Part 770-223 Washer, STL, 1/4" ID x 1" OD is a precision flat washer manufactured from steel, designed for use across multiple Profinish, PowrLiner, and PowrDrive equipment models. This washer distributes load under bolt heads and nuts, prevents damage to mating surfaces, and maintains proper clamping force in critical assemblies. Replacing a worn, deformed, or missing washer ensures secure fastening and reliable equipment operation.
| Part Number | 770-223 |
|---|---|
| Part Description | Washer, STL, 1/4" ID x 1" OD |
| Brand | Profinish / PowrLiner / PowrDrive |
| Fits | Profinish TS40, TS50; PowrLiner (see long description for full list); PowrDrive 759-135 |
| Condition | New |
The 770-223 Washer, STL, 1/4" ID x 1" OD is a precision-engineered flat washer manufactured from high-quality steel. It is designed for use in critical fastening applications across Profinish TS series, PowrLiner, and PowrDrive equipment. With a 1/4-inch inner diameter and 1-inch outer diameter, this washer provides optimal load distribution for compatible bolt and fastener sizes.
Washers play a vital role in maintaining proper clamping force by distributing the load of bolted connections across a wider surface area. This prevents damage to mating components, reduces the risk of loosening from vibration, and ensures consistent fastening torque. Over time, washers can become deformed, corroded, or lost during maintenance. Replacing with this OEM-specification washer restores proper fastening integrity and prevents component loosening during operation.
| Load distribution | Spreads clamping force over a larger surface area |
|---|---|
| Surface protection | Prevents bolt heads and nuts from damaging mating surfaces |
| Vibration resistance | Helps maintain clamping force under dynamic conditions |
| Spacing / shimming | Provides precise spacing in assembled components |
| Deformation | Washer is bent, cupped, or no longer flat |
|---|---|
| Corrosion | Rust or chemical damage compromising washer integrity |
| Galling / wear | Surface damage from previous tightening cycles |
| Missing | Washer lost during disassembly or maintenance |
This washer is compatible with the following models. Always verify your equipment's parts diagram to ensure correct fit and application.
| Brand / Model | Component |
|---|---|
| Profinish TS40 | Washer |
| Profinish TS50 | Washer |
| PowrLiner 2850 | Washer |
| PowrLiner 3500 72v | Washer |
| PowrLiner 3500 | Washer |
| PowrLiner 3500s | Washer |
| PowrLiner 4500 | Washer |
| PowrLiner 5500 | Washer |
| PowrLiner 4955 | Washer |
| PowrLiner 6955 | Washer |
| PowrLiner 8955 | Washer |
| PowrLiner 1800M | Washer |
| PowrLiner 2800M | Washer |
| PowrLiner 6900 XLT SP | Washer |
| PowrLiner 4950 | Washer |
| PowrLiner 8900 XLT SP | Washer |
| PowrLiner 6950 | Washer |
| PowrDrive (Model No. 759-135) | Washer |
Note: This list includes common applications. Consult your parts manual for exact location and quantity.
When replacing washers, these associated components are often inspected or replaced at the same time.
Inspect threads for damage or stretching; replace if worn.
Check for thread damage or corrosion; replace as needed.
Some applications use lock washers for vibration resistance; inspect and replace.
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