71900 series bearings

71956 thin walled angular contact ball bearing

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71956 thin walled angular contact ball bearing

Metric Dimensions (mm)
Bore d280mmBearing inner bore
Outer Dia. D380mmBearing outer diameter
Width B46mmBearing width
Radial Load (KN)
Dynamic Load Cr288.7KNBasic dynamic radial load rating
Static Load C0r554.6KNBasic static radial load rating
Speed & Torque
Grease Lubrication2600rpmLimiting speed for grease lubrication
Oil Lubrication4000rpmLimiting speed for oil lubrication
Other Parameters
Weight12.7kgBearing weight
71956 thin‑walled angular contact ball bearing keeps lightweight and compact advantages under extra‑large bore size, adapts to high‑speed light‑medium combined‑load working conditions. It is widely matched for large‑size light‑duty rotary frames and special‑layout industrial mechanical devices.

71900 series bearings feature a high-speed angular contact design with ultra-thin section dimensions, engineered to support combined radial and axial loads in an extremely lightweight, compact package with superior rotational accuracy. Available in open configurations only, with bore diameters ranging from 10mm to 50mm and an ultra-thin cross-section height of 6mm across all sizes. These bearings deliver ultra-compact design, significant weight reduction, exceptional high-speed capability, superior axial and radial rigidity, low heat generation, and reliable performance in precision applications, making them ideal for high-speed machine tool spindles, aerospace actuators, robotics joints, medical imaging equipment, semiconductor manufacturing devices, and ultra-precision mechanisms where both weight savings and high rotational accuracy are critical.

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📞 400-0635-880
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📱 +86-635-2513333
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