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  1. Trailer Leaf Springs
  2. Universal Group
  3. Slipper Springs
  4. 3 Inch
  5. 30-1/2 Inch Long
  6. 15000 lbs
7-Leaf Slipper Spring w/ Radius End for 15,000-lb Trailer Axles - 30-1/2" Long

7-Leaf Slipper Spring w/ Radius End for 15,000-lb Trailer Axles - 30-1/2" Long

Item # SP-270275
Our Price: $226.94
Trailer Leaf Springs
This item qualifies for Free Shipping
Shipping Weight: 51 lbs
Quantity: 
In Stock
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Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 15,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 1" inner diameter. Great Prices for the best trailer leaf springs from Universal Group. 7-Leaf Slipper Spring w/ Radius End for 15,000-lb Trailer Axles - 30-1/2" Long part number SP-270275 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (14)
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Universal Group Trailer Leaf Springs - SP-270275

  • Slipper Springs
  • 3 Inch
  • 30-1/2 Inch Long
  • 15000 lbs
  • 7 Leaf
  • Radius End
  • Painted
  • Universal Group

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 15,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 1" 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
  • Rubber 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: 7,500 lbs
  • Axle capacity: 15,000 lbs
  • Length from center of spring eye to end of spring (unloaded): 30-1/2"
  • Spring width: 3"
  • Eye diameter with bushing: 1"
    • Eye diameter without bushing: 2"
  • Leaf thickness: 3/8"
  • Number of leaves: 7
  • Additional dimensions: see table


Radius End Slipper Spring

Part NumberABCDEF
SP-27027513-3/8"28-1/2"30-1/2"14-9/16"18-1/8"4"


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-270 Universal Group Slipper Trailer Leaf Spring - 7 Leaf - 7,500-lb Capacity

Replaces 72-45-1





Video of 7-Leaf Slipper Spring w/ Radius End for 15,000-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-270275 Review

Today we're gonna take a look at the 7 leaf slipper spring for the 15,000 pound trailer axles. Now, this spring is a strong, durable steel construction. It is designed to flex to absorb road shock, provide a nice smooth ride. Also reduces wear and tear on your trailer. Helps to enjoy a nice, level ride on bumpy and uneven surfaces, and it does mount to your trailer frame with hangers, or a hanger kit, which we do sell separately on our website. Lots of times, it is included as a related product on this product page. If you notice on the eye portion right here, it does include the rubber bushing.

A few specs on this: the spring capacity itself is 7,500 pounds, and when this is paired with 1 on the other side of the axle, it'll reach your axle capacity of 15,000 pounds. If you notice the number of leafs on this is 7. 1, 2, 3, 4, 5, 6, 7. I do want to give you some measurements. We're gonna start with the spring length.

The spring length is from the center of the eye to the end of the spring itself. So if we go from the center to the end, it's 30 and a half inches. The width on the spring is right at 3 inches wide. The eye diameter in the eye right here, the inside diameter is 1 inch. This part is for a quantity of 1 spring. Now, 1 last note on this, is to ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs.

That should do it for the review on the 7 leaf slipper spring for 15,000 pound trailer axles.

Customer Satisfaction Score:


Customer Reviews

7-Leaf Slipper Spring w/ Radius End for 15,000-lb Trailer Axles - 30-1/2" Long - SP-270275

Average Customer Rating:  4.9 out of 5 stars   (14 Customer Reviews)

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 15,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 1" inner diameter.

by:

Yes yall took care of the shipping company's blunder and resent the lost in transit parts thanks. Even boxes were stronger and yall put in individuL boxes, the boxes stayed fully intact and parts were secure. Good job




by:

Great prices and wonderful customer service, thank you!




by:

Great product. Thank you.




by:

Great products and fast shipping great staff I recommend etrailer to everyone keep up the good work!!!




by:

Fit good and was easy to order and shipped quickly




by:

It was delivered so on time
Packing
was really good
Thank you etrailer




by:

Springs fit perfectly putting the other one in now, i have no doubt that this one will work perfect.




by:

Exactly what I ordered. Extra quick shipping and also the best price I found. Very satisfied




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by:

Good product.. good fit.. I have used in the past




by:

I've ordered a few things from here had great luck




by:

shippment was on time thanksgot the order right .




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14
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See what our Experts say about this Universal Group Trailer Leaf Springs

  • Selecting Replacement Slipper Springs
    The linked page will display all slipper type leaf springs we offer. You will want to confirm your axle weight capacity as well as the spring width and length as you select replacements. You will also want to replace both springs on each axle to ensure the trailer tracks properly. We offer several slipper springs in a 30-1/2-inch length including the 5-leaf spring # SP-252275 for 10K axles and the 7-leaf # SP-270275 for 15K axles. You may care to refer to the linked article on trailer...
    view full answer...
  • Replacing 6-Leaf Springs on 12K Axles with 7-Leaf
    If the leaf springs are the same size and type then there will be no issues with replacement. The more leaves there is, the greater capacity the spring will have most likely. The 7-Leaf Slipper Spring w/ Radius End part # SP-270275 is a slipper spring measuring 30.5" long x 3" wide and it has a 15,000 lb capacity for the pair. In regards to u-bolts, they are typically a one type use only product so they will need to be replaced as well with the Replacement U-Bolt w/Locknuts part # 11-70.
    view full answer...
  • Correct 30-1/2 Inch Long 7-Leaf Slipper Spring For 15,000 lb Trailer Axle
    There isn't a correct option for a slipper spring end type (radius or flat) for a 15k axle, or a particular fit for the Dexter Tandem-Axle Trailer Equalizer Kit for 3" Slipper Springs # HAP-203-03. Flat and radius ends are completely interchangeable and either will work just fine, you only need to make sure your dimensions are correct. Since you mentioned having a 15,000 lb axle and your spring is 30-1/2" long and 3" wide you can use either of the following: - Dexter Axle 7-Leaf Slipper...
    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 Manda E
Updated by:
Manda E

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