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Ball screw

The ball screw is a high-efficiency feed screw with the ball making a rolling motion between the screw axis and the nut. Compared with a conventional sliding screw, this product has drive torque of one-third or less, making it most suitable for saving drive motor power.

Basic dimensions				Basic load rating		Mass		Model
Shaft outer diameter	Lead	Ball center to center diameter	Thread minor diameter	dynamic	static	Nut	Shaft	Bearing No.
d [mm]	Ph [mm]	dp [mm]	dc [mm]	C [kN]	C0 [kN]	[kg]	[kg/m]
25	10	26.3	21.4	15.8	33	2	2.68	BNFN 2510A-2.5
25	10	26.3	21.4	15.8	33	1.43	2.68	BNF 2510A-2.5
25	10	26.3	21.4	15.8	33	1.87	2.68	BIF 2510A-5
28	6	28.75	25.2	17.5	49.4	1.7	3.89	BNFN 2806-5
28	6	28.75	25.2	17.5	49.4	1.13	3.89	BNF 2806-5
28	6	28.75	25.2	9.6	24.6	1	3.89	BIF 2806-5
28	6	28.75	25.2	17.5	49.4	1.57	3.89	BIF 2806-10
32	5	32.75	29.2	18.5	56.4	1.54	5.03	BNFN 3205-5
32	5	32.75	29.2	18.5	56.4	0.93	5.03	BNF 3205-5
32	5	32.75	29.2	10.2	28.1	0.87	5.03	BIF 3205-5
32	5	32.75	29.2	18.5	56.4	1.32	5.03	BIF 3205-10
32	6	33	28.4	25.2	70.4	2	4.63	BNFN 3206-5
32	6	33	28.4	25.2	70.4	1.2	4.63	BNF 3206-5
32	6	33	28.4	13.9	35.2	1.2	4.63	BIF 3206-5
32	6	33	28.4	25.2	70.4	1.76	4.63	BIF 3206-10
32	10	33.75	26.4	47.2	112.7	5.5	3.66	BNFN 3210A-5
32	10	33.75	26.4	47.2	112.7	2.8	3.66	BNF 3210A-5
32	10	33.75	26.4	26.1	56.2	2.8	3.66	BIF 3210A-5
36	10	37.75	30.5	50.1	126.4	6	5.03	BNFN 3610-5
36	10	37.75	30.5	50.1	126.4	3.4	5.03	BNF 3610-5
36	10	37.75	30.5	27.6	63.3	3.4	5.03	BIF 3610-5
36	10	37.75	30.5	50.1	126.4	4.8	5.03	BIF 3610-10
40	10	41.75	34.4	52.7	141.1	6.8	6.59	BNFN 4010-5
40	10	41.75	34.4	52.7	141.1	3.58	6.59	BNF 4010-5
40	10	41.75	34.4	29	70.4	3.58	6.59	BIF 4010-5
40	10	41.75	34.4	52.7	141.1	5.18	6.59	BIF 4010-10
40	12	42	34.1	61.6	158.8	6.3	6.39	BNFN 4012-5
40	12	42	34.1	61.6	158.8	4.2	6.39	BNF 4012-5
40	12	42	34.1	33.9	79.2	4.2	6.39	BIF 4012-5
40	12	42	34.1	61.6	158.8	6.24	6.39	BIF 4012-10