NSK 22311EAE4 spherical roller bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Spherical roller bearings
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Decoding NSK 22311EAE4
- 223Series
- Spherical roller bearings, 223 series. Series differ in outside diameter and width even when the bore is the same.
- 11Bore
- Bore 55 mm (11 × 5).
- EAE4Suffix
- NSK suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
22311 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NSK 22311EAE4 measures 55 mm across the bore and 120 mm across the outside diameter; its width is 43 mm (55 x 120 x 43 mm).
NSK 22311EAE4 belongs to spherical 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 22311EAE4 and any equivalents.
NSK spherical roller bearings handle combined loads and shaft misalignment in demanding industrial settings. Their double-row design with a common spherical outer raceway keeps rollers in contact even when the shaft deflects, which suits conveyors, mills, and vibrating screens. Maintenance and purchasing teams use them where exact alignment is hard to achieve or maintain.
Reading the part number helps you confirm the right replacement. The prefix * means a stamped steel cage. The digits after it, such as 21308 or 21309, specify the size and dimension series. The letters EAE mark an optimized internal design with higher load capacity and better lubricant retention. The final 4 again indicates a stamped steel cage. So *21308EAE4 and *21309EAE4 differ only in size, sharing the same cage and internal design.
These bearings appear throughout mining, cement, steel, paper, and bulk handling operations. They are also found in flour mills, mixers, and road machinery where loads are high and conditions tough. Their self-aligning ability makes them a practical choice for long shafts or structures that flex under load.
Selection starts with radial and axial load, speed, and shaft diameter. Initial alignment should be careful, but the bearing tolerates later misalignment. Lubrication is critical: choose grease or oil based on speed and temperature, and match the sealing to the environment—dust, moisture, or vapors. Correct fits and clean lubricant extend service life.
When you need an equivalent, remember each manufacturer uses its own codes. A spherical roller bearing from another brand can replace an NSK unit if the main dimensions, cage type, and load capacity match. If you have a code from another brand or an unidentified part, send it to MR Industrial Accessories LLC and we will suggest a compatible option.
Request a quote by WhatsApp or email with the part number or size. Our team responds quickly and can help you select the correct bearing or find an equivalent for your equipment.
Dimensions
55 x 120 x 43 mm (d x D x B): boundary dimensions for basic designation 22311, according to ISO 15.
- Bore
- 55 mm
- Outside diameter (D)
- 120mm
- Width (B)
- 43mm
SKF and other brands, same size
Other brands' pages with basic designation 22311: 55 x 120 x 43 mm (d x D x B) per ISO 15.
- Need the SKF 22311? We can also quote:22311 E22311 EK22311 E/C36 more →
- FAG22311-E1-XL22311-E1-XL-K22311-E1-XL-T41A1 more →
- LINK-BELT22311LB22311LBK22311LBC31 more →
- NTN22311EAD122311EMD122311EAKD11 more →
- RKB22311
- TIMKEN22311EJ22311EM
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
- NSK 22311EAE4 bearing: what are its dimensions?
- NSK 22311EAE4 measures 55 mm across the bore and 120 mm across the outside diameter; its width is 43 mm (55 x 120 x 43 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 22311.
- What does the EAE suffix mean on an NSK spherical roller bearing?
- EAE indicates an optimized internal design with higher load capacity and better lubricant retention. The final number, such as 4 in EAE4, identifies a stamped steel cage.
- How can I tell if a bearing from another brand replaces an NSK one?
- Compare the main dimensions—inner diameter, outer diameter, and width—along with cage type and load capacity. If they match, it can be a valid replacement. Send us the part code if you need help.
- What lubrication is recommended for these bearings?
- It depends on speed, temperature, and environment. Oil suits high speeds; grease works for general conditions. Keep lubricant clean and verify sealing to prevent contamination.