
NSK FR 2-6 ZZS deep groove ball bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
- Series
- FR
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Description
NSK FR 2-6 ZZS belongs to deep groove 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 FR 2-6 ZZS and any equivalents.
The NSK FR series is a single-row deep groove ball bearing with a flanged outer ring. The flange lets the bearing seat and center directly against the housing face, so no machined shoulder is required. These bearings handle mainly radial loads at moderate speeds and suit low to medium-demand equipment.
The part number breaks down into three parts. FR identifies the flanged deep groove ball bearing family. The number that follows sets the size and dimensions of each variant. A suffix such as ZZS means sheet metal seals on both sides, which limit dust entry and help retain grease. This structure is clear in references like FR 2-6 ZZS, FR 133 ZZS, FR 155 ZZS and FR 156 ZZS. If no suffix appears, the bearing is open.
Typical uses include small electric motors, fans, centrifugal pumps, packaging machines, laboratory equipment and light-duty transmissions. The flange simplifies mounting in cast iron or folded sheet metal housings where milling a step is not practical. Maintenance teams in food, textile and ceramics plants, as well as repair shops for appliances and portable tools, encounter these bearings regularly.
Selection starts with the sealing type. ZZS works well against dust and light humidity, but rubber seals are preferable where water or fine particles are present. Confirm that the flange matches the housing diameter and depth, and that the shaft fit suits the inner ring. During mounting, align the assembly carefully to avoid loading the flange, apply the grease specified for the working speed, and avoid impacts on the seals. Good alignment contributes to service life.
Flanged deep groove ball bearings carry different nomenclatures across manufacturers. For replacement, compare the key dimensions: bore, outside diameter, width and flange diameter. If another brand's part number does not match, the equivalent can be identified from those dimensions. MR Industrial Accessories can suggest a compatible alternative when you provide the part number or exact size.
To request a quote for an FR series bearing, send the complete part number or the housing dimensions by WhatsApp or email. MR Industrial Accessories quotes the part number or size you specify and replies promptly. We can also advise on sealing and lubrication for your application.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the ZZS suffix mean on an FR bearing?
- ZZS indicates sheet metal seals on both sides. These seals reduce dust entry and retain grease, but they are not watertight. A part number without a suffix denotes an open bearing.
- How do I request an equivalent for an FR bearing from another brand?
- Send the part number or the main dimensions by WhatsApp: bore, outside diameter, width and flange diameter. With that data we can identify a compatible equivalent and quote the option that fits your assembly.
- What applications use flanged deep groove ball bearings?
- They are found in small motors, fans, pumps, packaging machines and equipment where the housing has no shoulder. The flange provides axial location without machining a step, which simplifies mounting and maintenance.

