HIWIN - linear equipment

Heavy load supports.

The flanged bearing units SBK consist of a solid steel housing. Because of the used angular contact ball bearings with a 60° contact angle the bearing units can absorb heavy axial loads.

High rigidity and a minimum axial clearance is the result of the preload of the bearings by the housing and the cover plate. All bearing units are shipped with sealing, washers and lock nut.

Advantages:

• High accuracy
• High stiffness
• Heavy load applications due to 60° contact angle
• Suitable for heavy load applications, such as ballscrew supports for machine tools

Main dimensions

Part number	Ball screw	d	A	h	H1	L	L1	B	d1	E	X	Y	Z	I	3D (STP)
SBK-25-DF	32	25	89	51	53	66	71	160	57	130	18	26	2	4
SBK-25-DFD	32	25	89	51	53	81	71	160	57	130	18	26	2	4
SBK-30-DF	40	30	89	51	53	66	71	160	57	130	18	26	2	4
SBK-30-DFD	40	30	89	51	53	81	71	160	57	130	18	26	2	4
SBK-35-DF	40	35	96	52	54	66	71	160	69	130	18	26	2	4
SBK-35-DFD	40	35	96	52	54	81	71	160	69	130	18	26	2	4
SBK-40-DF	50	40	96	52	54	66	71	160	69	130	18	26	2	4
SBK-40-DFD	50	40	96	52	54	81	71	160	69	130	18	26	2	4

Technical specification

Part number	Dynamic capacity [kN]	Max. axial force [kN]	Preload [kN]	Axial rigidity [N/µm]	Starting torque [Nm]	M	D3	L3	Weight [kg]
SBK-25-DF	29.1	41.5	3.2	1000	0.29	M25x1.5	45	20	4.46
SBK-25-DFD	47.0	83.0	4.4	1500	0.40	M25x1.5	45	20	5.25
SBK-30-DF	29.8	44.0	3.4	1050	0.30	M30x1.5	50	20	4.35
SBK-30-DFD	48.5	88.0	4.6	1550	0.40	M30x1.5	50	20	5.09
SBK-35-DF	31.5	51.0	3.9	1200	0.35	M35x1.5	55	22	4.57
SBK-35-DFD	51.5	102.0	5.3	1750	0.46	M35x1.5	55	22	5.30
SBK-40-DF	32.5	53.0	4.0	1250	0.37	M40x1.5	60	22	4.60
SBK-40-DFD	52.5	106.0	5.4	1850	0.67	M40x1.5	60	22	5.15