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NSK spherical roller bearings · NSK 23140CE4
NSK 23140CE4 spherical roller bearing

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NSK 23140CE4 spherical roller bearing

Manufacturer part number23140CE4Size: 200 x 340 x 112 mm (d x D x B)More 200 x 340 x 112 mm bearings →NSK 231 series size chart →
Brand
NSK
Category
Bearings
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Decoding NSK 23140CE4

231Series
Spherical roller bearings, 231 series. Series differ in outside diameter and width even when the bore is the same.
40Bore
Bore 200 mm (40 × 5).
CE4Suffix
NSK suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.

23140 is the standard ISO basic designation, which sets the bearing type, series and bore.

Description

NSK 23140CE4 measures 200 mm across the bore and 340 mm across the outside diameter; its width is 112 mm (200 x 340 x 112 mm).

NSK 23140CE4 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 23140CE4 and any equivalents.

NSK spherical roller bearings are built for applications where radial and axial forces arrive together and where the shaft does not always stay perfectly aligned with the housing. Two rows of rollers running against a spherical outer raceway let the bearing absorb angular misalignment, so mounting tolerances can be less strict. Equipment such as gearboxes, pumps, fans and mining machinery often relies on this design because of shaft deflection, settling or heavy duty cycles.

Reading the CE4 series designation is mostly a matter of breaking the code into its parts. A reference like 21319CE4 or 22326CE4 tells you both the bearing type and its size, while the CE4 suffix points to a version that uses a brass cage and comes with built-in lubrication, among other traits. Codes such as 23122CE4 and 23128CE4 belong to series with higher capacity. Having the full code on hand makes it much easier to match the bearing to the job.

On the plant floor, these bearings show up in conveyor systems, mills, crushers, centrifugal pumps, industrial fans and paper machines. Steel, cement, mining, paper and food processing operations use them regularly. Because they tolerate combined loads and misalignment, they tend to hold up in equipment exposed to vibration or shaft deflection, situations where other bearing types can fail early.

Choosing the right unit means weighing radial load, axial load, running speed and the surrounding environment. Sealing deserves attention: sealed versions keep dust and moisture out, while open versions depend on external lubrication. Internal clearance and the lubrication method should match the operating conditions. At mounting, set the initial alignment correctly and avoid impacts that could mark the rollers or the raceway.

Interchange is possible with other brands that share the same dimensional and design designation. If you have a competitor's code, we can point you to the equivalent NSK reference. Check tolerances and internal clearance before substituting, because small differences can change how the bearing performs.

To get a quote, send the complete code through WhatsApp. We will help you confirm the right version for your equipment. If the part is unidentified, share the main measurements and a photo, and we will suggest a compatible alternative.

Dimensions

200 x 340 x 112 mm (d x D x B): boundary dimensions for basic designation 23140, according to ISO 15.

Bore
200 mm
Outside diameter (D)
340mm
Width (B)
112mm

SKF and other brands, same size

Other brands' pages with basic designation 23140: 200 x 340 x 112 mm (d x D x B) per ISO 15.

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 23140CE4 bearing: what are its dimensions?
NSK 23140CE4 measures 200 mm across the bore and 340 mm across the outside diameter; its width is 112 mm (200 x 340 x 112 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 23140.
What does the CE4 suffix indicate on an NSK bearing?
It identifies a version that uses a brass cage and includes built-in lubrication, among other characteristics. Confirm the full code before ordering.
Should I pick an open or a sealed bearing?
It comes down to the environment. Sealed units guard against dust and moisture, which suits outdoor or contaminated areas. Open units rely on external lubrication and fit clean conditions.
Can an NSK bearing replace one from another brand?
Yes, when dimensions, tolerances and design line up. Send us the original brand's code and we will identify the equivalent NSK reference. Verify internal clearance before mounting.
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