SKF 240/630 ECJ/W33 spherical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Spherical roller bearings
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Decoding SKF 240/630 ECJ/W33
- 240Series
- Spherical roller bearings, 240 series. Series differ in outside diameter and width even when the bore is the same.
- /630Bore
- Bore: 630 mm.
- ECJ/W33Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
240/630 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 240/630 ECJ/W33 measures 630 mm across the bore and 920 mm across the outside diameter; its width is 290 mm (630 x 920 x 290 mm).
SKF 240/630 ECJ/W33 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 240/630 ECJ/W33 and any equivalents.
SKF spherical roller bearings are double-row, self-aligning units built for high radial loads and axial loads in both directions, even when shafts are misaligned. They suit heavy equipment where shaft deflection or mounting errors are common. MR Industrial Accessories LLC supplies these bearings and helps you match the correct part number to your application.
The bearing designation uses letters and numbers to convey design details. Take 240/630 ECJ/W33: the numeric prefix identifies the dimension series; ECJ points to an optimized design with a sheet steel cage and special machining; W33 means the outer ring includes a lubrication groove and three holes. Reading these codes correctly lets you order exactly what the equipment requires.
These bearings appear in cement, steel, mining, paper and material handling operations. They are found in crushers, mills, vibrating screens, heavy gearboxes, industrial fans and paper machines. Their self-aligning capability makes them a fit for equipment where shafts bend under load or where mounting is not perfectly rigid.
Selecting the right bearing involves radial and axial load, speed, lubrication method and environmental conditions. Sealing matters: in dusty or damp settings, consider sealed versions. Internal clearance should match the operating temperature. During mounting, pay attention to initial alignment and proper lubrication; the self-aligning feature handles later misalignment, but not severe installation errors.
Spherical roller bearings can be interchanged between manufacturers when principal dimensions and suffix design align. A W33 code can be replaced by another brand that also offers a lubrication groove and holes. Always check tolerances and clearance, since these can differ between brands. For accurate equivalents, share the complete part number and we will help you identify the right option.
To request this bearing, send the part number via WhatsApp or email to MR Industrial Accessories LLC. We will provide a quote and guidance to ensure the replacement is correct.
Dimensions
630 x 920 x 290 mm (d x D x B): boundary dimensions for basic designation 240/630, according to ISO 15.
- Bore
- 630mm
- Outside diameter (D)
- 920mm
- Width (B)
- 290mm
Same size, other brands
Other brands' pages with basic designation 240/630: 630 x 920 x 290 mm (d x D x B) per ISO 15.
- FAG240/630-BEA-XL-MB1240/630-BEA-XL-K30-MB1
- NSK240/630CAME4240/630CAMK30E4
- NTN240/630B240/630BK30
- RKB240/630
- TIMKEN240/630YMB240/630YMD
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 240/630 ECJ/W33 bearing: what are its dimensions?
- SKF 240/630 ECJ/W33 measures 630 mm across the bore and 920 mm across the outside diameter; its width is 290 mm (630 x 920 x 290 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 240/630.
- What does the W33 suffix mean in a spherical roller bearing?
- W33 indicates that the outer ring has a circumferential groove and three distributed holes for lubrication. This enables more efficient relubrication, particularly in applications with high loads or moderate speeds.
- How can I tell if one brand of bearing can replace another?
- Compare the main dimensions (bore, outer diameter and width), cage type, internal clearance and any special suffixes. If they match, replacement is possible. Contact us with the full part number to verify compatibility and avoid issues.
- What does mounting a spherical roller bearing involve?
- Proper housing alignment, correct lubrication and the right fits on shaft and housing are essential. The bearing's self-aligning capability compensates for minor misalignment, but not major mounting errors. Follow the manufacturer's recommendations for each application.