Support Unit For Ball screw

Support unit for ball screw helps to support each shaft-ends of

ball screw. We, S.I.M provides diverse options according to sizes,

loads and purposes for our customers’ best convenience.

Support Unit for Ball Screw (Index)

Installation Guide Made-To-Order

Support Unit (High load)

SWBK Series (Fixed side)

Support Unit For Ball Screw (SWBK)
Structure
Bearing Combinations
DF Combinations
DF Combinations
DFD Combinations
DFD Combinations
DFF Combinations
DFF Combinations
How to Order
①
Bearing
Combinations		 Mark Combinations
DF Double-row
DFD Triple-row
DFF Four-row
②
Surface
Treatment		 Mark Surface Treatment
No mark Black Oxide
RA Low temperature Black
Chrome Plating (Raydent)
Grease Model Standard LG2 AFE-CA AFF HT-Z1 NBU-15 XL-600
Mark No mark AG AE AF AH AN AX

※ For detailed information regarding grease replacement, please refer to the guideline pages in the catalogue under the “Made-To-Order Process.”

SWBK Series Specification
Model Bearing
Combinations		 Bearing Basic Dynamic
Load Rating
(N)		 Limiting Static
Axial Rating
(N)		 Permissible
Axial Load
(N)		 Preload
(N)		 Axial Rigidity
(N/㎛)		 Starting Torque
(N·cm)
SWBK-17 DF 17TAC 47C 23,000 26,600 18,600 1,450 630 14
SWBK-17 DFD 17TAC 47C 37,500 53,000 37,100 1,970 930 19
SWBK-20 DF 20TAC 47C 23,000 26,600 18,600 1,450 630 14
SWBK-20 DFD 20TAC 47C 37,500 53,000 37,100 1,970 930 19
SWBK-25 DF 25TAC 62C 29,900 40,500 28,400 2,280 850 21
SWBK-25 DFD 25TAC 62C 48,500 81,500 57,100 3,100 1,250 28
SWBK-30 DF 30TAC 62C 30,500 43,000 30,100 2,400 890 23
SWBK-30 DFD 30TAC 62C 50,000 86,000 60,200 3,260 1,310 30
SWBK-35 DF 35TAC 72C 32,500 50,000 35,000 2,750 1,030 27
SWBK-35 DFD 35TAC 72C 53,000 100,000 70,000 3,740 1,500 34
SWBK-35 DFF 35TAC 72C 53,000 100,000 70,000 5,490 2,060 43
SWBK-40 DF 40TAC 72C 33,500 52,000 36,400 2,860 1,080 28
SWBK-40 DFD 40TAC 72C 54,000 104,000 72,800 3,900 1,590 36
SWBK-40 DFF 40TAC 72C 54,000 104,000 72,800 5,730 2,150 46
SWBK-50 DF 50TAC 100C 66,000 72,800 51,000 4,650 1,410 42
SWBK-50 DFD 50TAC 100C 107,000 145,600 101,900 6,320 2,100 57
SWBK-50 DFF 50TAC 100C 107,000 145,600 101,900 9,120 2,820 82

※The bearing brand may be subject to change with the same level products according to supplying conditions.

Recommended Shape Of Ball Screw Shaft-End (Fixed Side)
Dimensions (mm) Lock-nut
d A Model E S Model Size
M x pitch
Ø25 – Ø28 17 SWBK-17 DF 81 23 HLRN-17 M17 x 1.0
DFD 96
20 SWBK-20 DF 81 23 HLRN-20 M20 x 1.0
DFD 96
Ø30 – Ø36 25 SWBK-25 DF 89 26 HLRN-25 M25 x 1.5
DFD 104
Ø40 30 SWBK-30 DF 89 26 HLRN-30 M30 x 1.5
DFD 104
HBK-30 89 26
Ø45 35 SWBK-35 DF 90 28 HLRN-35 M35 x 1.5
DFD 105
DFF 120
Ø50 – Ø55 40 SWBK-40 DF 92 30 HLRN-40 M40 x 1.5
DFD 107
DFF 122
HBK-40 101 30
Ø63 – Ø70 50 SWBK-50 DF 117 34 HLRN-50 M50 x 1.5
DFD 137
DFF 157
HBK-50 111 34