HIWIN Ball screw bearings

Hiwin Ball screw bearings

Feature | Hiwin Ball screw bearings

• Excellent axial rigidity.
• Excellent tolerance control offers customers flexible combinations of bearing arrangements, to meet the specific request of customers.
• HIWIN provide total solution service, bearings can be ordered with HIWIN ballscrews.

Code | Hiwin Ball screw bearings

Standard Table | Hiwin Ball screw bearings

Nominal I.D. or O.D. (mm)		Inside diameter deviations		Outside diameter deviations		Deviations of width		Outer or inner ring axial run out
		△dmp		△Dmp		△Bs		Sea• Sia
Over	Include	Upper Limit	Lower Limit	Upper Limit	Lower Limit	Upper Limit	Lower Limit	Max
10	18	0	-4	-	-	0	-80	2.5
18	30	0	-5	-	-	0	-120	2.5
30	50	0	-6	0	-6	0	-120	2.5
50	80	0	-7	0	-7	0	-150	2.5
80	120	0	-8	0	-8	0	-200	2.5

Shaft Table | Hiwin Ball screw bearings

Shaft dia./ Bearing bore dimension (mm)		Tolerance of shaft dia.		Tolerance of bearing bore
		h5		H6
Over	Include	Upper Limit	Lower Limit	Upper Limit	Lower Limit
10	18	0	-8	-	-
18	30	0	-9	-	-
30	50	0	-11	+16	0
50	80	0	-13	+19	0
80	120	0	-15	+22	0

Dimension | Hiwin Ball screw bearings

Specification			Main dimensions (mm)
Open type	with dust proof cap (contact type)	with dust proof cap (non-contact type)	d	D	B	r(min)	r1(min)
15 BSB 47	15 BSB 47 WW	15 BSB 47 UU	15	47	15	1	0.6
17 BSB 47	17 BSB 47 WW	17 BSB 47 UU	17	47	15	1	0.6
20 BSB 47	20 BSB 47 WW	20 BSB 47 UU	20	47	15	1	0.6
25 BSB 62	25 BSB 62 WW	25 BSB 62 UU	25	62	15	1	0.6
30 BSB 62	30 BSB 62 WW	30 BSB 62 UU	30	62	15	1	0.6
35 BSB 72	35 BSB 72 WW	35 BSB 72 UU	35	72	15	1	0.6
40 BSB 72	40 BSB 72 WW	40 BSB 72 UU	40	72	15	1	0.6

Specifications | Hiwin Ball screw bearings

Basic dynamic load rating (Note 1)	Max axial load (Note2)	Shaft diameter (mm)	Allowable speed (rpm)	Other dimensions (mm)
Ca (kN)	C0a (kN)			d1	d2	D1	D2
21.9	26.6	Ø20	6000	27.3	34	34.2	39.6
21.9	26.6	Ø25 ~ Ø28	6000	27.3	34	34.2	39.6
21.9	26.6	Ø25 ~ Ø28	6000	27.3	34	34.2	39.6
29.2	43	Ø30 ~ Ø36	4300	39.6	47.2	47.5	53.3
29.2	43	Ø40	4300	39.6	47.2	47.5	53.3
31.5	52	Ø45	3600	49.3	57.1	57.4	63.2
31.5	52	Ø50	3600	49.3	57.1	57.4	63.2

1. For the axial load capacity of multiplex arrangements, please refer to the basic dynamic load rating in the "Bearing performance" table.
2. In applications with multiplex arrangements, the value in the this table will be multiplied accrodingly.