SKF 2208 E-2RS1TN9/C3 self-aligning ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Self-aligning ball bearings
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Other brands for this category
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Decoding SKF 2208 E-2RS1TN9/C3
- 22Series
- Self-aligning ball bearings, 22 series. Series differ in outside diameter and width even when the bore is the same.
- 08Bore
- Bore 40 mm (08 × 5).
- E-2RS1TN9/C3Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
2208 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 2208 E-2RS1TN9/C3 measures 40 mm across the bore and 80 mm across the outside diameter; its width is 23 mm (40 x 80 x 23 mm).
SKF 2208 E-2RS1TN9/C3 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 2208 E-2RS1TN9/C3 and any equivalents.
SKF E-2RS1TN9/C3 bearings are self-aligning ball bearings that arrive sealed on both sides and set up with extra internal clearance. Because the outer ring is spherical, the bearing tolerates a shaft-to-housing offset of as much as 4 degrees. That makes it a practical choice where shafts flex or where supports are hard to line up perfectly. MR Industrial Accessories LLC supplies this series.
Reading the part number helps when you compare options. The base number, such as 2204 or 2205, fixes the size and the dimension series. The E suffix points to a refined internal design. The 2RS1 marking tells you there is a nitrile rubber seal on each side, keeping grease in and contaminants out. TN9 identifies a polyamide cage reinforced with glass fiber, which keeps weight down while staying durable. The /C3 suffix is the increased internal radial clearance. A full example is 2205 E-2RS1TN9/C3, which carries all of these characteristics at once.
On plant floors, these bearings turn up in industrial fans, conveyors, textile machinery, packaging lines and mixers. You will also find them in farm equipment such as seeders and harvesters, where dust and weather make a good seal essential. The self-aligning behavior pays off on long shafts that deflect under load, and in housings where the supports cannot be brought into exact alignment.
Selection comes down to radial and axial loads, running speed and the surrounding conditions. The 2RS1 seal handles dusty settings and moderate humidity, though it is not meant for submersion. Choose C3 clearance when operating temperatures run above 70 °C, or when the shaft fit is an interference fit. During mounting, press on the ring that is being fitted and avoid hammer blows on the outer ring, then check that the supports are aligned. Grease is already in place from the factory, so no further lubrication is needed.
Bearings from other makers with the same dimensions, seals, polyamide cage and C3 clearance can generally be swapped in. Small differences in sealing or clearance do change how a bearing performs, so confirm the complete part number before substituting. MR Industrial Accessories LLC supplies SKF and can advise on interchangeability with other brands we carry.
When you need to replace a self-aligning ball bearing, send the full part number by WhatsApp or email. We will quote it and help you pick the right option for your equipment.
Dimensions
40 x 80 x 23 mm (d x D x B): boundary dimensions for basic designation 2208, according to ISO 15.
- Bore
- 40mm
- Outside diameter (D)
- 80mm
- Width (B)
- 23mm
Same size, other brands
Other brands' pages with basic designation 2208: 40 x 80 x 23 mm (d x D x B) per ISO 15.
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
- SKF 2208 E-2RS1TN9/C3 bearing: what are its dimensions?
- SKF 2208 E-2RS1TN9/C3 measures 40 mm across the bore and 80 mm across the outside diameter; its width is 23 mm (40 x 80 x 23 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 2208.
- What does the suffix 2RS1 mean on these bearings?
- It means there is a nitrile rubber seal on both sides. The seal holds the lubricant inside and keeps dust and moisture out, which helps in dirty environments. Do not confuse it with other seal variants such as 2RSH or 2RS2, since their performance can differ.
- When is it advisable to use a bearing with C3 clearance?
- C3 clearance fits situations where operating temperatures are high, because thermal expansion eats into internal clearance. It is also the right call when the shaft fit is an interference fit, since mounting compresses the inner ring. For ordinary applications, standard CN clearance is often enough.
- Are they interchangeable with bearings from other brands?
- Yes, provided the main dimensions and tolerances line up. Sealed self-aligning bearings with a polyamide cage and C3 clearance are usually interchangeable across brands. Check the full part number and ask us if anything is unclear, because small differences in sealing or clearance affect performance.