Axle Bearing 6905 Z Kazuma 90cc - 250cc

Axle bearing 6905z. Fits all Kazuma 90cc to 250cc models.

This is a 6905Z roller bearing. Fits all Kazuma machines 90cc to 250cc. Customers will receive 1 bearing. The bearing number is written on the side of your old bearing. It is used on Kazuma rear axles and other similar machines.

This roller bearing will suit kazuma 90-250cc Chinese quad bikes. Buyers will receive one bearing as pictured. Many bearings cross-over to fit other applications. Please check your existing bearings prior to purchase to ensure that you are ordering the correct type for your machine. Key things to check are the outer diameter, inner diameter, width and bearing code, which written on the outer case of the bearing. The dimensions of this bearing are specified in the table at the bottom of this page.

What does the bearing code mean?

This is the code that is normally etched onto the side of the bearing. Most quality bearings will show a code.

The code is used to signify what type of bearing it is. For example, bearings that have the code 6001 will always have the same dimensions. The letters that follow this code tell you what type of cover/s the bearing has. Below is a list of the different letters that are used, and what they mean:

• RS or DDU: The bearing has a double rubber seal, one on each side, which covers the rollers inside the bearing. This is used to prevent dirt and grime from entering the rollers and clogging them up. This type of bearing is often found on wheels
• NR: The bearing includes a snap ring around its outer diameter, which is used to increase the overall size of the bearing
• Z: One side of the bearing rollers is covered by a metal shield to cover and protect the rollers. The other side of the rollers is open
• ZZ: The rollers on both sides of the bearing are covered by a metal shield
• No letter: If no letter follows the bearing size code then the rollers are open / uncovered. This is common when the bearing is situated inside wet areas, such as gearboxes, so that the oil can help lubricate the rollers

For example, a 6001 Z bearing will have specific dimensions, and will have a metal shield on one side to protect the rollers. The other side will be open. A 6001 RS bearing will have plastic dust covers on either side. A 6001 NR/ZZ bearing will have double metal shields and a snap ring.

Key Features

• All our bearings are made by machine manufacturers so you know the parts have been designed for the machines we suggest
• All bearings have been precision engineered to deliver long life and smooth rotation

We also sell other bearings, including those for internal engines, wheels, steering and swing arms. Please search for these specific sections in our Petrolscooter shop, or of course phone sales on 02476 398 085. You can also email us at sales@petrolscooter.co.uk

Which machines do these parts fit?

This item will fit Kazuma 90-250cc Chinese quad bikes as well as other similar quad set ups. Most bearings may crossover to fit many other machines, so please check the dimensions and pictures to confirm their suitability for other models. If the code matches the one on your existing bearing, then it will be a direct replacement for your set-up.

Dimensions