SKF 3307 A-2ZTN9/MT33 double row angular contact ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Decoding SKF 3307 A-2ZTN9/MT33
- 33Series
- Double row angular contact ball bearings, 33 series. Series differ in outside diameter and width even when the bore is the same.
- 07Bore
- Bore 35 mm (07 × 5).
- A-2ZTN9/MT33Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
3307 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 3307 A-2ZTN9/MT33 measures 35 mm across the bore and 80 mm across the outside diameter; its width is 34.9 mm (35 x 80 x 34.9 mm).
SKF 3307 A-2ZTN9/MT33 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 3307 A-2ZTN9/MT33 and any equivalents.
SKF double row angular contact bearings are engineered to handle radial and axial loads in both directions at once. The two ball rows run on inclined raceways, which also lets them absorb tilting moments. You will find them in machine tool spindles, pumps, gearboxes and other setups that call for precision and rigidity. MR Industrial Accessories supplies this line and can help you pick the right variant.
The part number tells you a lot about the bearing. Take 3200 A-2ZTN9/MT33: the digits before the letter give the series and size; A points to a particular internal design; 2Z means two shield plates; TN9 is the polyamide cage; and MT33 identifies the grease and lubrication. Other suffixes appear depending on the job—2RS for rubber seals, TN9 for polyamide cage, and so on. Reading these codes correctly is the first step to matching the bearing to its environment.
These bearings show up wherever axial and radial forces act together. Machine tool spindles, centrifugal pumps, compressors, gearboxes and power transmission equipment are common examples. You will also see them in automotive gearboxes and differentials, as well as in agricultural machinery. Because they take load in both directions, they suit assemblies that need stiffness and accuracy, such as milling heads or grinding spindles.
Selection comes down to axial and radial load, speed and operating conditions. Sealing matters: 2Z versions keep out dust and dirt, while 2RS versions seal more tightly. Lubrication must be right, and many variants arrive pre-lubricated. During mounting, align carefully and control preload to avoid early failures. Check internal clearance plus shaft and housing tolerances. Our team can point you to the most suitable execution.
SKF double row angular contact bearings can be interchanged with other brands that share the same dimensional designation. But suffix letters differ from one maker to another, so always verify the technical data before substituting. Preload, clearance and cage type may not match. Talk to our technical team to confirm compatibility and prevent problems on the line.
Need a double row angular contact bearing? Send the complete code by WhatsApp or email to MR Industrial Accessories. We will help you identify the exact variant your equipment uses and suggest equivalents if needed. Request a quote and get straightforward advice.
Dimensions
35 x 80 x 34.9 mm (d x D x B): boundary dimensions for basic designation 3307, according to ISO 15.
- Bore
- 35mm
- Outside diameter (D)
- 80mm
- Width (B)
- 34.9mm
Frequently asked questions
- SKF 3307 A-2ZTN9/MT33 bearing: what are its dimensions?
- SKF 3307 A-2ZTN9/MT33 measures 35 mm across the bore and 80 mm across the outside diameter; its width is 34.9 mm (35 x 80 x 34.9 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 3307.
- What does the suffix 2ZTN9 mean on an SKF bearing?
- The 2Z part means the bearing has two metal shield plates. TN9 indicates a polyamide cage. These codes identify the sealing and cage characteristics.
- How is a double row angular contact bearing different from a single row one?
- A double row bearing has two ball rows, so it can take axial loads in both directions and handle tilting moments. A single row bearing only takes axial load in one direction and must be mounted in pairs.
- When should I choose a 2RS sealed version over a 2Z shielded one?
- The 2RS version uses rubber seals for better protection against liquids and fine dust. The 2Z with metal shields works well with coarse particles and high speeds. The decision depends on your working conditions.