Chainsaw bars are an essential part of any chainsaw. They are responsible for holding the chain in place and guiding it through the wood. The length of the chainsaw bar is an important factor to consider when choosing a chainsaw. A longer bar will allow you to cut through thicker logs, but it will also make the chainsaw heavier and more difficult to maneuver. A shorter bar will be lighter and easier to handle, but it will not be able to cut through as thick logs.
There are two main ways to measure the length of a chainsaw bar. The first way is to use a tape measure. Simply extend the tape measure from the tip of the bar to the base of the bar. The second way to measure the length of a chainsaw bar is to use a ruler. Place the ruler against the bar and measure from the tip of the bar to the base of the bar. The measurement will be in inches.
Once you have measured the length of the chainsaw bar, you can use this information to choose the right chainsaw for your needs. If you need to cut through thick logs, you will need a chainsaw with a longer bar. If you need a chainsaw that is easy to handle, you will need a chainsaw with a shorter bar.
Determining the Overall Length
When measuring the overall length of a chainsaw bar, there are a few key steps to follow to ensure accurate results:
1. Measure the Distance Between the Chainsaw’s Nose and Tail:
Start by placing the chainsaw on a flat surface. Using a measuring tape or ruler, extend it from the tip of the nose, where the chain first emerges from the bar, to the top of the tail, where the bar ends. Record this measurement. Avoid measuring along the cutting teeth, as this can lead to an inaccurate reading. Instead, follow the straight line formed by the bar itself.
2. Determine the Length of the Bar’s Nose:
Measure the length of the bar’s nose by placing the measuring tape or ruler at the tip of the nose and extending it to the point where the nose transitions into the main body of the bar. Record this measurement.
3. Subtract the Nose Length from the Overall Length:
To obtain the overall length of the chainsaw bar, deduct the nose length from the overall measurement taken in step 1. The resulting value represents the length of the bar itself, excluding the nose.
Measuring the Cutting Length
The cutting length of a chainsaw bar refers to the length of the guide bar that the chain wraps around and makes contact with the wood. It directly correlates to the size of timber you can cut with your chainsaw.
To determine the cutting length, follow these steps:
-
Locate the guide bar:
The guide bar is the long, flat metal piece at the business end of your chainsaw. -
Measure from the tip to the base:
Using a measuring tape or ruler, extend it from the tip of the guide bar to the base where it attaches to the chainsaw body. Make sure to measure along the cutting edge, not the entire length of the bar. -
Record the measurement:
The measurement you obtain is the cutting length of your chainsaw bar.
Typically, chainsaw bars are available in lengths ranging from 12 to 36 inches. The appropriate length depends on the size of the trees or logs you will be cutting.
Here is a table to help you choose the correct cutting length for different scenarios:
| Cutting Length (in inches) | Recommended Use |
|---|---|
| 12-16 | Small to medium-sized branches and limbs |
| 18-22 | Small to medium-sized trees |
| 24-28 | Medium to large-sized trees |
| 30-36 | Large and dense trees |
Using a Measuring Tape or Ruler
This is the most straightforward method and can be done with a regular measuring tape or ruler. Simply extend the measuring device along the entire length of the chainsaw bar, aligning the zero mark with the inside edge of the base of the bar bracket. Note the measurement at the opposite end of the bar.
Measuring with a Measuring Tape or Ruler – Step-by-Step
- Ensure the chainsaw is turned off and the chain is slack.
- Align the zero mark of the measuring tape or ruler with the inside edge of the base of the bar bracket.
- Extend the measuring device along the entire length of the chainsaw bar, keeping it parallel to the base of the bar and the tip of the bar.
| Measurement | Chainsaw Bar Length |
|---|---|
| 14 inches | 14-inch chainsaw bar |
| 16 inches | 16-inch chainsaw bar |
| 18 inches | 18-inch chainsaw bar |
| 20 inches | 20-inch chainsaw bar |
| 22 inches | 22-inch chainsaw bar |
Checking the Manufacturer’s Specifications
The most straightforward method of measuring a chainsaw bar’s length is by referring to the manufacturer’s specifications. This information is typically printed on a label affixed to the bar or in the owner’s manual. Manufacturers use specific measurements to denote the bar’s length, which are usually available in inches or centimeters. To ensure accuracy, it’s advisable to consult the manufacturer’s specifications for the exact measurement.
For example, some manufacturers may use a measurement system that represents the length from the tip of the bar to the rear of the bar, excluding the sprocket nose. This measurement is referred to as the “total length” or “overall length”. In contrast, other manufacturers may use a measurement system that excludes the sprocket nose and only measures the length of the cutting edge, also known as the “effective cutting length”.
To avoid confusion, it’s essential to understand the specific measurement system used by the manufacturer of your chainsaw. The provided table below summarizes the different measurement systems commonly used by chainsaw manufacturers:
| Measurement System | Measurement Type |
|---|---|
| Total Length | Length from tip of bar to back of bar (excluding sprocket nose) |
| Overall Length | Length from tip of bar to back of bar (excluding sprocket nose) |
| Effective Cutting Length | Length of the cutting edge (excluding sprocket nose) |
Identifying the Gauge
The gauge of a chainsaw bar refers to its thickness. It is measured in inches and typically ranges from .043 inches to .063 inches. The gauge of a bar determines the type of chain that can be used with it. A narrower gauge bar will require a narrower chain, while a wider gauge bar will require a wider chain.
To identify the gauge of a chainsaw bar, you can use a caliper or a ruler. If you are using a caliper, simply measure the thickness of the bar at its narrowest point. If you are using a ruler, measure the width of the bar’s groove. The gauge of the bar will be the width of the groove divided by 2.
The following table shows the different gauges of chainsaw bars and the types of chains that can be used with them:
| Gauge | Chain Type |
|---|---|
| .043 inches | Narrow-kerf chain |
| .050 inches | Medium-kerf chain |
| .058 inches | Wide-kerf chain |
| .063 inches | Super-wide-kerf chain |
Selecting the Appropriate Chain
The length of your chainsaw bar will largely determine the gauge, pitch, and count of the chain you’ll need. These three factors are all essential for ensuring that your saw runs smoothly and efficiently. Here’s a quick rundown of each factor:
- Gauge: The gauge is the thickness of the chain’s drive links. It’s typically measured in thousandths of an inch (e.g., a .050-gauge chain is 0.050 inches thick).
- Pitch: The pitch is the distance between the centers of three consecutive rivets on the chain. It’s typically measured in inches (e.g., a 3/8-inch pitch chain has a 3/8-inch distance between rivets).
- Count: This refers to the number of drive links on the chain. It’s directly related to the length of the bar.
| Bar Length (inches) | Chain Gauge (inches) | Chain Pitch (inches) | Chain Count |
|---|---|---|---|
| 14-16 | .043 or .050 | 3/8 | 52-56 |
| 18 | .043 or .050 | 3/8 or .325 | 57-60 |
| 20-22 | .043 or .050 | .325 or 3/8 | 60-64 |
| 24-26 | .050 | 3/8 | 66-71 |
| 28-30 | .050 | .325 or 3/8 | 72-76 |
Keep in mind that this is just a general guide. The specific requirements for your saw may vary depending on the manufacturer and model. It’s always best to consult your owner’s manual or refer to the manufacturer’s website for the recommended chain specifications.
One of the most common mistakes people make when measuring the length of a chainsaw bar is to include the length of the nose bar. The nose bar is the small, pointed section at the end of the bar that helps to guide the chain. However, it is not included in the overall length of the bar.
Another common mistake is to measure the length of the bar from the tip of the sprocket nose to the end of the bar. This will also give you an incorrect measurement, as the sprocket nose is not included in the overall length of the bar.
To avoid these common mistakes, it is important to measure the length of the bar from the inside of the bar mounting holes to the end of the bar.
Additional Tips for Measuring the Length of a Chainsaw Bar
Here are some additional tips for measuring the length of a chainsaw bar:
| Tip | Description |
|---|---|
| Use a tape measure or ruler. | A tape measure or ruler is the most accurate way to measure the length of a chainsaw bar. |
| Measure in inches or centimeters. | The length of a chainsaw bar is typically measured in inches or centimeters. |
| Record the measurement. | Once you have measured the length of the bar, be sure to record the measurement so that you can reference it later. |
Understanding the Significance of Bar Length
Purpose of Bar Length
The length of a chainsaw bar is crucial for determining the size and type of cutting tasks it can handle. Shorter bars are suitable for pruning small branches, while longer bars are designed for felling larger trees and cutting through thicker lumber.
Impact on Cutting Capacity
The length of the bar directly influences the cutting capacity of the chainsaw. Longer bars can accommodate longer chains with more teeth, allowing for faster and more efficient cutting. However, longer bars are heavier and require a more powerful engine to operate effectively.
Balance and Maneuverability
Bar length impacts the overall balance and maneuverability of the chainsaw. Shorter bars provide more control and maneuverability, making them ideal for intricate cutting tasks. Longer bars offer increased reach and cutting power but can be more cumbersome to handle.
Job Site Considerations
The appropriate bar length for a chainsaw depends on the specific job site requirements. For tasks involving cutting branches and small logs, a shorter bar is sufficient. For larger trees and heavy-duty applications, a longer bar is recommended.
Table of Common Bar Lengths
| Bar Length | Applications |
|---|---|
| 10-14 inches | Pruning, small-diameter branches |
| 16-18 inches | General cutting, medium-sized trees |
| 20-24 inches | Felling large trees, commercial logging |
Choosing the Right Bar Length
Selecting the appropriate bar length is essential for maximizing the performance of the chainsaw. Consider the following factors:
* Size and type of cutting tasks
* Job site requirements
* Balance and maneuverability
* Engine power of the chainsaw
* User experience
Safety Precautions When Measuring
When measuring the length of a chainsaw bar, it is crucial to follow these safety precautions to prevent accidents and ensure your well-being:
- Always wear appropriate safety gear, including gloves, safety glasses, and hearing protection.
- Ensure the chainsaw is turned off, the spark plug is disconnected, and the bar is cool to the touch before attempting to measure it.
- Place the chainsaw on a stable, flat surface to prevent it from rolling or moving during measurement.
- Hold the chainsaw securely and keep your hands clear of the bar and chain.
- Use a measuring tape or ruler that is long enough to extend the entire length of the bar.
- Position the tape or ruler correctly against the bar’s cutting edge, starting from the nose of the bar.
- Extend the tape or ruler to the opposite end of the bar, aligning it with the end of the cutting edge.
- Read the measurement clearly from the tape or ruler.
- Record the measurement accurately for future reference.
- Double-check the measurement to ensure accuracy.
Measuring Chainsaw Bar Length
To accurately measure the length of your chainsaw bar, follow these steps:
- Identify the correct measuring point on the bar. It is usually located at the nose of the bar.
- Position the end of the measuring tape or ruler at the identified point.
- Extend the tape or ruler along the top surface of the bar, parallel to the cutting edge.
- Continue extending the tape until it reaches the end of the bar.
- Read the measurement on the tape or ruler.
- Note down the measurement for future reference.
How to Measure the Length of a Chainsaw Bar
To measure the length of a chainsaw bar, you will need a measuring tape or ruler. Start by placing the end of the measuring tape or ruler at the base of the bar, where it attaches to the saw body. Then, extend the measuring tape or ruler to the tip of the bar. The measurement you get is the length of the bar.
It is important to measure the length of the bar accurately, as this will determine the size of the chain that you need to purchase. A chain that is too short will not be able to wrap around the bar properly, and a chain that is too long will be difficult to control and may cause the saw to kickback.
People Also Ask
What is the standard length of a chainsaw bar?
The standard length of a chainsaw bar varies depending on the size and power of the saw. Smaller saws typically have bars that are 12 to 18 inches long, while larger saws may have bars that are 20 to 36 inches long.
What is the best way to measure the length of a chainsaw bar?
The best way to measure the length of a chainsaw bar is to use a measuring tape or ruler. Start by placing the end of the measuring tape or ruler at the base of the bar, where it attaches to the saw body. Then, extend the measuring tape or ruler to the tip of the bar. The measurement you get is the length of the bar.
What if I don’t have a measuring tape or ruler?
If you don’t have a measuring tape or ruler, you can use a piece of string or twine to measure the length of the bar. Wrap the string or twine around the bar, making sure that it is tight against the bar. Then, mark the length of the string or twine on a piece of paper or cardboard. You can then use a measuring tape or ruler to measure the length of the mark.
