BS2-2207-2RS/VT143

 

Dimensions

d	35 mm	Bore diameter
D	72 mm	Outside diameter
B	28 mm	Width
d2	≈42.4 mm	Shoulder diameter of inner ring
D1	≈65.3 mm	Shoulder/recess diameter of outer ring
b	4.4 mm	Width of lubrication groove
K	2 mm	Diameter of lubrication hole
r1,2	min.1.1 mm	Chamfer dimension
	Normal	ISO tolerance class for dimensions

Abutment dimensions

da	min.41.8 mm	Diameter of shaft abutment
da	max.42 mm	Diameter of shaft abutment
Da	max.65 mm	Diameter of housing abutment
ra	max.1 mm	Radius of fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	88.8 kN
Basic static load rating	C0	83 kN
Fatigue load limit	Pu	9.15 kN
Limiting speed		4 400 r/min
Limiting value	e	0.31
Calculation factor	Y1	2.2
Calculation factor	Y2	3.3
Calculation factor	Y0	2.2

Tolerances of run-out

ISO tolerance class for geometrical tolerances

P5

Radial internal clearance

Minimum initial clearance	30 µm
Maximum initial clearance	45 µm

BS2-2207-2RS/VT143 Spherical Roller Bearing: High-Performance Durability
The BS2-2207-2RS/VT143 spherical roller bearing is designed to withstand extreme radial and axial loads in demanding industrial environments. Its self-aligning capability compensates for shaft misalignment up to 3 degrees, ensuring smooth operation even under uneven stress or mounting inaccuracies. The bearing incorporates dual 2RS rubber seals, providing robust protection against contaminants like dust, moisture, and debris, while retaining lubrication for extended service life. The VT143 suffix indicates a specialized high-temperature grease fill, enabling reliable performance in applications where operating temperatures range from -30°C to +150°C. Precision-engineered with a symmetrical barrel-shaped roller design and reinforced steel cage, it delivers exceptional shock resistance and reduced friction, ideal for heavy machinery subjected to vibration or variable speeds.

Versatile Industrial Applications
Widely used in sectors requiring heavy-load support and operational resilience, the BS2-2207-2RS/VT143 excels in mining equipment, cement kilns, and steel mill conveyors. Its ability to handle combined radial and axial loads makes it suitable for gearboxes, crushers, and vibrating screens in harsh, high-temperature environments. The sealed design is critical for agricultural machinery, paper production lines, and offshore wind turbines, where contamination risks are high. Compatible with shaft diameters of 35mm and housing bore sizes tailored to industrial standards, this bearing simplifies replacements in pumps, fans, and material-handling systems. Industries such as energy generation, marine engineering, and construction rely on its durability to minimize unplanned downtime and maintenance costs.

Cost Efficiency and Compliance
Engineered for longevity, the BS2-2207-2RS/VT143 reduces total ownership costs through extended relubrication intervals and resistance to premature wear. The high-grade grease (VT143) ensures stable lubrication under thermal stress, while the hardened steel construction meets ISO 15:2017 dimensional standards for global compatibility. Pre-coated anti-corrosion surfaces enhance performance in humid or chemically aggressive settings. Its compact design accommodates space-constrained installations without sacrificing load capacity. Whether deployed in food processing mixers, railway axle boxes, or hydraulic systems, this bearing offers a reliable, maintenance-friendly solution for engineers prioritizing efficiency, safety, and compliance with industrial certifications like ABEC-3 or DIN 635-2.

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