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Linear Ball Bushings - Linear/Rotating, single, no seals. ST, ST-B Series.

On Sale Till 15/12/2024
Volume Discount

THK

Hardened shaft, recommended for use with outer diameter tolerance (k5, m5, n5 or p5).

[Features]
· In the ST type, the balls and ball cage are embedded in the inner side the of outer cylinder, which has been precision ground to ensure a cylindrical form
· The balls are arranged in a staggered form to that the load is equally distributed
· The ball cage is a machined cage made out of lightweight and highly rigid light alloy.
· A slide ring and retainer ring are provided on two sides of the internal diameter of the outer cylinder to prevent overrun of the ball cage.
· With this structure, it is possible to achieve rotating, linear and mixed action with a low friction coefficient.
· Stroke length can be up to double the range of movement of the ball cage within the outer cylinder
· Suitable for a wide range of applications where it is necessary to obtain high accuracy at a low price, including the ink roll parts of a printing machine, the work chuck of a punching press work, press feeders, the work head of an electric discharge machine, the correction device of a take-up roll, textile machines, strain measuring equipment, optical measuring device spindle, copiers, etc.
· Enables rotation with extremely low friction coefficient (=0.0006 to 0.0012) due to point contacts between the balls and ball rolling surface, and the separation of the balls within the ball cage.
· Since the cross-sectional profile is simply the combination of the thin-walled outer cylinder and the balls, the outer diameter of this bearing is small and it is suitable for lightweight and space-saving compact designs.

Part Number

Configured Part Number is shown.

Product TOP

: 30; 45; 60

Part Number
ST6
ST8
ST8B
ST10
ST10B
ST12
ST12B
ST16
ST16B
ST20
ST20B
ST25
ST30
ST30B
ST35
ST35B
ST40
ST40B
ST45
ST45B
ST50
ST50B
ST55
ST55B
ST60
ST60B
ST70
ST70B
ST80
ST80B
ST90
ST90B
ST100
ST100B

Minimum order quantity	Volume Discount	Days to Ship	RoHS	For Shaft Size (mm)	Overall Length L (mm)	O.D. D (mm)	Basic Dynamic Load Rating (Details) (N)	Basic Static Load Rating (N)	Max. Stroke (mm)
1 Piece(s)		8 Days or more	10	6	19	12	0.98	0.23	14
1 Piece(s)	Available	Same day Stock	10	8	24	15	0.98	0.27	24
1 Piece(s)		15 Days or more	10	8	24	15	2.06	0.55	8
1 Piece(s)		Same day Stock	10	10	30	19	2.35	0.62	30
1 Piece(s)		8 Days or more	10	10	30	19	4.61	1.27	8
1 Piece(s)		8 Days or more	10	12	32	23	4.02	1.08	32
1 Piece(s)		15 Days or more	10	12	32	23	8.14	2.25	8
1 Piece(s)	Available	Same day Stock	10	16	37	28	4.02	1.27	40
1 Piece(s)		8 Days or more	10	16	37	28	8.04	2.65	16
1 Piece(s)		15 Days or more	10	20	45	32	4.12	1.57	54
1 Piece(s)	Available	15 Days or more	10	20	45	32	8.33	3.24	28
1 Piece(s)	Available	Same day Stock	10	25	45	37	4.12	1.76	54
1 Piece(s)		8 Days or more	10	30	65	45	9.31	4.12	82
1 Piece(s)		8 Days or more	10	30	65	45	18.7	8.14	44
1 Piece(s)		15 Days or more	10	35	70	52	9.41	4.51	92
1 Piece(s)		15 Days or more	10	35	70	52	18.7	9.02	54
1 Piece(s)		15 Days or more	10	40	80	60	12.5	6.18	108
1 Piece(s)		8 Days or more	10	40	80	60	25	12.4	66
1 Piece(s)	Available	15 Days or more	10	45	80	65	12.6	6.76	108
1 Piece(s)		15 Days or more	10	45	80	65	25.2	13.5	66
1 Piece(s)		15 Days or more	10	50	100	72	16.3	8.82	138
1 Piece(s)		8 Days or more	10	50	100	72	32.5	17.7	88
1 Piece(s)		47 Days or more	10	55	100	80	16.6	9.71	138
1 Piece(s)		15 Days or more	10	55	100	80	33	19.3	88
1 Piece(s)		15 Days or more	10	60	100	85	16.8	10.5	138
1 Piece(s)		15 Days or more	10	60	100	85	33.6	21	88
1 Piece(s)		15 Days or more	10	70	100	95	16.9	11.7	138
1 Piece(s)		15 Days or more	10	70	100	95	33.8	23.3	88
1 Piece(s)		16 Days or more	10	80	100	110	21.3	15.3	132
1 Piece(s)		15 Days or more	10	80	100	110	42.5	30.6	76
1 Piece(s)		47 Days or more	10	90	100	120	21.7	16.9	132
1 Piece(s)		15 Days or more	10	90	100	120	43.3	33.7	76
1 Piece(s)		15 Days or more	10	100	100	130	22	18.3	132
1 Piece(s)		15 Days or more	10	100	100	130	43.9	36.8	76

Basic Information

TYPE	Straight	Motion	Linear Motion/Rotary Motion	Type	Standard

Configure

34 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Stock

- Stock Item Only
Clear

Specification/Dimensions

For Shaft Size(mm)
6

8

10

12

16

20

25

30

35

40

45

50

55

60

70

80

90

100
Clear
Overall Length L(mm)
19

24

30

32

37

45

65

70

80

100
Clear
O.D. D(mm)
12

15

19

23

28

32

37

45

52

60

65

72

80

85

95

110

120

130
Clear
Max. Stroke(mm)
8

14

16

24

28

30

32

40

44

54

66

76

82

88

92

108

132

138
Clear
type
- ST
- ST-B
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

8 Days or Less

15 Days or Less

16 Days or Less

47 Days or Less
Clear

Specify Alterations

Consult the THK Technical Support Site as well when making selections.
The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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