B7040-E-T-P4S-UL Bearing

 

d	200 mm	Bore diameter
D	310 mm	Outside diameter
B	51 mm	Width
Cr	295.000 N	Basic dynamic load rating, radial
C0r	260.000 N	Basic static load rating, radial
Cur	17.200 N	Fatigue load limit, radial
nG Grease	3.800 1/min	Limiting speed for grease lubrication
nG Oil	6.000 1/min	Limiting speed for oil lubrication
≈m	11,7 kg	Weight

da	217 mm	Diameter shaft shoulder
da	h12	Diameter shaft shoulder clearance
Da	293 mm	Shoulder diameter outer ring
Da	H12	Shoulder diameter outer ring clearance
ra max	2,1 mm	Maximum recess radius
ra1 max	1 mm	Maximum recess radius
Etk min	232,1 mm	Minimum diameter injection pitch
Etk max	245,4 mm	Maximum diameter injection pitch
Etk1 min	232,1 mm	Minimum diameter injection pitch
Etk1 max	245,4 mm	Maximum diameter injection pitch
a	85 mm	Distance between the apexes of the pressure cones

rmin	2,1 mm	Minimum chamfer dimension
r1 min	2,1 mm	Minimum chamfer dimension
α	25 °	Contact angle

Tmin	-30 °C	Operating temperature min.
Tmax	100 °C	Operating temperature max.

FV L	2.711 N	Preload force light
FV M	9.065 N	Preload force medium
FV H	18.765 N	Preload force heavy
KaE L	7.860 N	Lift-off force light
KaE M	27.018 N	Lift-off force medium
KaE H	57.509 N	Lift-off force heavy
ca L	460 N/µm	Axial rigidity light
ca M	722 N/µm	Axial rigidity medium
ca H	965 N/µm	Axial rigidity heavy

 

The B7040-E-T-P4S-UL is a precision spindle bearing meticulously engineered for demanding applications requiring exceptional rotational accuracy and speed. Characterized as a single row angular contact ball bearing, it boasts a 40mm bore diameter, making it suitable for medium-sized spindles. Key features include its "E" optimized internal design for enhanced speed capability, a robust "T" type cage often made of synthetic resin for high-speed and vibration dampening, and the "P4S" precision class, indicating dimensional and running accuracy to ISO P4 standards, further refined with supplementary "S" indicating even tighter tolerances on specific characteristics. The "UL" suffix typically signifies a universal matching capability, allowing bearings to be mounted in sets without shims for simplified installation and preload management.

The primary advantage of the B7040-E-T-P4S-UL lies in its ability to deliver superior performance in high-speed, high-precision environments. The angular contact design effectively handles both radial and axial loads, crucial in spindle applications. The high precision class, particularly the P4S level, ensures minimal runout and vibration, contributing to improved machining accuracy and surface finish of workpieces. The optimized internal geometry and advanced cage material facilitate higher permissible speeds and reduce heat generation, extending bearing life and maintaining consistent performance over prolonged operation. Furthermore, the universal matching feature simplifies assembly and allows for optimized preload settings, tailoring the bearing arrangement to specific application needs for maximized stiffness and damping.

Due to its exceptional precision and speed capabilities, the B7040-E-T-P4S-UL spindle bearing finds its main applications in high-performance machine tools. Specifically, it is ideal for main spindles in CNC milling machines, machining centers, and grinding machines where demanding operations require consistently accurate and smooth rotation. Beyond machine tools, these bearings can be utilized in high-speed spindles for woodworking machinery, precision measuring equipment, and other applications demanding low vibration, high rotational accuracy, and reliable performance at elevated speeds. Its robust design and ability to handle combined loads also make it suitable for robotic arms and other automation equipment requiring precise and controlled movements.

Hot Tags: b7040-e-t-p4s-ul bearing, b7040-e-t-p4s-ul bearing suppliers, Double Row Deep Groove Ball Bearing, Roller Bearing, 7328B Angular Contact Ball Bearings, Split Bearings 01B60M, Brass Cage Split Roller Bearing 02B80M, HKT Split 100B100M Roller Bearings