O-rings are made to contain thousands of PSI pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness. There are many causes for O-Ring failure. The most common among power tools are: • <u>Extrusion and Nibbling</u> - The O-ring has ragged, tattered edges. These are commonly caused by pressure spikes which shear off tiny "bites" from the o-ring, or caused by clearance gaps. • <u>Abrasion</u> - One or both sides of the o-ring appear rough and slightly flattened. Commonly caused by a contact surface that is too rough, contains grit or is too smooth to allow lubrication. • <u>Over Compression </u> - The O-ring is flattened on both sides and may have a "ring" split along its length. Commonly caused by excessive pressure or heat. • <u>Heat Hardening</u> - The O-ring has a pitted or cracked surface, and is often flattened on both sides. Caused by temperature exceeding o-ring capacity. • <u>Weather/Ozone Cracking</u> - The O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching (greater that 5%) causes similar cracking.
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| Brand | Model Number | Description |
|---|---|---|
| Black and Decker | 5019 | Hammer Drill - Demolition Hammer |
| Black and Decker | 5019K | Hammer - Demolition Hammer |
| Black and Decker | 5093 | Hammer Drill - 1-1/2 SR Rotary Hammer |
| Black and Decker | 5093K | Electric Drill - 1-1/2 Sr Rot Hamr |
| Black and Decker | 5095 | Hammer Drill - 1-1/2 S Rotary Hammer |
| Black and Decker | 5095K | Hammer Drill - 1-1/2 S Rot.Hammr |
| Black and Decker | 5096 | Hammer Drill - 1-1/2 SE Rotary Hammer |
| Black and Decker | 5096K | Electric Drill - 1-1/2 Se Rot.Hamr |
| Black and Decker | 5097 | Hammer Drill - 1-1/2 ME Rotary Hammer |
| Black and Decker | 5097-220 | Hammer - 1-1/2 Rotary Hammer 220v |
| Black and Decker | 5097K | Electric Drill - 1-1/2 Me Rot.Hamr |
| Black and Decker | 5098 | Hammer Drill - 1-3/4 XSE Rotary Hammer |
| Black and Decker | 5098K | Electric Drill - 1-3/4 Xse Rot.Hmr |
| Black and Decker | 5099 | Hammer Drill - 1-3/4 XME Rotary Hammer |
| Black and Decker | 5099K | Electric Drill - 1-3/4 Xme Rot.Hmr |
| DeWALT | DW530 | Hammer Drill - 1 1/2 Inch Rotary Hammer |
| DeWALT | DW530K | Hammer Drill - 1-1/2 Rotary Hammr |
| DeWALT | DW531 | Hammer Drill - 1-1/2 Inch Rotary Hammer |
| DeWALT | DW531K | Hammer Drill - 1-1/2 Rotary Hammr |
| DeWALT | DW532 | Hammer Drill - 1-1/2 Inch Rotary Hammer |
| DeWALT | DW532K | Hammer Drill - 1-1/2 Rotary Hammr |
| DeWALT | DW533 | Hammer Drill - 1-3/4 inch Rotary Hammer |
| DeWALT | DW533K | Electric Drill - 1-3/4in Ms Rot Hmr |
| DeWALT | DW540 | Hammer Drill - 40MM Non Electric Hammer |
| DeWALT | DW540K | Hammer Drill - Max Rotary Hammer Kit |
| DeWALT | DW541 | Hammer Drill - 1-1/2 SDS Rotary Hammer |
| DeWALT | DW541220 | Hammer Drill - Rotary Hammer |
| DeWALT | DW541K | Electric Drill - 1-1/2 Sds Rot.Hamr |
| DeWALT | DW541K220 | Hammer - Rotary Hammer |
| DeWALT | DW543K-AR | Hammer - Rotary Hammer |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
