SKF 7311 ACCBM angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Angular contact ball bearings
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Decoding SKF 7311 ACCBM
- 73Series
- Angular contact ball bearings, 73 series. Series differ in outside diameter and width even when the bore is the same.
- 11Bore
- Bore 55 mm (11 × 5).
- ACCBMSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
7311 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 7311 ACCBM measures 55 mm across the bore and 120 mm across the outside diameter; its width is 29 mm (55 x 120 x 29 mm).
SKF 7311 ACCBM belongs to angular contact ball 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 7311 ACCBM and any equivalents.
SKF ACCBM angular contact bearings are single-row bearings with a defined contact angle, built to carry combined radial and axial loads. They suit applications that call for precision and rigidity, including machine tool spindles, pumps and gearboxes. MR Industrial Accessories LLC supplies this SKF line and helps you match the bearing to your application.
Reading the code helps you order the right part. In designations such as 7213 ACCBM and 7311 ACCBM, the numeric portion sets the size and series, while the ACCBM suffix describes the internal design: angular contact geometry, a machined brass cage and related execution details. The same logic applies across the series, so the suffix matters as much as the number when you specify a replacement.
These bearings appear in equipment where power transmission must be precise and dependable: machine tool spindles, centrifugal pumps, compressors, gearboxes and gear cases, as well as mining equipment, cement plants and steel plants. Because they take axial load in one direction, they are a common choice for constant-thrust duties such as screw pumps and industrial fans.
Selection depends on load magnitude and direction, rotation speed and operating environment. Check internal clearance and sealing, and note that these bearings are typically mounted in pairs to handle axial loads in both directions. Grease or oil lubrication must be appropriate, and shaft-to-housing alignment needs to be accurate to avoid extra stress. Poor mounting shortens service life, so follow the manufacturer's instructions and use the correct tools.
SKF angular contact bearings can be interchanged with other brands that use the same dimensional and suffix system, such as FAG, NSK or NTN. Tolerances and internal design can differ, so confirm compatibility before substituting. If you are replacing an existing bearing, send us the complete code and we will help you identify an equivalent.
To request a quote, send the full part number by WhatsApp or email. MR Industrial Accessories LLC serves customers across the United States and in several Latin American countries, and our team can suggest equivalents and assist with selection to keep your equipment running.
Dimensions
55 x 120 x 29 mm (d x D x B): boundary dimensions for basic designation 7311, according to ISO 15.
- Bore
- 55mm
- Outside diameter (D)
- 120mm
- Width (B)
- 29mm
Same size, other brands
Other brands' pages with basic designation 7311: 55 x 120 x 29 mm (d x D x B) per ISO 15.
- FAG7311-B-XL-JP7311-B-XL-TVP
- NSK7311 AW7311 BEAW7311 BEAT85
- NTN73117311B
- RKB7311
- TIMKEN7311 B
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF 7311 ACCBM bearing: what are its dimensions?
- SKF 7311 ACCBM measures 55 mm across the bore and 120 mm across the outside diameter; its width is 29 mm (55 x 120 x 29 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 7311.
- What does the ACCBM suffix indicate on an SKF bearing?
- It identifies specific design features, including the contact angle, a machined brass cage and other execution variants. Keep the suffix when replacing the bearing so performance stays as intended.
- Can an SKF ACCBM bearing be replaced by another brand?
- Yes, if the dimensional designation and suffixes match. FAG, NSK and NTN offer equivalents, but tolerances and internal design may differ. Contact us and we will help you find a suitable option.
- How should an angular contact bearing be mounted?
- Mounting in pairs with proper preload and precise alignment is recommended. Use the specified lubrication and suitable tools to avoid damage, and follow the manufacturer's instructions.