Timing pulley
Product name | High Torque Timing Pulleys - 8YU |
Part number | GPA50YU8150-A-N30 |
Features | Circular Tooth Profile Pulleys with little backlash, suitable for positioning. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Low backlash, light weight pulley.
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Available sizes
■High torque timing pulley 8YU type
Material | Surface treatment | Included set screw material |
Pulley | Flange |
2017 Aluminum Alloy | 5052 Aluminum Alloy | Clear anodize | 304 Stainless Steel |
1045 Carbon Steel | Low Carbon Steel | − | Chromium-molybdenum steel (Black oxide) |
Black oxide |
■Number of teeth and shaft bore DIA.
Shape | Applicable belt width | Number of teeth | Pitch circle DIA. | Shaft bore DIA. |
With hub | 15・20・25 | 20-60 | φ50.93-φ152.79 | φ16-32 |
No hub |
Available sizes to produce vary depending on materials and shapes
Please see the product pages for details.
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Selection steps
■Timing pulley selection steps
* Timing pulley selection is made at the same time as the timing belt.
Automated selection tool is available to use.
http://fawos.misumi.jp/FA_WEB/pulley_us/
- Determining of usage conditions
- Designed power, rotational speed, rotation ratio, interim shaft distance, motion pattern, etc.)
↓
- Pulley (Belt) temporary selection
- Tooth profile・Belt width
↓
- Verification of specifications applicability
-
- Confirmation of calculated shaft distance, etc.
- Confirmation of belt tension and load
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Accuracy Info
■Timing pulley accuracy
Shaft bore tolerance: H7
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Technical calculations
■Technical calculations
https://sg.misumi-ec.com/pdf/tech/mech/US2010_fa_p3513_3534.pdf
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Ball spline
Product name | Ball Splines - Both Ends Tapped |
Part number | BSHS6-80-M3-N3 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Used for both linear and rotary motion at the same time
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Available sizes
■Ball spline (Both ends tapped)
Spline shaft | Material | 52100 Bearing Steel | 440C Stainless Steel |
Hardness | 58HRC~ | 55HRC~ |
Nut | Material | 4115 Alloy Steel | 440C Stainless Steel |
Hardness | 58HRC~ | 55HRC~ |
Shape | Round flange | ○ | ○ |
Compact flange | ○ | - |
Straight | ○ | ○ |
■Dimensions
Spline shaft | Nut |
Name No. | Shaft DIA. | Overall length | Pilot DIA. |
6 | φ6 | 60-400 | φ14 |
8 | φ8 | φ16 |
10 | φ10.4 | 90-600 | φ21 |
13 | φ13.4 | 100-600 | φ24 |
16 | φ16.6 | 110-600 | φ31 |
* Length selection range will vary according to material and nut configuration.
Please see the product pages for details.
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Selection steps
■Ball spline selection steps
- Determine application conditions
- (Load, Torque, Feed distance, Life)
↓
- Temporarily select ball spline specifications
- (Spline shaft DIA., spline shaft length, overall length are temporarily selected based on application conditions.)
↓
- Safety Check
-
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Accuracy Info
■Ball spline shaft accuracy
(μm)
Name No. | Spline shaft DIA. | Nut O.D. runout | Spline shaft center runout(Max.) |
(Max.) | Length | -200 | 201-315 | 316-400 | 401-500 | 501- |
6 | φ6 | 27 | 72 | 89 | 126 | 163 | - |
8 | φ8 |
10 | φ10.4 | 33 | 59 | 83 | 103 | 82 | 102 |
13 | φ13.4 | 39 | 56 | 71 | 83 | 62 | 75 |
16 | φ16.6 |
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Performance info.
■Ball spline rated loads
Name No. | Basic torque rating | Basic load rating |
Dynamic (Nm) | Static (Nm) | Dynamic (kN) | Static (kN) |
6 | 3.8 | 7 | 1.2 | 2.1 |
8 | 4.8 | 8.7 | 1.2 | 2.1 |
10 | 11 | 21 | 2.4 | 4.3 |
13 | 20 | 37 | 3.3 | 5.9 |
16 | 51 | 93 | 6.2 | 11.1 |
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Technical calculations
■Ball spline life calculations
Ball spline's running life is calculated with the formula below.
- L: Life (km)
- ft: Temperature factor
- fh: Hardness factor
- fp: Load rating ratio
- fw: Load factor
- L0: Rated life (50km)
- C: Basic dynamic load rating (N)
- F: Applicable radial load (N)
- Ct: Basic dynamic torque rating (N・m)
- T: Applicable torque (N・m)
Ball spline's life time is calculated with the formula below.
- Lh: Run hours (hr)
- L: Life (km)
- St: Stroke length
- n: Cycles per minute (cpm)
■Rated load ratio (fp)
Name No. | Spline shaft DIA. | Distributed load | Direct download |
10 | φ10.4 | 1 | 0.71 |
13 | φ13.4 | 1 | 0.71 |
16 | φ16.6 | 1 | 0.68 |
■Load factor (fw)
App. condition | Load factor (fw) |
No vibrations or shocks (Low speed 1~2 15m/min or less) | 1-2 |
Some vibrations and shocks (Med. speed 2~3 60m/min) | 2-3 |
Severe vibrations and shocks (High speed 3 and over 60m/min or over) | 3- |
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Small parallel gripper
Product name | Air Gripper - Parallel Type - |
Part number | ACHK6-D |
Features | Compact Type Pneumatic Grippers with high precision, high rigidity, strong retaining force |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable for gripping small rectangular workpiece
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Available sizes
■Small parallel gripper (Sensor mounted type)
Part name | Material | Surface treatment |
Main body | 5056 Aluminum Alloy | Clear anodize |
Jaws・attachment mounting | 1045 Carbon Steel | Nitriding treatment |
■Specifications and Dimensions
Operating method | Stroke | Cylinder I.D. | Overall width | Overall height | Overall thickness |
Single acting・Double acting | 4 | φ8 | 26 | 40.5 | 10 |
6 | φ12 | 30 | 45 | 16.4 |
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Accuracy Info
■Small parallel gripper selection steps
- Confirm Design Specifications
- (Confirm required stroke, workpiece weight, etc.)
↓
- Calculations of required gripping force
- 10~20 times the workpiece weight
(Varies depending on friction coefficient between the jaws and workpiece)
↓
- Selecting a model type and applicability confirmation
-
- ●Gripping method (O.D. gripping · I.D. gripping)
- ●Open/close operation method (Single acting ・ Double acting)
- ●Stroke
- ●Gripping points and gripping force
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Performance info.
■Small parallel gripper (Sensor mounted type) load info.
Stroke | Cylinder I.D. | Operating pressure range | Effective grip force(N) | Allowable static load rating (N) |
Single acting (Spring) | Dual acting | F1 | F2 |
4 | φ8 | 0.3~0.5MPa | 4.2(1) | 4.9 | 5 | 2.5 |
6 | φ12 | 10.4(1.9) | 12.2 | 10 | 5 |
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IDEA NOTE One actuator performs swinging and workpiece rotation.
Drive pulley rotates the gripper arm 90°-from one conveyor line to another. Since pulley ration is 2:1, part of the gripper arm rotates 180° (driven pulley translates the motion to ball spline and workpiece gripper).