This Ball Bearing has metal shielding on both sides. This is a genuine Dewalt replacement part that is sold individually.

• Ball bearings are used to reduce friction between rotating parts. The balls or rollers take the load and spin, distributing the weight evenly while the minimal contact area of the ball reduces friction. This reduces wear on the tool and allows it to run smoothly.

• Bearings experience constant wear when the tool is in operation from pressure, heat, vibration and friction. Because of this, many Bearings need periodic maintenance or replacement.

Genuine Dewalt replacement part, this item is sold individually.
This screw is used in various places in all of the tools listed below
The most common use for this screw is to secure plastic housings together.
It has a Torx T-20 head.

This is a genuine Black and Decker/Craftsman replacement part , it is sold individually.
The purpose of the 241125-00 Fan is to keep the electric motor cool by creating an air flow up towards the motor.
At times dirt, rocks and other debris may damage the fan and it will need to be replaced. Otherwise the heat produced by the motor will damage it.

This is a genuine Black and Decker replacement part, it is sold individually.
It is made of plastic.
The purpose of the 241381-01 Blade Insulator is to keep the 092715-00 spacer from coming in contact with the blade and to eliminate vibration.

Dewalt genuine replacement part, that is sold individually.
2 are needed for the tools listed below.
It is always best to replace both brushes, even if only one is worn.

Worn brushes frequently are the cause behind a motor running poorly.
Replacing brushes can fix a motor that’s operating intermittently.
New brushes can restore a motor’s electric braking.

Carbon brushes are one of the most commonly replaced power tool parts. This is because carbon brushes are wear items, meaning that through friction and use they will gradually wear away until they need replacing. Worn brushes are a common causes of intermittent motor function, reduced electric braking and reduced motor power. A worn-out brush will often be worn down near to the wire lead and can be cracked, pitted, or burned. When replacing carbon brushes, be sure to inspect your armature for burns, cracks, or other damage which can indicate larger motor problems.

This is a genuine Black and Decker replacement part, it is sold individually.
This is the part of the mower that turns the motor on and off.
It is actuated by pulling on the switch lever.
It has four terminals on the back for slide on spade connectors.