NSK 22256CAMKE4 spherical roller bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Spherical roller bearings
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Decoding NSK 22256CAMKE4
- 222Series
- Spherical roller bearings, 222 series. Series differ in outside diameter and width even when the bore is the same.
- 56Bore
- Bore 280 mm (56 × 5).
- CAMKE4Suffix
- NSK suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
22256 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NSK 22256CAMKE4 measures 280 mm across the bore and 500 mm across the outside diameter; its width is 130 mm (280 x 500 x 130 mm).
NSK 22256CAMKE4 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 22256CAMKE4 and any equivalents.
NSK spherical roller bearings handle radial and axial loads simultaneously thanks to their double-row, self-aligning design. The spherical outer raceway lets the inner ring and rollers adjust to angular misalignment between shaft and housing, which suits equipment where shaft deflection occurs or precise alignment is difficult to achieve. MR Industrial Accessories LLC supplies this line to customers across the United States, Canada, Mexico and South America, and can help you confirm the right part number.
The CAMKE series code breaks down into distinct elements. CAM means a machined brass cage guided by the inner ring. KE indicates a tapered bore with a 1:12 taper. The number that follows the prefix gives the size: 22228CAMKE4 and 22230CAMKE4 belong to the 222 series, while 21319CAMKE4 and 21320CAMKE4 are part of the 213 series. E4 designates a lubrication groove and holes in the outer ring, which simplifies relubrication. Understanding these components helps you order the exact bearing for your application.
These bearings are common in belt conveyors, hammer mills, high-flow centrifugal pumps, industrial fans, pulp and paper machines, mining equipment, gearboxes and rotary kiln support rollers. Their ability to run with misalignment makes them a good fit for long shafts or structures that vibrate, where a rigid bearing would fail early.
Selection depends on radial and axial load, rotation speed and mounting type. A 1:12 tapered bore requires either an adapter sleeve or a shaft with a matching taper, and tightening is controlled by measuring the reduction of internal clearance. Lubrication can be grease or oil, and the E4 feature allows relubrication without disassembly. The machined brass cage works well at high speeds and moderate temperatures. Check initial alignment and residual clearance after mounting to prevent overloads.
When considering equivalents, remember that each manufacturer uses its own suffixes for cage, taper and lubrication. A spherical roller bearing from another brand with a tapered bore and brass cage may be interchangeable, but always compare main dimensions, internal clearance and cage type. The series number alone is not enough because suffixes change performance. If you have a part number from another brand or an unidentified bearing, send us the details and we will identify a compatible alternative.
For an NSK spherical roller bearing for your equipment, contact us via WhatsApp or email with the part number or the shaft and housing dimensions. We will provide a prompt quote and assist with mounting and lubrication questions. We supply the NSK line and other brands to meet your machinery needs.
Dimensions
280 x 500 x 130 mm (d x D x B): boundary dimensions for basic designation 22256, according to ISO 15.
- Bore
- 280 mm
- Outside diameter (D)
- 500mm
- Width (B)
- 130mm
SKF and other brands, same size
Other brands' pages with basic designation 22256: 280 x 500 x 130 mm (d x D x B) per ISO 15.
- Need the SKF 22256? We can also quote:22256 CC/W3322256 CCK/W3322256 CC/C3W33
- FAG22256-BEA-XL-MB122256-BEA-XL-K-MB1
- NTN22256EMD122256EMKD1
- RKB22256
- TIMKEN22256EMB
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 22256CAMKE4 bearing: what are its dimensions?
- NSK 22256CAMKE4 measures 280 mm across the bore and 500 mm across the outside diameter; its width is 130 mm (280 x 500 x 130 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 22256.
- What does the suffix CAMKE4 mean on an NSK bearing?
- CAM indicates a machined brass cage guided by the inner ring; KE indicates a 1:12 tapered bore; and E4 refers to a lubrication groove and holes in the outer ring. These suffixes determine how the bearing is mounted and maintained.
- How is a bearing with a 1:12 tapered bore mounted?
- It is mounted on a shaft with a 1:12 taper or with an adapter sleeve. Tightening is controlled by measuring the reduction of internal clearance with feeler gauges. Following the correct procedure prevents damage to the cage and raceways.
- Where are spherical roller bearings used?
- They are found in conveyors, mills, pumps, fans, paper machines, mining equipment and gearboxes, where combined loads and possible misalignments occur. Their self-aligning ability suits flexible shafts or mountings with alignment challenges.