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Rotary Nut Assembly Unit

The rotating nut assembly unit is a transmission system that converts the rotating motion
of the ball nut into the linear motion of the nut itself (or the ball screw). It is an extension of
ball screw pair, and its main components are composed of ball screw pair, rolling bearing
pair, nut holder, pre-tightening adjustment (locking) device, dust-proof device, lubricating oil
path, etc. The installation structure diagram is shown in Figure 1 below.

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Model:
XDK/XJD
Brand:
yi gong

Product Description

XDK Light Load Rotary Nut Assembly Unit

Specification code	Nominal diameter d	Nominal leads Pm	Lead screw outside diameter d₁	Number of load ball turns	Ball diameter Dw	Screw base diameter d₂	Nut mounting dimension													Basic loadrating of lead screw		Basic load rating of supporting bearing		Specification code
							D. (g6)	L	D₂	D₄	D₃ (h7)	P₁	P₂	B₁	B₂	B₃	M₁	D₈	t₁	Basic loadrating of lead screw		Basic load rating of supporting bearing
							D. (g6)	L	D₂	D₄	D₃ (h7)	P₁	P₂	B₁	B₂	B₃	M₁	D₈	t₁	dynamic load C_a (kN)	Static load C (kN)	dynamic load C_a (kN)	Static load C_o_a (kN)
XDK1616R-S3-2	16	16	16	2	2.778	8.8	48	45	35	64	36	56	25	6	21	10	4	4.5	14	5.2	8.3	6.5	9.3	XDK1616R-S3-2

XDK2020R-S3-2	20	20	20	2	3.175	17.7	56	52	39	72	43.5	64	31	6	21	11	5	4.5	18	7.0	12.0	7.1	12	XDK2020R-53-2

XDK2525R-S4-2	25	25	25	2	3.969	22.1	66	66	50	86	52	75	38	7	25	13	6	5.5	18	10.4	18.8	10.3	18.5	XDK2525R-S4-2

XDK3232R-S5-2	32	32	32	2	4.763	28.1	78	78	58	103	63	89	48	8	25	14	6	6.6	17	14.8	28.4	11.3	22.9	XDK3232R-S5-2

XJD Heavy Duty Rotary Nut Assembly Unit

Specification code	Nominal diameter d₀	Nominal leads Pno	Lead screw outside diameter d₁	Ball diameter D	Screw base diameter d₂	Number of load ball turns n	Dynamic load rating	Limiting axial load①	Nut mounting dimension										Synchronous pully (gear)mounting dimensions								Specification code
Specification code	Nominal diameter d₀	Nominal leads Pno	Lead screw outside diameter d₁	Ball diameter D	Screw base diameter d₂	Number of load ball turns n	C₂kN	Co₈MAXkN	L	D₁ (g6)	D2()	L₂	D₃	B	D₄	D₅	D₆	h	D₇	D₈ (g6)	L₃	b (N9)	L₄	L₅	Mc	t	Specification code
XJD6316R-S10-7	63	16	63	9.525	55.5	7	175	570	360	195	195	40	243	40	219	13.5	20	13	118	100	50	12	40	45.5	8	15	XJD6316R-S10-7
XJD6320R-S10-6	63	20	63	9.525	55.5	6	153	488	360	195	195	40	243	40	219	13.5	20	13	118	100	50	12	40	45.5	8	15	XJD6320R-S10-6

XJD8016R-S10-8	80	16	80	9.525	72.5	8	223	850	360	220	220	50	280	50	250	17.5	26	17.5	138	120	50	12	40	55.5	10	20	XJD8016R-S10-8
XJD8020R-S13-6	80	20	80	12.7	70.9	6	314.9	789	360	220	220	50	280	50	250	17.5	26	17.5	138	120	50	12	40	55.5	10	20	XJD8020R-S13-6
XJD8025R-S13-5	80	25	80	12.7	70.9	5	2686	656	360	220	220	50	280	50	250	17.5	26	17.5	138	120	50	12	40	55.5	10	20	XJD8025R-S13-5
XJD8032R-S13-4	80	32	80	12.7	70.9	4	220.8	523	360	220	220	50	280	50	250	17.5	26	17.5	138	120	50	12	40	55.5	10	20	XJD8032R-S13-4
XJD8040R-S13-3	80	40	80	12.7	70.9	3	171.4	391	360	220	220	50	280	50	250	17.5	26	17.5	138	120	50	12	40	55.5	10	20	XJD8040R-S13-3

XJD10016R-S10-8	100	16	97	10	89.7	8	249	1087	375	245	245	50	319	50	282	22	33	21.5	165	145	50	12	40	68	12	25	XJD10016R-S10-8
XJD10020R-S13-7	100	20	97	12.7	87.8	7	396.6	1144	375	245	245	50	319	50	282	22	33	21.5	165	145	50	12	40	68	12	25	XJD10020R-S13-7
XJD10025R-S16-5	100	25	97	15.875	85.5	5	402.7	966	375	245	245	50	319	50	282	22	33	21.5	165	145	50	12	40	68	12	25	XJD10025R-S16-5
XJD10032R-S16-4	100	32	97	15.875	85.5	4	331.5	771	375	245	245	50	319	50	282	22	33	21.5	165	145	50	12	40	68	12	25	XJD10032R-S16-4
XJD10040R-S16-3	100	40	97	15.875	85.5	3	257.9	577	375	245	245	50	319	50	282	22	33	21.5	165	145	50	12	40	68	12	25	XJD10040R-S16-3

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