Spiral Helical Cutter head for Grizzly 6" Benchtop Jointer Model G0946 is installed with 20 carbide inserts. Each insert has four R150 round edges. The inserts are seated at a slight angle to the boarding feed, which generates true shear-cut, eliminates tear-out, and leaves a glossy surface finish on any wood, to or against the grain of boards. As the carbide inserts cut at a small portion of the 15mm length in a staggered way other than the direct strike on board as long straight blades of a conventional cutter head, noise is hugely reduced during option. When one edge is dull or chipped, loosen it, clean it and the seat up, turn it 90 degrees to reveal a new edge, and tighten it up. You now have a new sharp edge in minutes. Only replace the inserts when four edges are affected. This dramatically reduces your downtime. The inexpensive carbide inserts are standard sizes and easy to acquire. Due to the quality cut, your sanding work is reduced by three-quarters. The life use of carbide inserts is 50 times of the high-speed steel blades. A spiral cutter head consumes less power than a cutter head with HSS blades. These features make retrofitting much cheaper. As the lock cutter head removes short strips of wood, dust extraction becomes much easier, and clogging at the hood fort never happens even if your dust collector is not powerful enough or well designed. Upgrade your planer now and it will pay back your investment in no time.
Kit includes:
* High tensile strength alloy steel cutter block.
* 20 carbide inserts installed.
* 5 extra carbide inserts.
* 5 extra screws.
* 2 bearings preinstalled.
Do I need to replace the original bearings?
If the bearings in your machine are in good condition, they can be reused by carefully removing them with a bearing or pulley puller. However, if the bearings are tightly pressed onto the shaft, removal may cause damage. To minimize this risk, we recommend replacing old bearings with our greased and sealed bearings, designed for long-lasting performance. For a smooth upgrade, we suggest adding the bearings to your shopping cart before completing your purchase.
We provide premium bearings from NSK, SKF, NTN, FAG, Timken. They are renowned for their high quality and performance, designed to provide durability and reliability in various applications
If you add the bearings to your order, we will preinstall them for you when premounting is possible, saving you the hassle of doing it yourself.
Do I need to to Add a Few Boxes of Carbide Inserts
We provide 5 carbide inserts and 5 screws as spare parts. However, many of our customers choose to purchase additional boxes, as the shipping costs for separate purchases can make it less economical.
Do I need a Torque Wrench?
To securely lock the carbide inserts, we recommend applying a torque of 48 to 52 Pound-Inches (or 5.42 to 5.88 Newton-Meters). (Note: 1 Newton-Meter is equal to 8.851 Pound-Inches, and 1 Pound-Inch is approximately 0.113 Newton-Meters.) It is crucial not to apply excessive torque, as this could cause the carbide inserts to crack or explode. On the other hand, using too little torque may result in the inserts not being properly secured, which could lead to cracks, shattering, or uneven height on the cutter block, causing ridges or lines on the board.
If one person is responsible for maintaining the machine, they can typically apply the same torque consistently without a torque wrench. However, when multiple people are involved in machine maintenance, ensuring uniform torque application can be challenging. For consistency and peace of mind, we recommend using a torque wrench.
What kind of steel the cutter block is made of?
The cutter block is constructed using GB/T 40Cr, a structural alloy steel of the same caliber as ASTM grade 5140, AISI 5140, SAE 5140, DIN 41Cr4, BS 41Cr4, JIS SCr440, and EN 41Cr4.The primary components of this steel are as follows: carbon (C) at a range of 0.37-0.44%, silicon (Si) between 0.17-0.37%, manganese (Mn) within 0.50-0.80%, and chromium (Cr) from 0.80-1.10%.
In terms of physical properties, this steel exhibits a tensile strength range of 115-234σb/MPa, a yield strength of 2σ 0.2 ≥/MPa, and an elongation capacity of 65 δ5≥ (%). It also has a HBS range of 123-321 and a HRC rating of 30.
This alloy steel is frequently utilized in low to moderately stressed components for machines, engines, and vehicles.
