SKF 21307 CCK spherical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Spherical roller bearings
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Decoding SKF 21307 CCK
- 213Series
- Spherical roller bearings, 213 series. Series differ in outside diameter and width even when the bore is the same.
- 07Bore
- Bore 35 mm (07 × 5).
- CCKSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
21307 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 21307 CCK measures 35 mm across the bore and 80 mm across the outside diameter; its width is 21 mm (35 x 80 x 21 mm).
SKF 21307 CCK 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 21307 CCK and any equivalents.
Spherical roller bearings from SKF are self-aligning units built with two rows of rollers. They carry radial and axial loads in both directions and continue to work when the shaft is misaligned. Plants use them where shaft deflection or mounting inaccuracy would affect a rigid bearing. MR Industrial Accessories LLC supplies them to customers across the United States, Canada, Mexico and South America, with quotes handled by WhatsApp or email.
The part number tells you the series and the bore. In codes such as 21306 CCK and 21307 CCK, the 213 identifies the series and the digits 06 and 07 set the bore diameter. The CCK suffix marks the execution within the spherical roller range. When you send a request, copy the full code from the drawing or from the equipment nameplate so the exact variant is quoted.
These bearings suit process industries, mining, cement, steel, paper, aggregate processing and material handling, where loads vary and shafts deflect. They are also found in reducers, conveyor belts, mills, screens and agricultural machinery. MR Industrial Accessories LLC offers them alongside bearings, housings and power transmission components for maintenance and replacement work.
Selection depends on the radial and axial load, the rotation speed, the fit and the operating environment. During mounting, use the correct tools, avoid impacts on the rings and confirm that the shaft and housing are aligned. Lubrication and sealing follow the contamination level and the working temperature. Where the equipment permits misalignment, the bearing absorbs it while keeping its load capacity.
Replacements often involve equivalent codes from other manufacturers. Interchangeability rests on the main dimensions, meaning bore diameter, outside diameter and width, together with the execution type. If you only have another brand's code or an unmarked part, send it by WhatsApp or email and the team will identify a compatible equivalent and quote the code you need.
MR Industrial Accessories LLC also manufactures split pillow block housings, roller chains and sheaves. Bearings, seals, bushings, chains and pulleys are part of the same supply line. Send the code or the bore size and the team will reply promptly with a quote and, if useful, a suggested equivalent.
Dimensions
35 x 80 x 21 mm (d x D x B): boundary dimensions for basic designation 21307, according to ISO 15.
- Bore
- 35mm
- Outside diameter (D)
- 80mm
- Width (B)
- 21mm
Same size, other brands
Other brands' pages with basic designation 21307: 35 x 80 x 21 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
- SKF 21307 CCK bearing: what are its dimensions?
- SKF 21307 CCK measures 35 mm across the bore and 80 mm across the outside diameter; its width is 21 mm (35 x 80 x 21 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 21307.
- Which loads can spherical roller bearings carry?
- They take radial and axial loads in both directions, including when the shaft is misaligned. The two rows of rollers absorb deflection and mounting error, which is why they appear in equipment with long shafts or vibration.
- How do I request a quote for an SKF bearing?
- Send the complete code by WhatsApp or email, for example 21306 CCK or 21307 CCK, or give the bore size. The team replies promptly and can suggest a compatible equivalent if you provide a code from another brand.
- What matters when mounting a spherical roller bearing?
- Confirm that the shaft and housing are aligned, use suitable mounting tools and do not strike the rings. Choose lubrication and sealing according to the working environment. If the equipment allows misalignment, the bearing compensates for it without losing load capacity.