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Part Number Complete

ALS-055-Y-20-28N

Specification/Dimensions

Features
Backlash 0

Low Inertia Moment

Vibration Absorption

Shaft hole Unfinished
Clear
Allowable Misalignment
- No
- Angular Misalignment
- Eccentricity
- Axial Misalignment
Clear
type
- ALS
Clear
Hole diameter d1(Ø)
3

4

5

6

6.35

7

8

9

9.525

10

11

12

14

15

16

18

19

20

22

24

25

28

30

32

35

38

40

42

45

50

55

60
Clear
Hole diameter d2(Ø)
3

4

5

6

6.35

7

8

9

9.525

10

11

12

14

15

16

18

19

20

22

24

25

28

30

32

35

38

40

42

45

50

55

60
Clear
O.D.(Ø)
14

20

30

40

55

65

80

95

105
Clear
Full Length(mm)
22

30

35

66

78

90

114

126

140
Clear
Allowable Torque Range(N•m)
0.05~1.00

1.01~3.00

3.01~5.00

5.01~10.00

10.01~20.00

20.01~50.00

50.01~100.00

100～Less than 500
Clear
Max. Rotational Speed Range(r/min)
4001~10000

10001~78000
Clear
Body Material
- Aluminum
Clear
Allowable Torque(N•m)
0.31

0.42

0.54

0.65

1.2

1.6

2

2.1

2.2

2.6

3

3.4

4.7

5.4

6

7.4

7.5

8

10

16

20

35

38

41

48

51

54

61

67

68

70

75

79

89

95

96

108

114

121

151

190

194

265

310
Clear
Allowable Angular Misalignment(deg)
1
Clear
Allowable Lateral Misalignment(mm)
0.1

0.15

0.2
Clear
Allowable Lateral Misalignment Range(mm)
0.02~0.2
Clear
Maximum Rotation Speed(r/min)
4500

4800

5000

5900

6000

7000

7400

8700

10000

11900

15900

23800

34100
Clear
Shaft Hole Specifications
- Shaft hole processed products
Clear
Shaft hole finished
- Keyway + tap hole (d1 keyway not included)
- Keyway + Tap hole
- Round hole+tap hole
Clear
Keyway Standard
d1, d2: new JIS

d1, d2: new standard motor compatible

d1: new JIS / d2: new standard motor compatible

d1: new standard motor compatible / d2: new JIS

d1, d2: old JIS (2-type)

d1: new JIS / d2: old JIS (2-type)

d1: new standard motor compatible / d2: old JIS (2-type)

d1: old JIS (2-type) / d2: new JIS

d1: old JIS (2-type) / d2: new standard motor compatible
Clear
CAD
- 2D
Clear

Days to Ship

All

13 Day(s) or Less

19 Day(s) or Less

21 Day(s) or Less
Clear

Specify Alterations

Star FlexALS-Y (ALS-055-Y-20-28N)

Brand :

Order Qty :
Total Price :

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Days to ship :

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Product Description

· ALS-Y models High performance STARFLEX PULLEY MIKI.
· Shaft Tightening Method: Set Screw Type
· Application: Encoder, Stepping Motor.
· Hub material: Aluminum Alloy.
· Spacer Element material: Polyurethane elastomer.
· Accessories: Hexagon head set screw material: Alloy steel use Surface finishing is Black coating.
· Nominal torque: : 1.2 to 310 [N.m].
· Operating Temperature Range: -30 to 80 °C
· These are JIS A tight-fit models that have a shore hardness of 90 and are equipped with a good balance of torque transmission performance, flexibility, and responsiveness.

: 30; 45; 60

Part Number
ALS-055-Y-20-28N

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Hole diameter d1 (Ø)	Hole diameter d2 (Ø)	O.D. (Ø)	Full Length (mm)	Allowable Torque Range (N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range (r/min)	Body Material	Allowable Torque (N•m)	Allowable Angular Misalignment (deg)	Allowable Lateral Misalignment (mm)	Allowable Lateral Misalignment Range (mm)	Maximum Rotation Speed (r/min)	Allowable Axial Clearance (±) (mm)	Moment of Inertia (kg･m²)	Shaft Hole Specifications	Shaft hole finished	Keyway Standard
	₹ 5,111.00	1 Piece(s)		19 Day(s) or more	10	20	28	55	78	20.01~50.00	Backlash 0 / Low Inertia Moment / Vibration Absorption	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	35	1	0.15	0.02~0.2	8700	0~+1.4	1.66×10^-4	Shaft hole processed products	Keyway + Tap hole	d1: old JIS (2-type) / d2: new standard motor compatible

Basic Information

Type	Jaw Type	Application	Standard / Servo Motor / Stepping Motor / Encoder	Product Category	Coupling body
Buffer Material	Polyurethane Resin	Operating Temperature Range(°C)	-30::80

Please check the type/dimensions/specifications of the part ALS-055-Y-20-28N in the Star FlexALS-Y series.

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Product variants

Part Number
ALS-014-Y-3-5
ALS-014-Y-3-6
ALS-014-Y-3-6.35
ALS-055-Y-20B-20B
ALS-055-Y-20B-22B
ALS-055-Y-20B-24B

Standard Unit Price	Minimum order quantity	Days to Ship	RoHS	Hole diameter d1 (Ø)	Hole diameter d2 (Ø)	O.D. (Ø)	Full Length (mm)	Allowable Torque Range (N•m)	Features	Allowable Misalignment	Max. Rotational Speed Range (r/min)	Body Material	Allowable Torque (N•m)	Allowable Angular Misalignment (deg)	Allowable Lateral Misalignment (mm)	Allowable Lateral Misalignment Range (mm)	Maximum Rotation Speed (r/min)	Allowable Axial Clearance (±) (mm)	Moment of Inertia (kg･m²)	Shaft Hole Specifications	Shaft hole finished	Keyway Standard
₹ 1,706.36	1 Piece(s)	19 Day(s) or more	10	3	5	14	22	1.01~3.00	Low Inertia Moment / Backlash 0 / Vibration Absorption	Angular Misalignment / Eccentricity / Axial Misalignment	10001~78000	Aluminum	1.2	1	0.1	0.02~0.2	34100	0~+0.6	1.91×10^-7	Shaft hole processed products	Round hole+tap hole	d1, d2: old JIS (2-type)
₹ 1,706.36	1 Piece(s)	19 Day(s) or more	10	3	6	14	22	1.01~3.00	Low Inertia Moment / Backlash 0 / Vibration Absorption	Angular Misalignment / Eccentricity / Axial Misalignment	10001~78000	Aluminum	1.2	1	0.1	0.02~0.2	34100	0~+0.6	1.91×10^-7	Shaft hole processed products	Round hole+tap hole	d1, d2: old JIS (2-type)
₹ 1,706.36	1 Piece(s)	19 Day(s) or more	10	3	6.35	14	22	1.01~3.00	Low Inertia Moment / Backlash 0 / Vibration Absorption	Angular Misalignment / Eccentricity / Axial Misalignment	10001~78000	Aluminum	1.2	1	0.1	0.02~0.2	34100	0~+0.6	1.91×10^-7	Shaft hole processed products	Round hole+tap hole	d1, d2: old JIS (2-type)
₹ 6,348.85	1 Piece(s)	19 Day(s) or more	10	20	20	55	78	50.01~100.00	Low Inertia Moment / Backlash 0 / Vibration Absorption	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	54	1	0.15	0.02~0.2	7000	0~+1.4	1.63×10^-4	-	-	-
₹ 6,348.85	1 Piece(s)	19 Day(s) or more	10	20	22	55	78	50.01~100.00	Low Inertia Moment / Backlash 0 / Vibration Absorption	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	54	1	0.15	0.02~0.2	7000	0~+1.4	1.63×10^-4	-	-	-
₹ 6,348.85	1 Piece(s)	19 Day(s) or more	10	20	24	55	78	50.01~100.00	Low Inertia Moment / Backlash 0 / Vibration Absorption	Angular Misalignment / Eccentricity / Axial Misalignment	4001~10000	Aluminum	54	1	0.15	0.02~0.2	7000	0~+1.4	1.63×10^-4	-	-	-

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