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Knott 4 Inch Hub P Series – Sealed for Life Bearing 309726
Our Part Number – HUBARP44
Manufacturer’s Part Number – 6A9619.005A
This is a P Series unbraked trailer hub.
The shaft size required to fit this hub is 34mm diameter x 37mm long.
The hub comes complete with the following;
- 309726 Bearing fitted in the Hub
- Circlip fitted in the Hub
- M24 One Shot Nut with 32mm Head
- 64mm Hub Cap
- Knott Rear Seal for 309726 SFL Bearing
- M10 Wheel Nuts & Studs
This Hub has a 4″ PCD measurement.
Hub Depth – 60mm.
Will fit wheels with a 4″ PCD, with or without a cut out for a Grease Nipple.
Knott 4 Inch Hub P Series – Sealed for Life Bearing 309726 – Technical Information
| Wheel Bearing Specifications – 309726 | ||
| Internal Diameter | Overall Diameter | Width |
| 34mm | 64mm | 37mm |
Maintaining This Wheel Hub
The hub comes with a Sealed For Life Bearing pressed into the hub, which means very little maintenance is required.
It is good practice to check the torque settings on the wheel bolts frequently.
To check for play in the bearings, simply give the wheel a ‘shake’ to check for movement in the bearing and hub.
If there is any play, we recommend you change the bearing immediately.
The hub nut is a High Torque One Use nut and should be replaced with a new one if loosened.
If you require any spares for this hub, please see the links below;
1. Replacement 64mm Hub Cap
2. M10 Wheel Nuts
2.1 M10 Studs
3. Replacement One Shot Hub Nut
4. Replacement SFL Bearing
5. Replacement Rear Seal
To view our full range of unbraked wheel hubs, please
Click Here
For more information on replacing / fitting trailer wheel bearings, please follow the link below;
Trailer Wheel Bearing Replacement Guide
however, if you are unsure or require technical guidance, please call our team on 01909 473749.
If you require any guidance with building a trailer, then please follow the links below;
IVA Manual
Type Approval
Building a Trailer
