3.5k Boat Trailer Axle Assembly 73 in Hub Face 58 in Spring Center 5 on 4.5 Idler Hubs and 25 1/4 inch Leaf Springs
Typically, replacing all the parts on your trailer together like this is difficult to do, and many measurements need to be taken in order to order the correct parts, which need to be sourced individually. There are some common measurements in the trailer industry though, and these Axle Kits are made with the most common sized parts in mind. This doesn't mean the Complete Trailer Axle Kit will fit your trailer though, you would need to take measurements from your trailer and compare them to the specifications below in order to guarantee that the parts in this assembly will fit your trailer frame. If you plan to replace your leaf spring mounting brackets as well, our Single Axle Leaf Spring Slider and Tandem Axle Leaf Spring Slider could make the whole project a lot easier. Please check all measurements and call or email us with any questions before placing your order.
3,500lb. Trailer Axle Specs:
3,500 lb. Capacity
73 inch Hub Face
58 inch Spring Centers (This measurement must match your current axles Spring Center Precisely in order to guarantee fitment)
2 3/8 inch Diameter Axle Tubing (Painted steel)
Cambered
Accu Lube / Posi Lube Greasable Spindles
Standard 4-Hole Brake Flange for installing Trailer Disc Brakes Brakes
Painted Steel Hub Specs
5 bolt 4.5 inch Bolt Spacing
1 3/8 inch inner bearing size (68149) x 1 1/16 inch outer bearing size (44649)
1.98 inch Dust Accu Lube Dust Cap with a Removable Plug to access the grease Zerk on the Axle
1.72 inch seal
Lug Nuts Not Included
Leaf Spring Specifications
25 1/4 inch Double-Eye Spring
9/16 x 11/16 Spring Bushing (Included)
Requires (2) 9/16 inch Diameter Spring Bolt (Not included)
1,750lb capacity Each, 4 Leaf-Spring
Underslung with Zinc Plated U Bolts
Parameters of Leaf spring
Part NO | Capacity | Leaf Qty | Leaf Specification | Overall Length (A) | Eye to Centre Bolt (B) | Centre Bolt to horizontal (C) |
| Parabolic Single Leaf Eye & Slipper Spring | ||||||
| TS001 | 600kg | 1 | 45mm(width) *7mm(thk) | 765mm | 350mm | customize |
| TS002 | 1000kg | 1 | 45mm(width) *7mm(thk) | 765mm | 350mm | customize |
| TS003 | 1400kg | 1 | 45mm(width) *7mm(thk) | 765mm | 350mm | customize |
| Multi-leaf Eye & Slipper Springs | ||||||
| TS004 | 500kg | 2 | 45mm(width) *7mm(thk) | 640mm | 300mm | 100mm |
| TS005 | 750kg | 3 | 45mm(width) *7mm(thk) | 640mm | 300mm | 100mm |
| TS006 | 1000kg | 4 | 45mm(width) *7mm(thk) | 640mm | 300mm | 100mm |
| TS007 | 1250kg | 3 | 45mm(width) *8mm(thk) | 640mm | 300mm | 100mm |
| TS008 | 1500kg | 4 | 45mm(width) *8mm(thk) | 640mm | 300mm | 100mm |
| TS009 | 2000kg | 5 | 45mm(width) *8mm(thk) | 640mm | 300mm | 100mm |
| TS010 | 650kg | 3 | 45mm(width) *7mm(thk) | 765mm | 340mm | 155mm |
| TS011 | 750kg | 4 | 45mm(width) *7mm(thk) | 765mm | 340mm | 155mm |
| TS012 | 1000kg | 5 | 45mm(width) *7mm(thk) | 765mm | 340mm | 155mm |
| TS013 | 1250kg | 6 | 45mm(width) *7mm(thk) | 765mm | 340mm | 155mm |
| TS014 | 1500kg | 7 | 45mm(width) *7mm(thk) | 765mm | 340mm | 155mm |
| TS015 | 1600kg | 8 | 45mm(width) *7mm(thk) | 765mm | 340mm | 155mm |
| Multi-leaf Eye & Slipper Springs Tandem | ||||||
| TS016 | 2200kg | 3 | 45mm(width) *7mm(thk) | |||
| TS017 | 3000kg | 4 | 45mm(width) *7mm(thk) | |||
| TS018 | 3500kg | 5 | 45mm(width) *7mm(thk) | |||
| Double Eye Multi-leaf Slipper Springs | ||||||
| TS019 | 2000kg | 5 | 60mm(width) *7mm(thk) | |||
| TS020 | 2200kg | 6 | 60mm(width) *7mm(thk) | |||
| TS021 | 2600kg | 7 | 60mm(width) *7mm(thk) | |||
| TS022 | 2750kg | 8 | 60mm(width) *7mm(thk) | |||
| Tandem Roller Rocker Spring | ||||||
| TS023 | 2000kg/2800kg | 5 | 60mm(width) *7mm(thk) | |||
| TS024 | 2500kg/3500kg | 6 | 60mm(width) *7mm(thk) | |||
| TS025 | 3000kg/4000kg | 7 | 60mm(width) *7mm(thk) | |||
| TS026 | 3500kg/4500kg | 8 | 60mm(width) *7mm(thk) | |||
| TS027 | 4000kg/4500kg | 9 | 60mm(width) *7mm(thk) | |||
SELECTING THE PROPER TRAILER AXLE
When selecting an axle for your application remember to consider the following important specifications:
LOAD CAPACITY: the load rating of the axle must support the maximum gross vehicle weight rating. For multiple axle trailers divide the GVWR by the number of axles to determine the minimum load capacity of each axle.
TRACK LENGTH: measure your axle track length by determining the distance between the center of one tire to the center of the other tire. A more precise measurement can be made by measuring the distance from one 'HUB FACE' to the other. The hub face is also known as the mounting surface where the wheel studs are located.
SPRING CENTERS: measure the distance from the center of one spring to the center of the other.
NOTE: not required for replacement torsion axlesOVERALL LENGTH: measure the distance from the very end of an axle's spindle to the very end of the opposite spindle.
AXLE STYLE: important when reusing old mounting hardware and also for proper tire clearance. Includes straight axles (round or square), drop axles with offset spindles, and torsion axles. Also consider spindle size when reusing existing hubs or drums.
AXLE CAMBER: Most trailer axles are designed with a bend in the tube that will deflect when the load (weight of the trailer) is applied. This will theoretically bring the trailer wheel camber toward a 0 value that is the best setting for most trailer applications. This will allow the tires to wear evenly and allow the longest tread life. Camber can be affected by damage to the axle. For example, if the axle spindle is bent, this will usually cause a negative camber on that side which will cause excess tread wear on the inside of that tire.
Ningbo Harsco Machinery Co., Ltd is a professional manufacturer of trailer parts in Ningbo, Zhejiang Province, China since 2016.
If you can send me the drawings or specifications of the trailer parts, mechanical parts and wheels, we can give you our price.
Q1: Do you have factory?
A: Yes, we have our own factory, own engineers, we can meet custom's unique requirement.
Q2: Can I have a sample order?
A: Yes, welcome sample order to test and check quality. Mixed samples are acceptable.
Q3: It's OK to print my logo on your product?
A: Yes, we can according to your exact requirement.
Q4:How do you ship the goods and how long does it take arrive?
A: We usually shipped by DHL, UPS, FedEx, it usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5: What is your advantages?
A: We are professional supplier for more than ten years, we always put the quality and price at the first place. At the same time, our products are exported to various countries, we have full experience to solve thorny problems.
If you want to know about our products and us, welcome to enquiry and email me.thanks
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