BRAKE BALL FOR DAVID BROWN K963645

The K963645 brake ball is a small part designed for the brake mechanism on David Brown tractors. It is listed as 7/8" and is used on models in the 1400, 90, and 94 series. For this type of part, identification must be done carefully: part number, dimensions, and the specific brake mechanism it fits are the most useful identifiers.

A ball designed for the brake mechanism

In a brake mechanism, a ball bearing generally serves as a contact, retaining, or control element within the assembly. For this part number, the key information is its use in the braking system. If you are working on this area of the tractor, replacing this ball may be necessary if a part is missing, worn out, or no longer matches the correct dimension.

Since this is a small component, do not rely solely on visual appearance. A ball bearing that looks similar may not be suitable if the dimensions or application differ.

The key measurement: 7/8"

The 7/8" measurement is the most direct selection criterion for this part. For a mechanism ball, this dimension determines how it fits into its housing and ensures compatibility with the other brake components. Before replacing the part, compare the measurement taken from the old assembly with this value.

Part number K963645 provides a second useful reference. In practice, the correct choice depends on combining these two pieces of information:

• part number K963645,
• the 7/8" dimension,
• and the application within the brake mechanism.

David Brown Applications to Check on Your Tractor

This ball bearing is designed for David Brown tractors. The compatibility information in this sheet covers models from the 1400, 90, and 94 series. If your tractor belongs to one of these series, check the exact model designation and the current installation.

For individual brake components, a single series may include several variants depending on changes to the tractor or the mechanism. A visual inspection of the housing and dimensions is therefore still recommended, even if the model appears on the list.

When should this part be replaced?

Replacement is primarily warranted when overhauling the brake mechanism, after disassembly, loss of the original part, or signs of wear. If you are looking for a single ball bearing rather than a complete assembly, this part number meets that specific need.

To ensure your order is correct, simply check the function on the brake mechanism, the 7/8" dimension, and the part number K963645. These details will help you more accurately identify the correct part before reassembly.

Dimensions and Technical Specifications

• 7/8"

Compatibility by Make and Series

1400 Series

• 1410
• 1412

90 Series

• 1490
• 1690

94 Series

• 1494
• 1594
• 1694
• K963645

FAQ — Frequently Asked Questions

What is the purpose of this K963645 ball in the brake mechanism?

This ball bearing is part of the brake mechanism. It is a small control or support component that helps ensure the proper functioning of the entire system, which is why it is important to use the correct part number and diameter when replacing it.

Is the 7/8" dimension important when selecting this ball?

Yes, the 7/8" measurement is a critical specification. For this type of part, a difference in diameter can prevent proper installation in the brake mechanism or affect the system’s operation. Check this measurement before ordering.

Is this ball bearing suitable for David Brown tractors in the 1400, 90, and 94 series?

Yes, this ball is suitable for David Brown 1400, 90, and 94 series tractors. The model designations associated with this application are listed in the compatibility chart on the product page, allowing you to verify your fit more precisely.

How can I verify that part number K963645 matches my part?

The surest way is to check the part number K963645, its use on the brake mechanism, and the 7/8" size all at the same time. If your tractor is one of the David Brown models listed, these three criteria will help confirm that you’ve made the right choice.

Original replacement part numbers and brand names are provided for comparison purposes only. This does not imply that these are original parts.