--- title: Align Boring in Reno, Bores on One Centerline | Wolf Machine url: https://wolfmachinenv.com/services/align-boring/ business: Wolf Machine & Fabrication, Inc. address: 4812 Longley Ln, Reno, NV 89502 phone: (775) 359-5570 hours: Shop Monday-Friday 7:00 am-3:30 pm; closed Saturday and Sunday type: Metal and plastic fabrication and machining (custom and CNC machining, welding, metal and plastic fabrication, gearbox and part repair, align boring, metal spray) --- [Photo: Stock photo: a lathe rough-turning a steel shaft] - [Home](https://wolfmachinenv.com/) - [Services](https://wolfmachinenv.com/services/) - Align boring # Align boring: bores brought back onto one centerline Align boring, also called line boring, machines two or more bores so they share a single centerline, which is what a pin or shaft needs to pass through them freely. We align bore housings, carriers, equalizer and pivot bores and gear cases at our Reno shop, and do portable align boring at your site. [Photo: End mill cutting inside a steel ring, chips around] An end mill cutting inside a steel ring, with chips around it (stock photo). Stock photo: a lathe rough-turning a steel shaft A pin that has to go through three bores will only go through if the three holes are in line. Over time, wear and impact pull them apart, and a weld repair can pull them a little further. Align boring puts them back on the same axis so the machine runs as it was built. ## At a glance - Bores brought into line on one common axis - Weld build-up first when bores are worn oversize - Housings, carriers, equalizer and pivot bores - Shop work here, field work on the portable page I have used Wolf Machine several times over the past few years for fabricating and repair of parts on my ultralight aircraft. [...] These guys are great to deal with. I wouldn't take my projects anywhere else. James B. ยท Google review, September 2023 [Leave us a Google review](https://search.google.com/local/writereview?placeid=ChIJVWVOfCI_mYARibcFMPsDEKc) ## Why do bores walk out of line? Pins and bearings carry load, and the load is rarely even. Material wears faster on one side, bores go oval, and a part that has been hit or heated can distort. Welding a crack closed adds heat, which can pull a bore a small distance out of position. Once the bores are out of line, a pin binds, a bushing wears quickly and the machine develops play. You cannot fix that by replacing the bushing alone, because the bore it sits in is the problem. ## How is a part set up and bored in line? The part is measured first to find where the bores are and where they need to be. If the bores are oversize, they are built up with weld and cleaned to a surface that can be cut. The boring bar then passes through the bores on a single axis, cutting each to the same centerline and to the size that suits the new bushing or bearing. In the shop, this is done on a horizontal boring mill or a similar machine, which holds the part still while the bar cuts. You can read about the machine on the [horizontal boring and milling](https://wolfmachinenv.com/services/horizontal-boring-and-milling/) page. - Measure the existing bores and mark the target centerline. - Build up any oversize or damaged bore with weld. - Set the part so the boring bar runs along the common axis. - Bore each position to size on that one axis. - Check the finished bores and fit the new bushings or pins. ## Shop work or work at your site Parts that can come off the machine are bored in the shop. A frame or a housing that is too big or too fixed to move is handled at your site with [portable align boring](https://wolfmachinenv.com/services/portable-align-boring/). The [guide to the signs of a machine that needs align boring](https://wolfmachinenv.com/guides/signs-you-need-align-boring/) helps you decide which you are facing. ## What to send for a quote Photos of the bores, the pin or bushing sizes you know, and the machine make and model get the conversation started. Attach them to the [quote request](https://wolfmachinenv.com/request-a-quote/) or call [(775) 359-5570](tel:(775)%20359-5570), Monday to Friday, 7:00 am to 3:30 pm. ### Sources - [Wolf Machine & Fabrication services list](https://wolfmachinenv.com/services/) (2026-10-18) - [Boring (manufacturing), including line boring](https://en.wikipedia.org/wiki/Boring_(manufacturing)) (2026-10-18) ### Where align boring is used - Pivot and equalizer bar bores - Half carriers and other housings with paired bores - Gear cases with bearing bores on a common line - Machine frame and pivot pin bores - Bores repaired after cracks, wear or welding ### Typical parts - Half carriers and housings - Pivot shafts and their bores - Equalizer bars - Linkage and pivot bores ### Materials [Steels and steel alloys](https://wolfmachinenv.com/materials/steel-and-steel-alloys/) [All materials we machine](https://wolfmachinenv.com/materials/) ### How to send us the job Drawings, CAD files, sketches and photos all help. Put a ruler or tape in your photos, show the worn or broken area up close, and note any part number stamped on it. [Request a quote](#quote) [What to put on a drawing](https://wolfmachinenv.com/guides/what-to-put-on-a-drawing/) ### Talk to the shop [(775) 359-5570](tel:(775)%20359-5570) | Monday to Friday | 7:00 am - 3:30 pm | |---|---| | Saturday and Sunday | Closed | [Request a quote](#quote) ### Related - [Portable align boring](https://wolfmachinenv.com/services/portable-align-boring/) - [Horizontal boring and milling](https://wolfmachinenv.com/services/horizontal-boring-and-milling/) - [Signs a machine needs align boring](https://wolfmachinenv.com/guides/signs-you-need-align-boring/) ### Questions about this service - [Is metal spray as strong as new metal?](https://wolfmachinenv.com/faq/is-metal-spray-as-strong-as-new-metal/) ## Work from the shop [Photo: An industrial gearbox housing (speed reducer)] Job 11 An industrial gearbox housing (speed reducer). [Photo: A grinder assembly: machined cutter housing between thick plate end flanges, coupled to an electric motor on a fabricated base] Job 02 A grinder assembly: machined cutter housing between thick plate end flanges, coupled to an electric motor on a fabricated base. [Photo: A gold wheel (spiral gold-recovery concentrator) on a fabricated square-tube steel stand, built for the mining industry] Job 01 A gold wheel (spiral gold-recovery concentrator) on a fabricated square-tube steel stand, built for the mining industry. [See all our work](https://wolfmachinenv.com/gallery/) ## Related services - [Custom machining](https://wolfmachinenv.com/services/custom-machining/) - [CNC milling](https://wolfmachinenv.com/services/cnc-milling/) - [Vertical milling](https://wolfmachinenv.com/services/vertical-milling/) - [Horizontal boring and milling](https://wolfmachinenv.com/services/horizontal-boring-and-milling/) - [Lathe turning to 96 inch OD](https://wolfmachinenv.com/services/large-diameter-turning/) - [Blanchard grinding](https://wolfmachinenv.com/services/blanchard-grinding/) ## Align boring questions Still have a question? Call [(775) 359-5570](tel:(775)%20359-5570), Monday to Friday, 7:00 am to 3:30 pm. ### How do I know if my bores are out of line? Common signs are pins that bind, bushings that wear quickly and play that returns after a new bushing. Our guide on the signs of a machine that needs align boring lists them in detail. ### Can you bore oversize holes back to size? Often, yes. The bore is built up with weld and bored back to the original size and the right centerline. ### Is align boring only for large machines? No. Any assembly with bores that must share a centerline can need it, including gear cases, pumps and plant machinery. [Photo: Stock photo: a lathe turning a bar, hot chips flying] ## Request a quote Tell us what you need, attach a drawing or photos of the part, and we will get back to you during shop hours. Free consultations; prompt estimates. [Call (775) 359-5570](tel:(775)%20359-5570) - From your specifications, drawings or samples. We can also assist you in designing your product or part. - Free consultations and prompt estimates - Stands behind the work: Our rates are very competitive and our quality is second-to-none. Wolf Machine stands behind the work we perform. - Company accounts: all major credit cards, or we can open an account for your company Shop hours Monday to Friday, 7:00 am to 3:30 pm. Send your request any time and we will get back to you during shop hours. Stock photo: a lathe turning a bar, hot chips flying