
FAG 320/38-X tapered roller bearing
- Brand
- FAG
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Decoding FAG 320/38-X
- 320Series
- Tapered roller bearings, 320 series. Series differ in outside diameter and width even when the bore is the same.
- /38Bore
- Bore: 38 mm.
- XSuffix
- FAG suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
320/38 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
FAG 320/38-X belongs to tapered roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 320/38-X and any equivalents.
FAG tapered roller bearings in the 320/22-X through 320/42-X range are separable assemblies: a cone that carries the rollers and a cup that seats separately. This design lets them take radial and axial forces at the same time, which is why they show up in gearboxes, wheel hubs, machine tool spindles and other equipment where the shaft has to stay firmly located. MR Industrial Accessories supplies this line and helps you confirm the right part number.
Reading the designation is straightforward once you know the pattern. The three digits form the basic series number, then a slash, then the bore in millimeters, and finally the -X suffix. So 320/22-X, 320/28-X, 320/32-X, 320/38-X and 320/42-X all share the same series and differ only in bore size. The -X marks a design variant in that series, usually tied to tolerances or small dimensional differences. The safest way to identify a bearing is to read the full number off the cone or the cup and send it to us for checking against the FAG table.
These bearings are common in automotive, metalworking, food processing and mining operations. You will find them in gear reducers, transmission cases, wheel hubs, spindles and material handling equipment. Because they handle combined radial and axial load, they suit assemblies that need a rigidly guided shaft. On a plant floor that means conveyors, mills, presses and machinery running in continuous process.
Selection comes down to the radial and axial loads, the speed of rotation and how the bearing will be mounted. Tapered roller bearings normally run in pairs, with fits applied to the cone and cup as the arrangement requires. Grease or oil both work as lubrication, and the sealing choice depends on the surroundings: dusty or damp conditions call for external seals or a protected bearing. Support alignment matters, since these bearings do not tolerate angular misalignment well, and the axial clearance should follow the manufacturer's recommendations.
Tapered roller bearings from different brands can be interchangeable when their standardized dimensions and tolerances match. What decides this is the cone and cup dimensions, not the part number alone, so check the measurements and the suffix before substituting one brand for another. MR Industrial Accessories supplies the FAG brand within its bearing line and can point you to a suitable equivalent.
For an FAG tapered roller bearing, send the part number shown on the product through WhatsApp and we will get a quote back to you. You can also ask about other series or sizes in the bearing line.
Dimensions
- Bore
- 38mm
Frequently asked questions
- What does the -X suffix mean on an FAG bearing?
- It identifies a design variant within the series, which can involve tolerances, angles or specific dimensions. Send us the complete part number from the bearing so we can confirm the exact equivalent against the manufacturer's table.
- How do I know if a bearing from another brand replaces my FAG one?
- Interchangeability comes down to the cone and cup dimensions and the tolerances, so a similar part number is not enough. Compare the measurements and give us the original part number; we will guide you on the appropriate equivalent in our line.
- What lubrication do you recommend for tapered roller bearings?
- Grease or oil can be used, depending on the application and speed. In dusty or humid environments, consider external seals or protected bearings. The type and amount of lubricant should follow the manufacturer's instructions to support bearing service life.

