BS/TAC Support Bearings for Precision Ball Screws

BS/TAC Ball screw support bearings

BS/TAC Ball screw support bearings are special thrust angular contact ball bearings for supporting the screw shaft of precision ball screws. Support bearings for precision ball screws also have contact seals. Common configurations are DB, DF, DT, etc. The contact angle of support bearings for precision ball screws is designed to be 60°, the steel balls are small in diameter and large in number, and the wall thickness of the inner and outer rings is thicker, which can simultaneously withstand large axial loads and a certain degree of radial loads. This series of products is commonly used in machine tool screw support parts, injection molding machines, and electric injection molding machines.

Product Details

Bearing		Dimensions(mm)			Basic loading		Limiting Speed		Weight
		d	D	B	Ca	Coa	Greas	Oil	≈
		mm			KN		r/min		kg
BS1547TN1	15TAC47	15	47	15	21.5	27	12000	17000	0.14
BS1747TN1	17TAC47	17	47	15	21.5	27	12000	17000	0.14
BS2047TN1	20TAC47	220	47	15	19.3	25	12000	17000	0.13
BS2562TN1	25TAC62	25	62	15	28.5	41.5	9000	13000	0.24
BS3062TN1	30TAC62	30	62	15	26	39	9000	13000	0.23
BS3072TN1	30TAC72	30	72	15	31	54	8000	11000	0.35
BS3572TN1	35TAC72	35	72	15	30	50	8000	11000	0.3
BS4072TN1	40TAC72	40	72	15	28	49	8000	11000	0.26
BS4090TN1	40TAC90	40	90	20	50	83	6300	8500	0.65
BS4575TN1	45TAC75	45	75	15	28.5	52	7500	10000	0.26
BS45100TN1	45TAC100	45	100	20	58.5	104	5600	75000	0.81
BS50100TN1	50TAC100	50	100	20	58.5	104	5600	75000	0.75
BS5590TN1	55TAC90	55	90	15	32.5	65.5	6300	85000	0.38
BS55100TN1	55TAC100	55	100	20	40.5	81.5	6000	8000	0.75
BS55120TN1	55TAC120	55	120	20	60	116	5000	6700	1.18
BS60120TN1	60TAC120	60	120	20	61	120	4800	6300	1.11
BS75110TN1	75TAC110	75	110	15	35.5	83	5000	6700	0.7
BS100150TN1	100TAC150	100	150	22.5	69.5	173	3800	5000	1.37

The support bearings for precision ball screws are characterized by high rigidity, high precision, small size, light weight, high precision and low torque. This series has high rigidity for axial loads and does not require other radial bearings and thrust bearings. The structure around the bearing can be designed to be compact and light, which is conducive to overall lightweighting. Since the appropriate preload required for use has been adjusted in advance, no complicated adjustment work is required during installation. The sealed bearings use light contact seals, and the contact lip and the inner ring seal groove are designed with a labyrinth design, which takes into account high-speed performance while achieving good sealing performance. It can prevent external foreign matter from invading and suppress internal grease splashing, which is more conducive to environmental protection. In addition, some models also provide non-contact seal ring bearings to achieve low torque and low temperature rise performance. Compared with the use of roller bearings, it can greatly reduce torque and improve precision.

Our company has professional sales and technical engineers who are responsible for providing users with technical consultation, technical services and product technical training on precision bearing information and installation and use. Perfect pre-sales, sales and after-sales services constitute a guarantee system for high-quality services, providing users with reliable bearing products and creating excellent user experience and rich benefits for every customer.

If you have any questions about products and services, please contact the company's service department directly.

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