NSK 5205BZZ double row angular contact ball bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Decoding NSK 5205BZZ
- 52Series
- Double row angular contact ball bearings, 52 series. Series differ in outside diameter and width even when the bore is the same.
- 05Bore
- Bore 25 mm (05 × 5).
- BZZSuffix
- NSK suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
5205 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NSK 5205BZZ 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 5205BZZ and any equivalents.
When you need a bearing that handles radial and axial forces in both directions while keeping a low profile, the NSK double row angular contact ball bearing is a common choice. The two rows of balls give it more capacity than a single row design without taking up extra space. Machine tool spindles, pumps, compressors and gearboxes are typical places where this level of rigidity and precision matters.
The part numbering follows a simple pattern. Take 5201BZZ, 5202BZZ, 5205BZZ or 5206BZZ: the first digits set the size, the B stands for the double row layout, and ZZ means metal shields on both sides. Reading the code this way helps you confirm the bearing matches the assembly before you order.
These bearings show up in power transmission equipment, machine tools, centrifugal pumps, air compressors and speed reducers. You will also find them in automotive tensioners and pulleys. Because they take axial load in either direction, they suit arrangements that need accurate axial location and high stiffness.
Selection comes down to the radial and axial loads, the running speed and the environment. The ZZ shields keep dust and moisture out; if liquids are present, look at versions with rubber seals instead. Mounting must be aligned to avoid extra stress. Many of these bearings are greased for life, though critical applications may call for relubrication.
Replacing a bearing from another maker is often possible. Suffixes and tolerances can differ between brands, but the main dimensions usually line up. Send the original part number and we will identify the matching NSK option. If you only have measurements or a photo, that works too.
To get a quote, message the part number on WhatsApp or by email. Our team replies promptly and can suggest equivalents or help you choose the right bearing for your equipment.
Dimensions
- Bore
- 25mm
Frequently asked questions
- What does the BZZ suffix mean on these NSK bearings?
- BZZ tells you the bearing is double row (B) and has metal shields (ZZ) on both sides. That combination keeps dust and dirt out with less friction than rubber seals.
- How can I check if this bearing will replace the one I have?
- Send the original part number or the bore, outer diameter and width. We will match it to the NSK series. A photo of the part also helps if the number is unreadable.
- Does this bearing arrive lubricated?
- NSK bearings in this series typically come with lifetime grease and are ready to mount. If your application needs periodic relubrication, ask us and we will point you to the right option.