Category Archives: Mill Chains

Chain Assembly in the Field

When it comes time to assemble your welded steel chain in the field, there are a few critical things that every customer should know.

First, the sidebar holes must be lubricated. Moly-Paste, 30W oil, WD40 or other types lubricants will work. Next, place the pin in the chain joint and press the pin in as far as possible. Keep in mind that if your pin is constructed with flats, you will want to line up the flats in the sidebar. Then you will begin tapping the pin with a hammer until snug.

Secondly, securing the chain joint to prohibit lateral movement is vitally important. In order to accomplish this, you will need to place a spacer bar between the outer sidebars and clamp it in place. This will keep the sidebars from moving in relationship to each other. The pin can be installed with a portable hydraulic press or driven in with a sledge hammer. Lastly, you will press or drive the pin into the chain until the head meets the sidebar.

Once the pin is in place you will need to determine whether you have cotter pins or rivet pins.

If you have a cotter pin you will need to follow these instructions:

  1. Install the cotter with a hammer and bend the ends enough to secure the cotter in the hole.

If you have a rivet pin you will need to follow these instructions:

  1. Heat the end of the pin (non-head side) with a rosebud or torch until the pin end is red in color.
  2. Rivet the pin end with a portable hydraulic press or peen over with a hammer.
  3. If the chain does not flex freely, hit the head end and rivet end alternately with a hammer to establish clearance. This will establish the necessary clearance without affecting the designed press fit in the sidebars.
  4. The integrity of the press fits must be maintained. Therefore, grinding pins or modifying the sidebar pin holes to facilitate assembly will void the warranty.

Watch the video below for a tutorial on how to install riveted pins.

Welded Steel Chain – Getting The Most Value Per Dollar

Webster Linear Logo


For most all your forest product applications, welded steel chains are your best chain choice. There is no other class of chain that offers a package of high strength, flexibility, ruggedness, precision, and durability equal to what is offered in welded steel chains. Along with a lower cost, welded steel chains are ideal for most conveyor applications with long or short runs, poor conditions, medium or high speeds and heavy loading. Adding some low cost features will pay high dividends in your operation, by giving you even better service and more value.

Continue reading Welded Steel Chain – Getting The Most Value Per Dollar

Reducing Fatigue Failures – Sidebars

Webster Linear Logo
Reducing Fatigue Failures

 Reducing Fatigue Failures – Sidebars


Reducing fatigue requires proper selection of steels as a means to improve fatigue life. We know that fatigue is probably the leading cause of steel failure. Simply stated, if we can improve resistance to failure, we can improve the life of the chain.

Unfortunately, when you look at a piece of steel, you can’t tell what grade of steel it is, or whether or not it was heat treated. Unless you have some metallurgical background, you really don’t know whether one steel is more fatigue resistance than another. You have to have a lot of faith and trust in the company you deal with to insure you are getting a fair deal.

Continue reading Reducing Fatigue Failures – Sidebars