4 Stud Lazy Trailer Hub

4 Stud Trailer Lazy Hub – Australian Made

4 stud trailer lazy hub is used on trailers under 750 kg and used as a rear axle on a tandem trailer or caravan setups under 2000 kg

Couplemate supports Australian workers and their families who produce products made in Australia.

Please note: Trailer parts such as hubs, drums and disc rotors do not fit Original Equipment.

• 1600kg unbraked hubs to suit parallel axles can be found here.
• 4 Stud Galvanised Unbraked Trailer Hub

Unbraked hubs are supplied with the following PCD.

• GEMINI – PCD 100mm – Stud Size 7/16″ – Stud 1.25 TPI – Hub Dia 150mm – Outer Boss 53.00mm – Rating 650kg
• HONDA – PCD 100mm – Stud Size 7/16″ – Stud 1.25 TPI – Hub Dia 150mm – Outer Boss 53.00mm – Rating 650kg
• GEMINI – PCD 100mm – Stud Size 7/16″ – Stud 1.25 TPI – Hub Dia 150mm – Outer Boss 53.00mm – Rating 650kg
• HONDA – PCD 100mm – Stud Size 7/16″ – Stud 1.25 TPI – Hub Dia 150mm – Outer Boss 53.00mm – Rating 650kg
• LANCER – PCD 100mm – Stud Size 7/16″ – Stud 1.25 TPI – Hub Dia 150mm – Outer Boiss 52.5mm – Rated 650kg
• BARINA – PCD 100mm – Stud Size 7/16″ – Stud 1.25 TPI  – Hub Dia 150mm – Outer Boss| 52.5mm – Rating 650kg
• MINI – PCD 100mm – Stud Size 7/16″ – Stud Size 1.25 TPI – Hub Dia 150mm – Outer Boss 60.9mm – Rating 1000kg
• MAZDA  – PCD 110mm – Stud Size 7/16″ – Stud Size 1.25 TPI – Hub Dia 150mm – Outer Boss 60.9mm – Rating 1000kg
• DATSUN  – PCD 4.5″-| Stud Size 7/16″ – Stud Size 1.25 TPI – Hub Dia 150mm – Outer Boss 60.9mm – Rating 1000kg
• PULSAR – PCD 4.5″ – Stud Size 7/16″ – Stud Size 1.25 TPI – Hub Dia 150mm – Outer Boss 60.9mm – Rating 1000kg
• COROLLA – PCD 4.5″ – Stud Size 7/16″ – Stud Size 1.25 TPI – Hub Dia 150mm – Outer Boss 60.9mm – Rating 1000kg
• CORTINA – 4 x 7/16″ Studs  – 4.25″ PCD –  Hub Dia 150mm – Outer Boss 60.9mm – Rating 1000kg
• SUBARU – 4 x 7/16″ Studs  – 140mm PCD –  Hub Dia 190mm – Outer Boss 60.9mm – Rating 1000kg

Larger Custom Work Example

Standard Holden bearings LM maximum rating is 1000kg

• Inner bearing ID 31.75mm, OD 59.10mm
• Outer bearing ID 19.05mm, OD 45.20mm
• Seal ID 37.5mm, OD 59.10mm
• Dust Cap 45.20mm

Suit axles with Ford bearings max rating are 1450kg

• Inner bearing ID 35.00mm, OD 59.10mm
• Outer bearing ID 22.00mm, OD 45.20mm
• Seal ID 43.9mm, OD 59.10mm
• Dust Cap 45.20mm

Please note: Wheel nuts are not included in your 4 Stud trailer lazy hub purchase. 

What is the best trailer bearing to use?

We recommend Japanese bearings for high-speed highway use and longevity.

• Check bearings yearly for water ingress or carbon black deposit in your grease.
• Carbon black indicates bearing wear. The carbon black comes from wear on the casing of the bearings.
• A quick way to check wheel bearings is to jack up the wheel and grab the wheel top and bottom. Give it a good shake from front to back.

Couplemate machine unbraked hubs and other spare parts for boat trailers at our Wynnum facility in Queensland. Landrover, Range Rover, and metric Landcruiser studs variations require 48-hour notice.

At Couplemate, we machine our own 4 stud galvanised lazy Hubs at our Wynnum facility in Queensland. Landrover, Range Rover, and metric Landcruiser studs variations require 48-hour notice until we supply these for your axle build.

Please note: Wheel nuts not included. We recommend the use of lug nuts, and please view them here.