NSK NTN 1208 1208K 1209 1209K Self Aligning Ball Bearing

Product Specifications

Application Suitability

1208 Self Aligning Ball Bearing: Solving Misalignment and Reliability Issues

Many maintenance managers face unexpected downtime when standard bearings fail due to shaft misalignment or poor material quality. Sourcing the right replacement across different brands like NSK or NTN can also delay repairs, especially when dealing with multiple suppliers. This 1208 self aligning ball bearing addresses these common challenges with engineering-focused solutions.

Designed for Heavy-Duty Misalignment Scenarios

This 1208 self aligning ball bearing handles radial loads while compensating for shaft misalignment up to 2-3 degrees, ideal for applications like conveyor belt pulleys or agricultural machinery where precise alignment is hard to maintain. With ISO 9001 certified production processes and access to both our BDL brand and international models, we provide consistent quality whether you need a single unit or bulk orders.

Optimal Performance in Demanding Environments

Operating in temperatures from -30°C to 120°C, this double-row bearing features a 60° contact angle that balances load distribution and alignment capability. The unseparated design ensures easy installation, while the steel or brass cage options accommodate different speed requirements—brass cages for higher rotational velocities up to 6000 RPM in industrial fans, steel cages for heavy shock loads in construction equipment.

Engineering Details That Impact Service Life

The 40mm bore diameter and 80mm outer diameter (18mm width) follow international dimensional standards, ensuring interchangeability with major brands. Precision ratings from P0 to P2 allow customization—P5 for CNC machine tools requiring tight runout control, P0 for general industrial use. Clearance options (C0 standard, C3 for thermal expansion in high-temperature applications) prevent premature failure from improper internal spacing. Bearing steel construction delivers surface hardness of HRC 58-62, critical for resisting wear in dusty mining environments.

Total Cost of Ownership Beyond Initial Price

Choosing the correct self aligning ball bearing reduces long-term costs significantly. A劣质 bearing with substandard clearance may vibrate excessively, leading to seal damage and lubricant leakage—costing 3-5 times the bearing price in repairs. Our bearings undergo dimensional testing (tolerance ±0.005mm on key surfaces) and hardness verification to ensure 80,000+ hours of service life in standard conditions, aligning with ISO 281 fatigue life calculations.

Quality You Can Rely On

Packaging & Shipping

• Packaged in cartons with palletized options for bulk orders, protecting against moisture and physical damage during transit
• Deliver time of 10-15 days for standard orders, with expedited shipping available for urgent requirements
• Logistics options include express courier (DHL/FedEx), air freight, or sea shipping to global destinations
• Low minimum order quantity supported, from single units for emergency repairs to full container loads

Get a Custom Quote for Your 1208 Bearing Needs

Whether you need the standard 1208 model, 1208K variant with taper bore, or equivalent from NSK/NTN, provide your required specifications and quantity. Our technical team can verify compatibility with your equipment based on load, speed, and environmental factors, ensuring you get the right bearing for the job.

Frequently Asked Questions