1, and Tire/Wheel Combo # AM31985 Compatible
• The Redline Trailer Spindle, # SP20484, is compatible with Trailer Hub Assembly # 8-258BTUC1. The hub assembly is designed for use on a 12 to 15 inch wheel with a 5 on 4-1/2 bolt pattern. The tire and wheel combo you have selected, # AM31985, is a match. So you will be able to use all of these components together. The hub assembly comes with the bearings, races, cap, lug nuts, and seals.
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• Removing and Replacing Trailer Spindles
• To replace a spindle, the old one would need to be cut off, and the new one welded into place. This is NOT a job for the do-it-yourselfer. The new spindle must be absolutely square with the axle in order to prevent premature tire wear and wheel tracking problems. I would recommend finding a welder who is experienced with trailer axles. Your local RV dealer or repair facility could probably refer you.
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• Which Trailer Hub and Bearings Fit Spindle # R104BT8-38
• For spindle # R104BT8-38, you can use hub # 34822BX. This hub comes with the proper bearings # L44643 inner and outer. The Cap has an outer diameter of 1.986 outer diameter and Seal # 34823. The hub assembly is a 4 on 4 bolt pattern for 2,000 pound axles. You will want to make sure that the old bearings are stamped with L44643. If they have different numbers, let me know what they are and I can determine what the correct replacement hub is.
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• Spindle Recommendation for a Broken Zerk Fitting on a Spindle
• I spoke with my contact at Redline and he informed me that there is a replacement zerk fitting for your spindle but that it is not the same as one you would see on a tractor or anywhere else. It would be a special order item that we would need to order from our distributor. Or you could replace the spindle. If this EZ Lube Spindle 1.75 inch RD x 3 inch, part # R20384EZ, has the same dimensions as the spindle that is on your trailer now this would be a good replacement. You will want to
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• Which 5 Bolt Hub Assembly is Recommended for Use with the Redline Spindle # R104BT8
• On the Redline Spindle, part # R104BT8, the hub assembly you would need is an idler hub assembly. An idler hub assembly does not have an integrated brake drum. It will also depend on what size wheel and tire you will be using. If you need an idler hub assembly with a 5 bolt pattern you can use the Dexter hub # 34822545BX. This is a idler hub assembly with a 5 on 4-1/2 inch bolt pattern that will work on 2000lb axles. It will only work with 8 inch to 10 inch wheels. If you need an idler h
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• Assembly Order for Bearings, Races, and Seals for Trailer Hub # 34822BX
• The order of assembly is as follows (from the inside out). First, put the inner race in the back side of the hub, followed by the inner bearing, and then the seal. Insert the hub onto the spindle. Then, insert the outer race, followed by the outer bearing, then the washer, nut, and pin. The grease cap goes on last. It looks like you are putting the race in the wrong place. I have included a link to a video that will show you the process. Also, all the parts you have listed are compatible. It
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• Trailer Hub Spindle Recommendation for use with a # 34822UC1 Trailer Hub
• The Spindle 1.25 inch RD x 4 inch STUB, part # R104BT8, that you referenced we be the correct spindle for your trailer hub # 34822UC1.
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• Is The EZ Lube Spindle # R20384EZ Compatible With 10 Inch Brakes
• I contacted our representative at Redline about the EZ Lube Spindle 1.75" RD x 3" STUB, part # R20384EZ, and he confirmed that it will work for 10 Inch brakes. I would recommend having a trailer professional install part # R20384EZ, as it requires precision installation. The spindle will need to be welded square and concentric to the axles so the brake will fit and operate properly in the hub.
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• How Does The EZ Lube Spindle # R20384EZ Work On A Boat Trailer
• On the EZ Lube Spindle # R20384EZ you do not need a grease fitting for the hole on the inside end of the spindle. This is an EZ lube spindle which is designed to allow you to put grease onto the bearings by using the zerk fitting on the threaded end of the spindle. You will not want to block the hole that is on the inside end of the spindle. When the hub is installed on the EZ lube spindle it will form a cavity around the wheel bearings and when you pump grease into the spindle through the z
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• Which Spindle Do I Need To Use with 8 on 6-1/2 Drum and Hub Assembly part # 8-219-4UC3
• I cross referenced the bearings that Trailer Hub & Drum Assembly - 5,200, 6,000, 7,000 lbs. Axles - 8 on 6-1/2, PART # 8-219-4UC3, uses to determine which spindle you will need. The correct spindle you will need is EZ Lube Spindle 2.25 Inch RD x 3 Inch STUB, part # R50342EZ.
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• What Bearings Seals Brakes and Tires to Use for 4400 lb Axels on a 2004 Airstream 30 Feet Long
• I did a little research and found that the National Seal, 442109, has an inner diameter of 2.25 inches and an outer diameter of 3.376 inches. We carry two seals that can be used as a replacement for this seal. If your hubs have greased bearings you should use the TruRyde Grease Seal, item # 42385, if you have a E-Z lube spindle use the TruRyde Grease Seals, item # RG06-070 (pair), which is a double lip seal and if your hubs have oil bath bearings, use Oil seal # 10-63. Your inner bearing sh
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• Will Redline EZ Lube Spindle, # R50342EZ Fit The Dexter Trailer Hub Assembly, # 8-201-9UC3-EZ
• The Redline EZ Lube Spindle 2.25 Inch RD x 3 Inch STUB, # R50342EZ will fit the Dexter Trailer Hub Assembly - 5200 & 6000 lbs - 6 on 5-1/2 - EZ Lube, # 8-201-9UC3-EZ. The trailer hub assembly is a 6 on 5-1/2 inch bolt pattern and is rated at 3,000 lbs. per assembly, but because the spindle is rated at 2,600 lbs per spindle the spindle will limit the weight capacity on the axle to 5,200 lbs.
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• Does a Spindle with Scarring are Complete Bearing Failure Need to be Replaced
• What concerns me about this situation is the scarring on the spindle. Depending on how deep and how bad the scarring is, a new set of bearings and a new hub/drum assembly might experience the same problem down the road. This would mean that the spindle would need to be replaced also. Otherwise, you may have to frequently replace parts. It would be best in this situation to eliminate the possibility of future similar occurrences before they have a chance to cause damage. Any visible scarring or h
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• What are the Dimensions of Redline Trailer Spindle R104BT8-38
• I checked with my contact at Redneck, and spindle # R104BT8-38 has an overall length of 8-3/4 inches.
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• How to Remove a Hub from a Ram Line Jet Boat Trailer with Damaged Bearings.
• Unfortunately, it sounds as if when your bearings went out you were towing the trailer and the inside of the bearing that contacts the spindle, bearing cup, got hot and galled itself to the spindle on the trailer. This happens many times when bearings fail and can require replacement of the whole axle in the most extreme cases. I would try to remove the bearing cup by prying with a pry bar or screw driver and lubricating the spindle. If that doesn't work try more aggressive techniques. If any
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• Complete Spindle Length Dimensions by Section for the # R50642 2500 Pound Spindle
• For the Spindle 2.25 inch RD x 6 inch STUB, item # R50642, the width of the B or seal surface area of the spindle is .550 inches, and the width of the C or inner bearing surface of the spindle is 1.00 inches. The width of D or the outer bearing surface is 1.075 inches and the distance between the inner and outer bearing surfaces is 1.350 inches. The width of the threaded portion is .780 inches and the overall length of the spindle is 10-7/8 inches. These dimensions are usually not needed. To
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• What Are Dimensions And Bolt Hole Spacing On Brake Flange On Redline EZ Lube Spindle, # R50342EZ,
• The picture on Redline EZ Lube Spindle 2.25 inch RD x 3 inch STUB, # R50342EZ, is a typical photo. Which means it might not be a picture of that exact part. I went out in our warehouse and pulled the actual part and took measurements. See the included picture that will show the measurements. The brake flange on the spindle is a square plate with rounded corners and has 5 bolts attached to the flange. If you set the spindle down on the flat edge of the brake flange that will allow the top bolt
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• Availability Of 5-5 1/2 Inch Hub Assembly, Spindle, Bearings Rated For 1,750 lbs. Each
• I have the Dexter Trailer Hub Assembly - 3,500 lbs Axles - 5 on 5-1/2, # 84555UC1, which is rated at 1,750 lbs. each. The bearings, races, cap and seal included. The only other option I would have is the Dexter Trailer Hub & Drum Assembly - 3,500 lbs. Axles - 5 on 5-1/2, # 84557UC3, if you were wanting brakes. The capacity is 1,750 lbs. and comes with a 10 inch X 2-1/4 inch drum. It also comes with bearings, races, cap and seal. The spindles that are available for both hub assemblies with
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• Welding Redline Spindles # R40484 and # R50642 for Utility Trailer with 2-3/8 inch O.D. Pipe
• You have a 2-3/8 inch O.D. pipe so you might want to look at Redline Spindle 2 inch x 4 inch Round Stub, # R40484, which has a 2 inch O.D. at the weld point and has a 1750 lb. capacity, so two spindles will give that axle 3500 lb capacity or Redline Spindle 2-1/4 inch RD x 6 inch STUB, # R50642, which has a 2.25 inch O.D. at the weld point and has a 2500 lb. capacity for a total capacity of 5000 lbs. The total capacities of the spindles are only valid if installed correctly and the axles are not
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• Replacement Hub Needed for Redline Trailer Spindle # R40484
• You are correct, the Trailer Hub Assembly - 3,500 lbs Axles - 5 on 4-1/2, item # 84545BX, is compatible with the Redline Trailer Spindle, item # R40484. The Trailer Hub Assembly - 3,500 lbs Axles - 5 on 4-1/2 comes with innner and outer bearings, grease seal, lug nuts and grease cap for a complete replacement package.
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• Which Hubs Fit the # R50342EZ Spindle
• If you need a 6 lug on 5.5 inch bolt pattern then you will need the following hubs. 8-213-5UC1-EZ 6 on 5.5 Idler Hub Bearings 25880 inner and 15123 outer 8-201-9UC3-EZ 6 on 5.5 Hub and Drum Bearings 25880 inner and 15123 outer If you need a 8 lug on 6.5 inch bolt pattern then you will need the following hubs. 8-231-9UC1-EZ 8 on 6.5 Idler Hub Bearings 25880 inner and 14125A outer 8-219-4UC3-EZ 8 on 6.5 Hub and Drum Bearings 25880 inner and 14125A outer Keep in mind that when
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• How to Determine Hub and Spindle Size
• The spindle dimensions are as follows: A is the mounting dimension, B is the seal dimension, C is the inner bearing surface, D is the outer bearing surface and E is the diameter of the threaded portion of the spindle for spindle nut selection. Say you need a spindle and hub for a wheel with 5 on 4-1/2 inch bolt pattern and an axle that is 3500 lbs. For a single axle trailer you can use two of either the item # R20484, if your axle is round or item # SP20484 if your axle is square. Then you
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• What are the Length Dimensions of the Steps on Spindle Part # R20484
• I pulled one of these from the ware house and used a set of calipers to measure the portions you asked about. The total length of the spindle, part # R20484, is 8-3/4 inches. I used the labels assigned to the steps on the spindle on the product page. Section B is .61 inches, section C is .80 inches, the section between C and D is 1.30 inches, and section D is 1.00 inch in length and the threads are .93 inches long. Listed in the chart are the diameter sizes.
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• Which Hub Do I Need for the R50642 Spindle.
• The hub you will need for the Spindle 2.25 inch RD x 6 inch STUB, item # R50642, is the Trailer Hub Assembly - 5,200 & 6,000 lbs Axles - 6 on 5-1/2, item # 42655UC1.
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• Spindle Replacement on 2006 Fleetwood Prowler Camper
• Replacing the spindle on your axle will require cutting the old spindle off and welding a new spindle (see link) in its place. You would need to find a certified welder so that he has the proper tools and welding equipment to make the repair. To figure out which spindle is correct for your trailer you can use the bearing part numbers, both inner and outer, axle weight capacity and the shape and length of the spindle stub on your trailer. The bearing numbers will let you cross reference the corre
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• What Size Spindle is Needed for a M/H trailer
• The axle spindle you need to order will depend on the weight capacity of your trailer and on the type of spindle (see link) already being used, if you only need to replace one spindle. To figure out which spindle is correct you can use the bearing part numbers, both inner and outer, and the shape and length of the spindle stub on your trailer. The bearing numbers will let you cross reference the correct spindle measurements for your hub. The axle stub shape and length will allow you to use th
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• Overall Length of the EZ Lube Spindle 1.75 RD x 3 STUB
• The length of the EZ Lube Spindle 1.75 inch RD x 3 inch STUB, item # R20384EZ, is 10-1/4 inches overall.
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• Replacing a Spindle on an Enclosed Trailer Axle
• When replacing the spindle on your trailer with a EZ Lube Spindle 1.75 inch RD x 3 inch STUB, part # R20384EZ, you will need to cut off the existing spindle and weld a new one in place. I would strongly recommend you take it to a qualified machine shop to have the appropriate welds done.
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