Timken 387-S Steel Tapered Bearing with Micro Blue Coating Outer Rear Metal
$ 11.36
Description
Timken 387-S - Steel Tapered Bearing w/ Micro Blue Coating - Outer Rear This is a tapered bearing commonly used in the NASCAR hubs. We have a large lot along with the tapered bearings, races, and more. These come REM finished with a Micro Blue coating to reduce friction. Use: • Tapered Bearing - NASCAR Speedway - REAR - 5x5 - Outer Rear Specifications Series 385 Cone Part Number 387-S Design Units Imperial Cage Type Stamped Steel C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions) 1 42200 lbf 188000 N C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions) 2 10900 lbf 48700 N Dimensions d - Cone Bore 2 1/4 in 57.150 mm B - Cone Width 0.8640 in 21.946 mm Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius 3 0.03 in 0.800 mm da - Cone Frontface Backing Diameter 2.48 in 63 mm db - Cone Backface Backing Diameter 2.52 in 64 mm Ab - Cage-Cone Frontface Clearance 0.11 in 2.8 mm Aa - Cage-Cone Backface Clearance 0.03 in 0.8 mm a - Effective Center Location 4 -0.12 in -3 mm Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions) 5 6280 lbf 28000 N C1 - Dynamic Radial Rating (1 million revolutions) 6 24200 lbf 108000 N C0 - Static Radial Rating 24100 lbf 107000 N C a90 - Dynamic Thrust Rating (90 million revolutions) 7 3810 lbf 16900 N Factors K - Factor 8 1.65 G1 - Heat Generation Factor (Roller-Raceway) 42 G2 - Heat Generation Factor (Rib-Roller End) 15.7 Cg - Geometry Factor 9 0.0859
This Timken 387-S tapered bearing is a high-performance beast! The Micro Blue coating really cuts friction, making it perfect for NASCAR hubs or heavy-duty applications. I love the REM finish for extra durability—it feels premium and built to last. The stamped steel cage keeps everything secure, and the dynamic load rating is impressive. Whether you're racing or just need a tough bearing, this one delivers smooth, reliable performance. Definitely worth it for serious builds!