SKF Tapered Roller Bearing 55 mm ID 120 mm OD 29 mm Width Steel Rollers Sheet Metal Cage 21311 EK

SKF 21311 EK Tapered Roller Bearing is a single-row tapered bearing designed to support demanding mechanical shafts with a 55 mm inside diameter, 29 mm race width, and 120 mm outside diameter. It integrates steel rolling elements and a sheet metal cage for stable operation under combined radial and axial loads within industrial machinery.

Its tapered bore allows a precise press-fit assembly onto tapered shafts, ensuring secure mounting and accurate axial positioning. The sheet metal cage guarantees accurate roller guidance to reduce operating friction and wear, resulting in extended service life with proper lubrication and maintenance.

This bearing delivers a dynamic load rating of 159 kN and a static load rating of 166 kN, making it suitable for heavy machinery where both high-speed rotation up to 7,500 rpm and high load capacity are required. The internal clearance grade CN balances axial clearance and preload sensitivity for precise bearing operation.

Applications include use in gearboxes, rotating equipment at elevated speeds, and heavy-duty bearing housings requiring tapered bore mounting. The tapered design necessitates a compatible adapter or sleeve to achieve the correct interference fit on the shaft.

This bearing features steel rollers for enhanced durability and load-bearing performance. The sheet metal cage aids in roller spacing and contamination resistance. Tapered bore ensures secure press-fit on tapered shafts.

Supports dynamic load rating of 159 kN and static load rating of 166 kN. Operates reliably at speeds up to 7500 rpm. Internal clearance CN provides precise axial and radial play control. Single-row tapered roller bearing construction.

Manufactured in the United Kingdom under stringent quality controls.

This SKF Tapered Roller Bearing is a dependable choice for industrial, manufacturing, and mechanical machinery applications requiring robust, high-speed, and high-load shaft support. EnvMart offers this premium bearing for precision engineering needs across various heavy-duty sectors.