1. Trailer Leaf Spring Suspension
  2. Universal Group
  3. Leaf Springs
  4. Springs
  5. Slipper Springs - 2-1/2 Inch
  6. 30-1/2 Inch Long
5-Leaf Slipper Spring w/ Radius End for 10,000-lb Trailer Axles - 30-1/2" Long

5-Leaf Slipper Spring w/ Radius End for 10,000-lb Trailer Axles - 30-1/2" Long

Item # SP-297275
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Our Price: $86.63
Trailer Leaf Spring Suspension
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Shipping Weight: 32 lbs
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Trailer Leaf Spring Suspension SP-297275 - Leaf Springs - Universal Group
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Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 10,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 7/8" inner diameter. Lowest Prices for the best trailer leaf spring suspension from Universal Group. 5-Leaf Slipper Spring w/ Radius End for 10,000-lb Trailer Axles - 30-1/2" Long part number SP-297275 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (4)
  • Q & A (4)
  • Videos (1)
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Universal Group Trailer Leaf Spring Suspension - SP-297275

  • Leaf Springs
  • Springs
  • Slipper Springs - 2-1/2 Inch
  • 30-1/2 Inch Long
  • 10000 lbs
  • Universal Group

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 10,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 7/8" inner diameter.


Features:

  • Leaf spring acts as part of your trailer's suspension system
    • Provides attachment point for your trailer's axle
  • Multiple leaves allow flexibility to absorb road shock
    • Allows for a smooth ride
    • Reduces wear and tear on trailer
    • Ensures level ride on bumpy and uneven surfaces
  • Sturdy steel construction
  • Bronze bushing included
  • Pre-mounted hangers or aftermarket hanger kit (sold separately) required for installation
    • Eye of spring attaches to hanger mounted on trailer frame
    • Slipper end slides into hanger or equalizer


Specs:

  • Quantity: 1 leaf spring
  • Spring capacity: 5,000 lbs
  • Axle capacity: 10,000 lbs
  • Length from center of spring eye to end of spring: 30-1/2"
  • Spring width: 2-1/2"
  • Eye diameter with bushing: 7/8"
    • Eye diameter without bushing: 1-1/8"
  • Leaf thickness: 7/16"
  • Number of leaves: 5
  • Additional dimensions: see table


Radius End Slipper Spring

Part NumberABCDEF
SP-29727513-5/8"26-7/8"30-1/2"13-1/2"17-3/4"3-7/8"


Note: To ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs.


Leaf springs are an integral part of your trailer suspension system. The leaf springs provide the attachment points for your trailer's axle, suspending it from the frame of your trailer. Each spring flexes to absorb road shock as you travel, allowing the axle to move somewhat independently of the rest of your trailer. This helps to reduce wear and tear on the trailer and also ensures a smooth ride.


Slipper leaf springs attach to hangers that are welded onto your trailer. The eye of this spring will attach to the front hanger with a suspension bolt. The flat slipper end of the spring will slide into the rear hanger. If you have a tandem- or triple-axle trailer, the slipper end will slide into the equalizer that connects multiple springs. The shape of the slipper end of a leaf spring may vary slightly due to differences among trailer manufacturers. Because of this, it's important to check your leaf spring's slipper end before purchasing a replacement spring.


To mount this spring, you will need hangers, a suspension bolt, and possibly a spring keeper bolt, depending on the design of the rear hanger. If you are simply replacing a spring, you may still have hangers welded onto your trailer, but it would be wise to replace the bolts as they can experience wear. It is also recommended that you replace the other leaf spring in your setup at the same time. Because springs can sag and elongate as they wear, this new spring may not exactly match the old one, and the alignment of your trailer could be affected.


If you are fabricating a trailer, you will need to purchase a hanger kit for installation. To determine the type of hanger kit that you need, you must know the specific type of leaf spring that you have, as well as your axle capacity. Depending on the hanger kits used with them, springs can be configured to work for single-, tandem- or triple-axle applications. Hangers and other suspension components can also be purchased separately if there isn't a complete kit that works for your setup.



UNA-297 Universal Group Slipper Trailer Leaf Spring - 5 Leaf - 5,000-lb Capacity

Replaces 72-77





Video of 5-Leaf Slipper Spring w/ Radius End for 10,000-lb Trailer Axles - 30-1/2" Long

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Universal Group Trailer Suspension - Leaf Spring Suspension - SP-297275 Review

Today we're going to take a look at the 5 leaf slipper spring for 10 thousand pound trailer axles. Now this is a strong, durable, steel construction. This spring is designed to flex to absorb road shock and provide a nice, smooth ride. It does help reduce wear and tear on your trailer. It'll help insure a level ride on dumpy and uneven surfaces. It does mount to the trailer with hangers or a hanger kit, which we do sale separately on our web site and lots of times they are listed on this product page as a related product. If you notice on the eye end, it includes this bronze bushing already installed in there.

A few specs on this spring; the spring capacity is 5 thousand pounds, so when this is used with one on the other side it will meet your axle capacity of 10 thousand pounds. Again this is for 5 leaves. You can see 1, 2, 3, 4, 5. The spring length, which is measured from the center of the eye here to the very end; get our measuring tape and we'll go from center to the very end, is going to be 30 1/2 inches for spring length. The spring width, let me just rotate this, and the width on that is going to be right at 2 1/2 inches.

Now the eye diameter, which is the inside diameter of the hole right here, is 7/8 of an inch. This part is for a quantity of 1 spring. One last note on this spring that I want to mention is that to insure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs. That should do it for the review on the 5 leaf slipper spring for 10 thousand pound trailer axles.


Customer Reviews

5-Leaf Slipper Spring w/ Radius End for 10,000-lb Trailer Axles - 30-1/2" Long - SP-297275

Average Customer Rating:  4.8 out of 5 stars   (4 Customer Reviews)

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 10,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 7/8" inner diameter.

- SP-297275
by:

Great Quality Item, Super Fast Shipping Thank You



- SP-297275
by:



- SP-297275
by:

Only one that had the part I needed in stock and beat the prices of others by a lot. Also great shipping got it a week earlier than expected and sure helps when you rely on your equipment to be up and running



- SP-297275
by:

receved product Its what I ordered and looks to be good quality at a fair price


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Ask the Experts about this Universal Group Trailer Leaf Spring Suspension

  • Can a Larger Axle be Put on a 6x12 Single Axle Trailer
    Yes, you can get a different axle for a trailer. However, you will also need to upgrade the suspension and the tires and wheels. Also, the trailer frame may need additional support. Basically, if you want a 5,000 pound capacity trailer all of the components on the trailer will have to be rated for at least 5,000 pounds. We do not sell axles (except to our local customers only) but I can tell you what you will need to measure to order a new axle from a local place near you. First, measure...
    view full answer...
  • Installation Kit for the 5,000lb Trailer Slipper Spring SP-297275 on a Tandem Axle Trailer
    The Trailer Leaf Slipper Spring 5,000 lbs. 5 Leaf, 7/8 inch Eye, item # SP-297275, is a slipper style spring. Double eye springs would have an eye on each end of the spring. To build a double axle trailer with these springs you will need one of two tandem axle hanger kits, depending on the spacing you need between the axles for the wheel and tire combination you plan on using. The Tandem Axle Hanger Kit, # HAP-158-258-02, will give you 42-1/4 inches on center between the axles and the...
    view full answer...
  • Replacement Slipper Springs Measurements and Different Ends
    I have included a picture below as measurements for slipper leaf springs are different than double eye leaf springs. A=Eye center to Spring Pin length B=Eye center to end of spring C=Eye center to spring pin center following spring D=Spring pin center to tail of spring following spring E=Spring Height from eye center to axle mount. You will also want to verify your weight rating, spring width and if it has a radius end, flat end or hook end. Our only 2-1/2" spring currently...
    view full answer...
    Image 1 for
  • Slipper Leaf Springs and Hanger Kit for a Heavy Equipment Trailer
    If the springs have broken before then they may be inadequate for your needs. It sounds like you have four 4,500 pound axles (18,000 pounds divided by 2 tandem axle set ups (4 axles)) or two 9,000 pound axles. Going to suspension for a 10K axle if you have 4 axles would be a huge leap and the ride would be very, very stiff. Since the slipper springs rated under 10K are also shorter you would need a new hanger systems as well if you wanted to go to different springs. We will have a set...
    view full answer...

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Alexander C
Written by:
Alexander C
Employee Jenny M
Updated by:
Jenny M

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