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Bearing 1216K/C3

Delivery calculated separately
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1 $199.30
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PART.FSKFC30CU1216K.C
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Bearing 1216K/C3 Self-Aligning Ball Bearing (Tapered Bore)

Prices are EX WORKS. Delivery calculated separately based on freight and handling requirements.

The 1216K/C3 is a high-performance self-aligning ball bearing engineered for applications where shaft deflection or misalignment is a factor. This unit features two rows of balls and a common sphered raceway in the outer ring, making it insensitive to angular misalignment of the shaft relative to the housing.

Advanced Mechanical Properties

Designed with a 1:12 tapered bore, this bearing facilitates ease of mounting and dismounting through the use of adapter or withdrawal sleeves. It delivers excellent high-speed and light-load performance while maintaining low friction levels. With a C3 radial internal clearance, it is optimized for applications requiring greater thermal expansion room than standard bearings.

Technical Support: For assistance with sleeve compatibility or mechanical integration, please reach out to our team via our Contact Page.

Technical Specifications

Dimensions & Logistics
Bore Diameter 80 mm
Outside Diameter 140 mm
Width 26 mm
Net Weight 1.64 kg
Performance Data
Basic Dynamic Load Rating 39.7 kN
Basic Static Load Rating 17 kN
Limiting Speed 6 000 r/min
Reference Speed 9 500 r/min
Main Features
  • Dual Row Versatility: Features two rows of balls for robust load distribution.
  • Quality Construction: Manufactured from durable bearing steel with a sheet metal cage.
  • Operational Reliability: Insensitive to angular misalignment, ensuring smoother operation in imperfectly aligned housings.
  • Environmental Profile: Indicative carbon footprint of 5.9 kg CO2e for new products.
  • Unlubricated/Open: Supplied without sealing, coating, or initial lubricant to allow for specific grease application upon installation.
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Troubleshoot Bearing Temperatures - Decanter Maintenance

A simple rule for troubleshooting bearing temperatures: No more than 180°F (82°C) on the housing. The bearing outer ring can be up to 20°F (11°C) hotter than the housing.
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Trouble Shooting Bearing Temperatures

Preventative Maintenance

A simple rule for troubleshooting bearing temperatures: No more than 180°F (82°C) on the housing. The bearing outer ring can be up to 20°F (11°C) hotter than the housing. The lubricant originally specified for the application was likely selected to run at lower temperatures. A temperature increase of 50°F (28°C) may cause oil viscosity to drop by 50% or more. This could be the "tipping point" for the application, causing it to go from a hot (but stable) condition, to a hotter, unstable condition where thermal runaway occurs. Eventually, it doesn't matter how much lubricant you add to the application: the oil film is too thin inside the bearing to prevent metal-to-metal contact. Friction and heat build up, which could lead to catastrophic machinery seizure.

A better procedure for "hot" bearings would be:
  1. Check the housing surface temperature. It might be OK, even though most people find anything over 130°F (55°C) too hot to touch.
  2. Slowly add the proper amount of fresh grease to the application (use SKF Dialset). If it's a motor or other machine with a grease relief, open the relief and allow excess grease to escape.
  3. Monitor the temperature and make sure it doesn't run away. (You'll often get a temperature spike after adding grease as the bearing ejects the excess into the housing. This might take 30 minutes to several hours to stabilize, depending on the size of the machine.)
  4. If the temperature keeps going up, call for help - you will probably have to shut down and investigate.

Catastrophic failures can have untold consequences. Contact SKF or The Olive Centre, we can help you with temperature issues in bearings. A simple call could save you time, money and perhaps someone's life.

Why the type of bearing is fitted is important to the application?