How to Identify and Verify a BGL Adapter Sleeve Part Number

An adapter sleeve mounts a bearing with a tapered bore on a cylindrical shaft, so it usually sits inside an assembly and is easy to overlook until it has to be replaced. Before you order, the most reliable reference is the designation on the part you are replacing, or on its original paperwork.

If the sleeve is still installed, look at the visible faces before you take anything apart. If it has already been removed, clean off grease and dirt with a suitable solvent and a soft cloth. Avoid wire brushes or abrasives, which can erase a marking that is already faint.

Other sources are worth checking too: the original packaging, the machine's spare-parts list, a maintenance record or a previous purchase order. Any of these can confirm what was fitted before.

Adapter sleeve part numbers look alike. H207 and H208 differ by a single digit, and so do H306 and H307, yet each one is a different part. A designation that is missing a character, or one that is read from memory, can easily point to the wrong sleeve.

Our catalog lists BGL adapter sleeves across several series, including designations that begin with HE, HA and HS as well as codes such as H221, H222 and H320. We do not try to decode each part of a designation here; what matters is that you send the code exactly as it appears on the part or its documentation.

If anything after the base code is present, include it as well. Send what you see, and let us check it against the catalog.

Two habits cause most mix-ups: assuming that similar codes such as H204, H207 and H208 are interchangeable, and copying a designation from an old spreadsheet that was typed by hand. Whenever possible, check against the physical part or the original documentation, and if you can read only part of a code, send that part and say clearly that it is incomplete.

Copy the designation character by character, in the same order, keeping any spaces, dots, dashes or letters that follow the main code. Do not add separators that are not there, and do not drop any that are.

Watch for characters that are easy to confuse on a worn or stamped surface: the letter O and the digit zero, the letter I and the digit one, the letter S and the digit five. If a character is not clear, mark it as uncertain instead of guessing.

A sharp photo taken in good light, from straight on and from a low angle, often shows a marking that is hard to read by eye. Send the photo along with your transcription so both can be compared.

Markings wear off, and sometimes the original sleeve is lost. In that case, the bearing it carried and the shaft it sits on are the next best references. Send the bearing part number if you have it, and the shaft diameter.

If you can measure the sleeve, include its main dimensions and the type of nut and locking device used with it. Photos of the sleeve, the nut and the assembly help as well.

Mentioning the machine make and model can also help, since the original parts list may name the components that were fitted.

An adapter sleeve never works alone. It is part of a set that includes the bearing with a tapered bore, the shaft it clamps onto and the nut and locking device that hold it in place. When one of these parts changes, the others have to match it.

For that reason, it helps to record all of them at the same time. Write down the bearing designation, the shaft diameter and the sleeve part number together, ideally in the same maintenance record. If the sleeve is mounted in a pillow block housing, note the housing designation as well.

Having the whole set on file makes the next replacement simpler. It also lets us confirm that the sleeve you are asking for fits the bearing and shaft you already have, instead of checking each part in isolation.

Many identification problems start long before the part fails. A sleeve that was installed years ago may have no paperwork left, and the person who ordered it may no longer be on site. A short record kept at the time of installation avoids most of that work later.

A simple list per machine is enough: position, sleeve part number, bearing part number, shaft diameter and the date it was fitted. Add a photo of the marking taken before installation, while it is still clean and easy to read.

When the time comes to replace it, you can send that record as it is. It gives us everything we need to check the request against the catalog, and it reduces the chance of ordering a part that does not fit.

If you are replacing several sleeves on the same machine, label each one as you remove it so that every designation stays matched to its position. The same applies to the nuts and locking devices that come off with them.

MR Industrial Accessories is the official distributor of BGL in the USA. We work with maintenance, reliability and purchasing teams in the USA, Canada, Mexico and South America.

Send us the part number exactly as marked, for example H221 or H320, a photo of the part or its nameplate, or the measurements of the sleeve, the bearing and the shaft. Reach us by WhatsApp or email and our team will check it against the catalog and reply with a quote.