241/950 ECA/W33

Dimensions

d	950 mm	Bore diameter
D	1 500 mm	Outside diameter
B	545 mm	Width
d2	≈1 061 mm	Shoulder diameter of inner ring
D1	≈1 333 mm	Shoulder/recess diameter of outer ring
b	22.3 mm	Width of lubrication groove
K	12 mm	Diameter of lubrication hole
r1,2	min.12 mm	Chamfer dimension

Abutment dimensions

da	min.998 mm	Diameter of shaft abutment
Da	max.1 452 mm	Diameter of housing abutment
ra	max.10 mm	Radius of fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	27 943 kN
Basic static load rating	C0	55 000 kN
Fatigue load limit	Pu	3 000 kN
Reference speed		110 r/min
Limiting speed		160 r/min
Limiting value	e	0.33
Calculation factor	Y1	2
Calculation factor	Y2	3
Calculation factor	Y0	2

Tolerance class

Dimensional tolerances	Normal
Radial run-out	Normal

241/950 ECA/W33 Spherical Roller Bearing: Robust Design for Extreme Load Conditions
The 241/950 ECA/W33 spherical roller bearing is engineered to withstand heavy radial and axial loads in demanding industrial environments. Featuring a symmetrical roller design and an optimized internal geometry, this bearing ensures smooth operation even under severe misalignment or shaft deflection. The W33 suffix denotes an integrated lubrication groove and three oil holes on the outer ring, enabling efficient grease distribution for extended service life. Its ECA designation highlights enhanced cage guidance and reduced friction, while the large bore size (950mm) makes it ideal for heavy machinery requiring high load-carrying capacity and durability.

Key Benefits for Industrial Reliability and Maintenance Efficiency
Designed with heat-treated alloy steel rollers and raceways, the 241/950 ECA/W33 delivers exceptional resistance to wear and fatigue in high-vibration applications. Its self-aligning capability compensates for mounting errors up to 2.5°, minimizing premature failure in equipment like gearboxes or crushers. The pre-lubricated design reduces downtime by extending relubrication intervals, and the brass cage ensures stability at elevated temperatures. With a dynamic load rating exceeding 12,000 kN, this bearing outperforms standard models in industries such as mining, cement production, and steel mills where shock loads and contamination are common challenges.

Versatile Applications Across Heavy-Duty Sectors
The 241/950 ECA/W33 is widely deployed in large-scale rotating equipment, including wind turbine main shafts, paper mill dryer sections, and bulk material handling conveyors. Its ability to handle combined loads makes it critical for vertical roller mill drives in cement plants and offshore crane slew rings. The bearing's corrosion-resistant coatings and compatibility with high-viscosity greases also suit marine propulsion systems and hydroelectric turbine applications. For retrofit projects, its interchangeable dimensions with ISO 15:2017 standards simplify replacements in aging infrastructure, ensuring cost-effective upgrades for industries prioritizing operational uptime and safety.

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