SKF 3309 A-2ZTN9/C3VT113 double row angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Since 1945 · Martínez, Buenos Aires, Argentina
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How to read SKF 3309 A-2ZTN9/C3VT113
- 33Series
- Double row angular contact ball bearings, 33 series. For the same bore, each series has a different outside diameter and width.
- 09Bore
- 45 mm bore: 09 × 5.
- A-2ZTN9/C3VT113Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
3309 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 3309 A-2ZTN9/C3VT113 bearing has a 45 mm bore, a 100 mm outside diameter and a 39.7 mm width (45 x 100 x 39.7 mm).
SKF 3309 A-2ZTN9/C3VT113 is a reference of double row angular contact ball bearing, within Bearings. Request a quote for 3309 A-2ZTN9/C3VT113 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF double row angular contact ball bearing is a component designed to withstand radial and axial loads in both directions. Its design with two rows of balls in angular contact gives it a higher load capacity than a single row bearing, while keeping a compact section. It is ideal for applications requiring high rigidity and precision, such as machine tools, pumps and gearboxes. MR Accesorios Industriales sells this line as part of its broad range of SKF bearings.
The designation of these bearings follows a clear system. For example, 3304 A-2ZTN9/C3VT113: the first digits indicate the size and series (33 for double row), the letter A indicates an optimized internal design, 2Z indicates two shield plates, TN9 specifies a polyamide cage, C3 is the increased internal radial clearance and VT113 corresponds to a special grease and protection. The suffixes may vary depending on the part number. Knowing these suffixes is key to selecting the right bearing.
These bearings are used in a wide variety of industries in Argentina, such as metallurgy, food, petrochemical and cement. They are common in centrifugal pumps, compressors, industrial fans, conveyor belts and machine tools. Their ability to withstand combined loads and their rigidity make them suitable for equipment requiring high precision and reliability, even under demanding operating conditions.
For a correct selection, take into account the radial and axial load, the rotation speed and the environmental conditions. The sealing (2Z or 2RS) protects against contaminants; choose according to exposure to dust or moisture. The internal clearance (C3, C4) compensates for thermal expansion. Proper lubrication and precise alignment of the shaft and housing are essential to maximize service life. Follow the manufacturer's recommendations for mounting and lubrication.
As for equivalents, SKF double row angular contact bearings can be interchanged with those of other brands that follow the same dimensional and suffix designation. Always verify the tolerances and internal clearance, as they may vary between manufacturers. For replacements, it is advisable to consult a specialist who can validate compatibility and performance in the specific application.
If you need a quote or have questions about the designation, send the full part number by WhatsApp to MR Accesorios Industriales. Our technical team advises you so that you choose the right SKF bearing for your equipment.
Dimensions
Boundary dimensions of the basic designation 3309 per ISO 15: 45 x 100 x 39.7 mm (d x D x B).
- Bore
- 45mm
- Outside diameter (D)
- 100mm
- Width (B)
- 39.7mm
Frequently Asked Questions
- What are the dimensions of the SKF 3309 A-2ZTN9/C3VT113 bearing?
- The SKF 3309 A-2ZTN9/C3VT113 bearing has a 45 mm bore, a 100 mm outside diameter and a 39.7 mm width (45 x 100 x 39.7 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 3309.
- What does the C3 suffix mean in these bearings?
- The C3 suffix indicates a greater internal radial clearance than standard. It is used when the bearing will operate at high temperatures or with interference fits, to compensate for expansion and avoid excessive preload.
- What is the difference between 2Z and 2RS?
- 2Z are metal shield plates, suitable for environments with coarse dust. 2RS are rubber seals, which provide better sealing against moisture and fine particles. The choice depends on the contamination conditions.
- Can I replace an SKF bearing with another brand?
- Yes, as long as the main dimensions and internal clearance match. Tolerances and materials may vary, so it is advisable to verify the equivalence with a specialist before installing.