NTN 1206S self-aligning ball bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
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Decoding NTN 1206S
- 12Series
- Self-aligning ball bearings, 12 series. Series differ in outside diameter and width even when the bore is the same.
- 06Bore
- Bore 30 mm (06 × 5).
- SSuffix
- NTN suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
1206 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NTN 1206S measures 30 mm across the bore and 62 mm across the outside diameter; its width is 16 mm (30 x 62 x 16 mm).
NTN 1206S belongs to self-aligning 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 1206S and any equivalents.
When shafts deflect or supports are not perfectly aligned, an NTN S series self-aligning ball bearing keeps the assembly running smoothly. Its two rows of balls and spherical outer ring raceway let the bearing adjust to angular misalignment between shaft and housing. MR Industrial Accessories supplies these bearings from 10 mm bore diameter to customers across the United States and Latin America.
The part number tells you the series and size. In the 1200 series, the basic number is followed by the letter S. For instance, 1200S is a self-aligning bearing of that series with a steel sheet cage. As the last digit increases, so does the bore: 1201S, 1202S, 1203S, 1204S, 1205S, 1206S and 1207S cover a range of shaft sizes. Always quote the complete part number exactly as it appears on your equipment.
These bearings suit driven equipment where the shaft can bend or where alignment between supports is difficult to maintain. Typical uses include belt conveyors, vibrating screens, textile machines, fans, centrifugal pumps and power transmission drives. They are also a good choice for long shafts, where thermal expansion or combined loads call for the bearing to absorb small angular movements without losing load capacity.
Selection depends on the radial and axial loads, the rotation speed and the lubrication method. The S series can be greased or oiled. In dusty or damp locations, consider additional seals or protective covers. During mounting, use the correct tools and avoid striking the balls directly. Although self-aligning bearings tolerate initial misalignment better than rigid types, it is still wise to check internal clearance after installation.
Self-aligning ball bearings are interchangeable among manufacturers as long as the basic number and the design suffix match. An NTN 1205S can be replaced by an equivalent bearing from another brand that keeps the same dimensions and tolerances. Verify the full part number and operating conditions before substituting. If you are unsure, send us the original number and we will suggest a compatible alternative.
MR Industrial Accessories supplies NTN bearings. To request a quote for the S series, message us on WhatsApp or by email with the exact part number and quantity. We reply promptly and can also advise on mounting and the right lubrication for your application.
Dimensions
30 x 62 x 16 mm (d x D x B): boundary dimensions for basic designation 1206, according to ISO 15.
- Bore
- 30mm
- Outside diameter (D)
- 62mm
- Width (B)
- 16mm
SKF and other brands, same size
Other brands' pages with basic designation 1206: 30 x 62 x 16 mm (d x D x B) per ISO 15.
- Need the SKF 1206? We can also quote:1206 EM1206 ETN91206 EKTN92 more →
- FAG1206-TVH1206-K-TVH-C3
- NSK12061206 K
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- NTN 1206S bearing: what are its dimensions?
- NTN 1206S measures 30 mm across the bore and 62 mm across the outside diameter; its width is 16 mm (30 x 62 x 16 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 1206.
- What does the S suffix mean in NTN bearings?
- The S suffix denotes a design variant within the series, usually related to the cage type. In the 1200 series, for example, 1205S is a self-aligning bearing with a sheet metal cage. Always confirm the complete part number on the equipment plate or in the manual.
- Where are self-aligning ball bearings used?
- They are found in equipment where the shaft may become misaligned, such as conveyors, screens, fans and pumps. Their self-aligning ability helps reduce wear and extend service life in assemblies with deflection or thermal expansion.
- How do I request a quote for an NTN self-aligning bearing?
- Send us the complete bearing part number, for example 1206S, and the quantity you need via WhatsApp or email. We will quote you promptly. If you cannot find the part number, send a photo of the part and the shaft and housing dimensions so we can identify it.