Trailer Hub and Drum H440-2A Idler 4 bolts

H440-2A Trailer Hub and Drum

H440-2A
Bt Idler 4-bolts 4.0” BC
2000-22001bs
Hub+bolts+nut+bearing cups 44610/44610+bearing cone 44649/44649+seals+dust cap

Hub has 4-bolt pattern on 4" circle. Hub assembly includes (2) L-44649 inner and outer bearings and SL-150-1 (1.50 I.D.) seal for a 1-1/16" diameter spindle. A SL-122 (1.25 I.D.) double lipped grease seal and (2) L-44643 inner and outer bearings are included for a 1" diameter spindle. Kit also contains a SCP-100 cotter pin, DC-1505 dust cap, (4) STN-506 lug nuts and pressed in bearing races. Pilot diameter 2.5 inches, flange diameter 5.56 inches

PLEASE NOTE: This kit will fit trailer axle spindles that have either a 1" or 1-1/16" bearing surface. This kit provides grease seals with axles that have 1.25" OR 1.50" seal surfaces. If you have any questions before ordering - call or email us, we can assist if you have a different spindle/seal size.

Trailer Hub and Drum

	H440-2A Bt Idler 4-bolts 4.0” BC 2000-22001bs Hub+bolts+nut+bearing cups 44610/44610+bearing cone 44649/44649+seals+dust cap		H865-2A Bt Idler 8-bolts 6.5”BC; 6000-7000lbs Hub+bolts+nuts +bearing cups 14276/25520 +bearing cone 14125/25520 +seals+dust cap
	H545-1A / H550-1A / H555-1A Bt Idler 5-bolts 4.5”;5.0;4.0;5.5BC 2000-2200lbs Hub+bolts+nuts+bearing cups 44610/68111+bearing cone 44649/68149+seals+dust cap		D545-1FA 10'' fanned brake drum 5 bolt on 4,5 b.c 3500lbs Hub drum+bolts+nuts+bearing cups 44610/68111+bearing cone 44649/68149+seals+dust cap
	H545-2A Bt Idler 5-bolts 4.5”BC 3500lbs Hub+bolts+nuts +bearing cups 44610/68111 +bearing cone 44649/68149 +seals+dust cap		D655-12A Brake drum 12” 6bolts 5.5” BC 6000lbs Hub drum+bolts+nuts+bearing cups 15245/25520+bearing cone 15123/25580+seals+dust cap
	H655-2A Bt Idler 6-bolts 5.5”BC 6000lbs Hub+bolts+nuts +bearing cups 15245/25520 +bearing cone 15123/25580 +seals+dust cap		D865-12 Brake drum 12” 8bolts 6.5” BC 7000lbs Hub+drum+bolts+nuts+bearing cups 14276/25520+bearing cone 14125/25520+seals+dust cap

What is the Trailer Hub?

Trailer wheels refer to the wheel components used to connect a trailer to a trailer. Trailer wheels are usually composed of one or more wheels, which are connected to the suspension system of the trailer or trailer, so that the trailer or trailer can tow the vehicle forward.
Trailer wheels are usually larger than trailer wheels because trailers require larger tires and wider tire contours to adapt to towing weight and driving resistance. Compared to trailer hubs, trailer hubs typically have a larger diameter and higher hub walls to withstand greater weight and centrifugal forces during turns.
Trailer wheels usually use the same tires and suspension system as trailer wheels, but need to be adjusted appropriately to accommodate differences in towing weight and driving resistance.

Composition of Trailer Hub

Trailer wheels typically consist of one or more wheels, which are composed of components such as hub walls, hub covers, tires, and bearings.
The following is the composition of one or more wheels of a trailer hub:
Hub wall: Hub wall refers to the outer shell of a wheel, usually made of high-strength steel or aluminum alloy to withstand the weight and stress of the tire and suspension system.
Hub cover: A hub cover refers to a cover that covers the outside of the hub wall, usually made of high-strength steel or aluminum alloy to protect the hub wall from damage.
Tyres: Tyres refer to shoes installed on wheels, usually made of rubber to provide grip and drainage performance.
Bearing: A bearing refers to the component that connects the wheel and the wheel hub cover, usually made of stainless steel or bearing steel to withstand the force and vibration when the wheel rotates.
Wheel screws: Wheel screws refer to screws used to connect the wheel and wheel hub cover, usually made of high-strength steel or alloy steel to withstand the weight and stress of the wheel.
In addition to the above five components, the trailer hub may also include other components, such as suspension system, shock absorber, braking system, etc. These components are usually designed and installed according to the requirements of the trailer or trailer.