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ZKLN Series Spindle Bearings

The rolling elements of the ZKLN series spindle bearings are usually made of high-quality ceramics or special steel materials. After fine grinding, they have smooth surfaces and extremely high dimensional accuracy, effectively reducing the friction with the raceway, adapting to high-speed rotation and reducing heat generation.

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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]
	ZKLN50110-2RS-XL	50	110	54	-	-	-
	ZKLN5090-2RS-XL	50	90	34	-	-	-
	ZKLN4090-2RS-XL	40	90	46	-	-	-
	ZKLN4075-2RS-XL	40	75	34	-	-	-
	ZKLN3572-2RS-XL	35	72	34	-	-	-
	ZKLN3072-2RS-XL	30	72	38	-	-	-
	ZKLN3062-2RS-XL	30	62	28	-	-	-
	ZKLN2557-2RS-XL	25	57	28	-	-	-
	ZKLN2052-2RS-XL	20	52	28	-	-	-
	ZKLN1747-2RS-XL	17	47	25	-	-	-
	ZKLN1545-2RS-XL	15	45	25	-	-	-
	ZKLN1242-2RS-XL	12	42	25	-	-	-
	ZKLN1034-2RS-XL	10	34	20	-	-	-
	ZKLN0832-2RS-XL	8	32	20	-	-	-
	ZKLN0624-2RS-XL	6	24	15	-	-	-

Dentail

High-precision Rolling Elements：The rolling elements of the ZKLN series spindle bearings are usually made of high-quality ceramics or special steel materials. After fine grinding, they have smooth surfaces and extremely high dimensional accuracy, effectively reducing the friction with the raceway, adapting to high-speed rotation and reducing heat generation.

Precision Ring Design：The inner and outer rings are made of high-strength alloy steel and have gone through multiple precision machining processes, such as forging, turning, grinding and heat treatment. They possess excellent dimensional accuracy, roundness and surface hardness, and fit closely with the rolling elements to ensure stable operation.

Adaptable Cage：The cage selects appropriate materials according to the movement characteristics of the rolling elements. Commonly made of high-strength engineering plastics or lightweight alloys, its structure is optimized to accurately guide the movement of the rolling elements, avoid collisions between them and maintain dynamic balance, ensuring the smooth operation of the bearing under high-speed working conditions.

Ultra-high Speed Performance：Specially designed for high-speed spindles, it can withstand extremely high rotational speeds. It has small vibration and low noise during high-speed operation, meeting the stringent requirements of spindle rotational speeds for precision machining equipment and high-speed cutting machine tools, improving machining efficiency.

High-precision Support：The precise cooperation of all components results in extremely small radial and axial runouts, which can provide precise positioning for tools or workpieces, ensuring the precision of precision machining. It is often used in high-end manufacturing fields.

Long Service Life and Durability：With high-quality materials and exquisite craftsmanship, it has excellent fatigue resistance and wear resistance, reducing the downtime caused by frequent replacement of bearings and lowering the maintenance costs of the equipment, and extending the service life.

Application

The bearings can be used in the following industries

Machine Tool Machining：It is the core component of the spindles of modern machine tools such as CNC machining centers and high-speed grinding machines, ensuring high-speed and high-precision cutting of tools and machining high-quality parts.
Precision Manufacturing：In the fields of precision instruments and aerospace component manufacturing, it provides stable and reliable rotary support for precision assembly and ultra-precision machining.
Electronics Industry：Used in the high-speed rotating shafts of semiconductor manufacturing equipment, it meets the requirements of high-precision and high-efficiency production of tiny components of electronic products.