This CE Smith idler hub assembly comes pre-greased and fully loaded, so you can skip the messy bearing packing. The bearings, races, grease seal, cap, lug nuts, and cotter pin are already included and ready for a quick bolt-on install. It’s lubricated with heavy-duty marine grease, perfect for hassle-free setup before your next haul.
Designed for use on 7,000-lb axles with #42 spindles, this hub can handle demanding loads with confidence. It’s built from sturdy iron and rated at 3,500 lbs per hub. Whether you’re replacing old hardware or building up a fresh axle, the hub’s solid construction keeps everything rolling smoothly under weight.
Corrosion is the enemy of trailer parts that see wet or salty conditions. CE Smith adds zinc plating to the lug nuts, cotter pin, and grease cap to help limit rust. That extra layer of protection keeps your hardware cleaner longer and helps the hub stay in good shape through repeated use.
No more piecing together parts from different sources. This kit includes the inner bearing (25580), outer bearing (14125A), races (25520 and 14276), and grease seal (GS-2250DL). The inner bearing diameter is 1.75", outer bearing diameter 1.25", with a 2.25" seal ID and 3.376" OD. It fits wheels sized 16", 16-1/2", 17", and 17-1/2" with an 8 on 6-1/2" bolt pattern for precise fitment.
This pre-assembled hub is perfect to keep as a spare or to get your trailer back in service fast. With its preloaded bearings, marine grease fill, and complete hardware package, it’s built to handle miles of towing without added prep time—just mount it up and go.
1. Count the lug holes
Look at the wheel hub or the back of the wheel and count how many lug holes there are(also called bolt holes).
Common configurations include: 4-lug, 5-lug, 6-lug and 8 lug
2a. For even lug counts (4-lug, 6-lug, 8-lug)
Measure from the center of one lug hole directly across to the center of the hole opposite it.
Common configurations: 4 on 4", 6 on 5.5", 8 on 6.5"
2b. For odd lug counts (5-lug)
Measure from the center of one lug hole to the outer edge of the hole directly across (not center-to-center since there's no directly opposite hole).
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today, we're taking a look at the C.E. Smith Trailer Idler Hub Assembly. The trailer idler hub assembly fits either axles. It includes your bearings, races, grease seal, grease cap, lug nuts, and cotter pin. The unit is pre-greased, so it's easy to install. There's not need to pact the bearings.
The lubricated design is a heavy-duty grease for marine applications, so that's the lubrication that it uses. It's a sturdy iron construction. It does feature a zinc plating on the lug nuts, the cotter pin, and the grease cap, which helps to limit corrosion. The product is made in the USA. This is designed for 7,000 pound axles with number 42 spindles.
Fits wheel sizes 16 inches and 17 inches. The bolt pattern on the unit is eight on six and a half inches. The grease cap flange diameter is 2.72 inches and the hub flange diameter is 8.5 inches. This single hub has a capacity of 35,000 pounds.Now, when it comes to the bearing race and seal information, it does come with your inner and outer bearings. Those are already installed.
They're pre-greased, already packed. Inner bearing is 25580 bearing with a 1.75 inch inner diameter. Outer bearing is a 14125A bearing with a 1.25 inch inner diameter. Races, for the inner race, it's a 25520, and the outer race is a 14276. The grease seal, which is already installed, that's a GS-2250DL seal, with an inner diameter of 2.25 inches and an outer diameter of 3.376 inches.That's going to do it for today's look at the C.E.
Smith Trailer Idler Hub Assembly.
Customer Satisfaction Score:
94% were satisfied with this product
6% of customers were not satisfied
Ratings & Reviews
Excellent service. The way every company should be
I was surprised at how fast it git here. The hubs were exactly what I needed and the price was right.
Great service over the phone trying to be sure this was the part I needed before ordering. Extremely fast delivery. Fits perfectly. Would definitely recommend this company.
Awesome customer service
Fastest shipping
Everything from product to customer service and delivery was great . Would by from them again.
parts worked. I could use a d shaped tang lock washer and nut though
I am ready to get them installed on my trailer and when I am done I will post a before and after pictures of the hubs on the trailer
Exactly as advertised and what I ordered. Quick turnaround and delivery, as always. Love to do business with this company.
I guess fit great
Always fast and staff are always on top of information informing me of my product delivery, Bought Tire rim packages and they exceeded my expectations in cost and durability
great product and convenient shipping.
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