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BNR10/19 Ultra High Speed Spindle Bearings

The BNR10/19 Ultra High Speed Spindle Bearings are specifically designed for extreme rotational speed requirements. They can operate stably at ultra-high speeds for a long time, perfectly meeting the stringent demands of cutting - edge fields such as aircraft engines and high - speed electric spindles in high - end precision machine tools.

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	Type	Main dimensions			Rated load		Rated speed
					Dynamics	Static	Speed limit
Mail		d[mm]	D[mm]	B[mm]	C[kN]	C₀[kN]	[r/min]
	65BNR10S 2RZ	65	100	18	16.2	14.8	24300.0
	65BNR10X 2RZ	65	100	18	16.2	14.8	40000.0
	70BNR10H 2RZ	70	110	20	22.3	19.8	31200.0
	70BNR10S 2RZ	70	110	20	22.3	19.8	22300.0
	70BNR10X 2RZ	70	110	20	22.3	19.8	38700.0
	75BNR10H 2RZ	75	115	20	22.6	20.7	29500.0
	75BNR10S 2RZ	75	115	20	22.6	20.7	21100.0
	75BNR10X 2RZ	75	115	20	22.6	20.7	34800.0
	80BNR10H 2RZ	80	125	22	26.5	24.5	27400.0
	80BNR10S 2RZ	80	125	22	26.5	24.5	19600.0
	80BNR10X 2RZ	80	125	22	26.5	24.5	32200.0
	85BNR10H 2RZ	85	130	22	26.8	25.7	26100.0
	85BNR10S 2RZ	85	130	22	26.8	25.7	18700.0
	85BNR10X 2RZ	85	130	22	26.8	25.7	30700.0
	90BNR10H 2RZ	90	140	24	35.0	33.0	24400.0
	90BNR10S 2RZ	90	140	24	35.0	33.0	17400.0
	90BNR10X 2RZ	90	140	24	35.0	33.0	28700.0
	95BNR10H 2RZ	95	145	24	35.5	34.5	23400.0
	95BNR10S 2RZ	95	145	24	35.5	34.5	16700.0
	95BNR10X 2RZ	95	145	24	35.5	34.5	27500.0

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Dentail

Made of Advanced Materials: Special high-performance alloys are selected, which possess outstanding strength and toughness. They can endure the tremendous centrifugal force and frequent impacts at ultra-high rotational speeds, ensuring the firm and stable structure of the bearing.
Precision Ball Design: The balls are treated with special processes, featuring ultra-smooth surfaces and extremely high hardness. This significantly reduces the friction coefficient and wear, facilitating ultra-high-speed and smooth rotation.
Optimized Cage Structure: The cage is mostly made of lightweight and high-strength composite materials. The carefully designed structure accurately guides the movement of the balls, preventing collisions and maintaining excellent dynamic balance during high-speed operation.
Ultra-precision Ring Process: The rings undergo multiple ultra-precision grinding and heat treatment processes. The form and position tolerances such as roundness and cylindricity are extremely small, and they fit closely with the balls to ensure extremely high rotational accuracy.

Application

The bearings can be used in the following industries

Aerospace: The core rotating components of aircraft engines and the high-speed attitude adjustment mechanisms of aircraft rely on it to achieve high-speed and precise operation, ensuring flight safety and efficiency.
High-end Manufacturing: For example, the high-speed electric spindles of precision CNC machining centers and the high-speed rotating units of semiconductor manufacturing equipment help achieve high-precision and high-efficiency production.
New Energy Vehicles: In the high-speed bearing parts of the drive motors, it can adapt to the working conditions of frequent start-stop and high rotational speeds, improving the power performance and cruising range of the vehicles.