SKF 3310 A double row angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Decoding SKF 3310 A
- 33Series
- Double row angular contact ball bearings, 33 series. Series differ in outside diameter and width even when the bore is the same.
- 10Bore
- Bore 50 mm (10 × 5).
- ASuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
3310 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 3310 A measures 50 mm across the bore and 110 mm across the outside diameter; its width is 44.4 mm (50 x 110 x 44.4 mm).
SKF 3310 A belongs to double row angular contact ball 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 3310 A and any equivalents.
SKF double row angular contact bearings are engineered to manage radial and axial loads simultaneously in both directions. With two rows of balls and inclined raceways, they also accommodate tilting moments, making them suitable for applications that demand high rigidity and precision. Their compact design integrates two single row bearings into one unit, which simplifies mounting and saves axial space.
The part numbering system is straightforward: the base number, such as 3204, indicates the size and load capacity, while the A suffix denotes an internal design variation, typically related to the contact angle or cage type. This means codes like 3204 A, 3205 A, and others in the series all represent double row angular contact bearings with that specific internal design. Understanding these designations helps you order the exact replacement.
These bearings are found in a range of industries, including metallurgy, food processing, textiles, and machine tools. Typical equipment includes milling machine spindles, gearboxes, pumps, compressors, and transmission systems where combined loads and moments are present. They are also common in production lines that require high precision and reliability, such as automotive and packaging operations.
When selecting a bearing, consider the magnitude and direction of the loads, the operating speed, and the environmental conditions. Sealing is critical: in dusty or moist environments, choose variants with seals or shields. Lubrication must match the working temperature, and mounting requires precise alignment and correct adjustment of axial clearance. Forced mounting can damage the raceways, leading to premature failure.
Interchangeability between brands is possible if dimensions and tolerances match, but always verify the complete code and technical specifications. SKF is a brand we supply, giving you access to genuine products. Not all manufacturers use the same suffixes, so double-check the full designation before ordering.
For replacement of any bearing in this series, send the part number via WhatsApp or email. Our team can suggest equivalents and help you choose the right component to minimize downtime. Request a quote by part number and keep your equipment running with quality parts.
Dimensions
50 x 110 x 44.4 mm (d x D x B): boundary dimensions for basic designation 3310, according to ISO 15.
- Bore
- 50mm
- Outside diameter (D)
- 110mm
- Width (B)
- 44.4mm
Frequently asked questions
- SKF 3310 A bearing: what are its dimensions?
- SKF 3310 A measures 50 mm across the bore and 110 mm across the outside diameter; its width is 44.4 mm (50 x 110 x 44.4 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 3310.
- What does the A suffix indicate in bearings like 3204 A and 3205 A?
- The A suffix denotes an internal design variant within the series, often related to the contact angle or cage material. To understand its exact meaning for your application, refer to the complete designation and technical specifications.
- When should I choose a double row bearing over two single row bearings?
- A double row bearing occupies less axial space and simplifies mounting by combining two bearings into one. If you need to handle axial loads in both directions and tilting moments, this compact option is often more suitable. Also consider the required rigidity and precision.
- What are the key points for mounting an angular contact bearing?
- Proper alignment of shaft and housing, adjustment of axial clearance according to specifications, and correct lubrication are essential. Forced or misaligned mounting can cause noise, overheating, and premature failure. Always follow the manufacturer's recommendations.