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FAR-B-S, Driven Rotating Nut

Rexroth's FAR driven nut allows for speeds not normally attainable with ball screw applications. In a traditional ball screw assembly, where the screw rotates, the speed is limited due to a whipping action of the screw. With the FAR, the screw remains stationary and the nut is rotated to achieve linear motion. This not only permits greater speeds, but also greater strokes. Rexroth's FAR nut is a great fit if your application requires high speeds and precision and also has the following characteristics:

- With preload 2% or 5% C

- Available on request

- Liquid-cooled screw

- Side drive with timing belt

- AC servomotor

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Helpful Tools

> Download Drive Units with Ball Screw Drives catalog

> Get Dimensions information from catalog

FAR-B-S, Driven Rotating Nut

Size d₀ x P x D_W - i	Part Number	Load Ratings dyn. C (N)	stat. C₀(N)	Speed V_max[m/min]
32 x 10R x 3.969 - 5	2532-301-01	31700	58300	30
32 x 20R x 3.969 - 3	2532-301-11	19700	33700	60
32 x 32R x 3.969 - 3	2532-301-21	19500	34000	96
40 x 10R x 6 - 5	2532-401-01	61500	109200	28
40 x 20R x 6 - 3	2532-401-31	37900	62800	56
40 x 40R x 6 - 3	2532-401-41	37000	62300	112
50 x 10R x 6 - 6	2532-501-01	73000	132000	27
50 x 20R x 6.5 - 5	2532-501-31	73000	132000	54
50 x 40R x 6.5 - 3	2532-501-41	46500	85900	108
63 x 10R x 6 - 6	2532-601-01	88800	197000	23
63 x 20R x 6.5 - 5	2532-601-11	83900	190300	46
63 x 40R x 6.5 - 3	2532-601-21	53400	114100	92

Definitions

d₀ = nominal diameter

P = lead (r = right-hand) (l = left-hand)

D_W= ball diameter

i = number of ball track turns