Timing Belt
Product name | Timing Belts - MXL / XL / L / H |
Part number | TUN165L050 |
Features | General purpose timing belts for transmission. Although some tooth fabrics for MXL and XL rubber belts are changed to comply with the bear-back specifications, it does not affect the performance. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Transmit torque from driving to driven pulley.
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Risk info.
A pulley layout enabling replacements
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Available sizes
■Timing Belts - MXL / XL / L / H
Material | MXL | XL | L | H |
Tooth surface cover | Tooth rubber | Core wire |
Nylon canvas | Chloroprene Rubber | Glass fiber cord S/Z Alternately Twisted Continuous | ○ | ○ | ○ | ○ |
Polyurethane | Polyurethane | MXL: Kevlar XL・L: Steel cord | ○ | ○ | ○ | - |
■Reference dimensions
Belt type | Pitch | Belt width | Belt length reference |
MXL | 2.032 | 4.8, 6.4, 9.5, 12.7 | 100-1100 |
XL | 5.08 | 6.4, 7.9, 9.5, 12.7 | 200-2100 |
L | 9.525 | 12.7, 19.1, 25.4, 38.1 | 300-1800 |
H | 12.7 | 19.1, 25.4, 38.1, 50.8 | 600-4300 |
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Selection steps
■Timing belt selection procedure
* Timing belt selection is made together with timing pulley
Automated selection tool is available to use.
http://fawos.misumi.jp/FA_WEB/pulley_us/
- Determining of usage conditions
- Designed power・Rotational speed・Interim shaft distance・motion pattern, etc.
↓
- Belt (pulley) interim selection
- Belt type·Belt width
↓
- Verifying specification compatibility
-
- Verifying calculated shaft distance, etc.
- Verifying tension and load
Performance info.
■Load info. of timing belt
Belt type | Small pulley rotational speed(rpm) | Designed power(kW) |
MXL、XL、L、H、T5、T10 | 10-20000 | 0.01-800 |
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Timing Pulley
Product name | Timing Pulleys L Type |
Part number | ATPA19L050-A-N30 |
Features | New! METRIC/ INCH Bores Available! |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Transfer rotary motion. Aluminum type selected for weight reduction purposes.
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Risk info.
Accuracy degradation due to wear over time.
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Available sizes
■Timing Pulleys L Type
Material | Surface treatment | Tooth type/Belt width |
MXL | XL | L | H |
Pulley | Flange | 4.8 | 6.4 | 9.5 | 12.7 | 6.4 | 7.9 | 9.5 | 12.7 | 12.7 | 19.1 | 25.4 | 38.1 | 19.1 | 25.4 | 38.1 | 50.8 |
MXL、XL: 2017 Aluminum Alloy L、H: 7075 Aluminum Alloy | 5052 Aluminum Alloy | Clear anodize | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
Black anodize | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
Hard anodize | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
Electroless nickel plating | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
1045 Carbon Steel | Low Carbon Steel | − | - | ○ | ○ | - | ○ | - | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
Black oxide | - | ○ | ○ | - | ○ | - | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
Electroless nickel plating | - | ○ | ○ | - | ○ | - | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
304 Stainless Steel | 304 Stainless Steel | - | - | ○ | ○ | - | ○ | - | ○ | ○ | - | - | - | - | - | - | - | - |
■Pulley number of teeth and shaft bore DIA.
Belt type | Shape | Number of teeth | Pitch circle DIA. | Shaft bore DIA. |
MXL | K, A, B | 14-72 | φ9.6-46.57 | φ3-35 |
XL | A, B | 10-72 | φ16.17-116.43 | φ4-80 |
L | A, B, D | 10-72 | φ30.32-218.30 | φ6-100 |
H | A, B, D | 14-72 | φ58.60-291.06 | φ12-100 |
K: With collar
A: No hub
B: With hub
D: With hub Relieved
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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
- Design power・Rotational speed・Rotation ratio・Interim shaft distance, Motion pattern, etc.
↓
- Temporary selection of pulley (Belt)
- Tooth profile・Belt width
↓
- Verifying specification compatibility
-
- Verifying calculated shaft distance, etc.
- Verifying tension·Load
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Accuracy Info
■Timing pulley accuracy
Shaft bore tolerance: H7
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Bearings with Housing
Product name | Bearings with Housings - Standard Length, Double Bearings, Retained |
Part number | BGRBB6007ZZ-50 |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Compact double bearing type with high bearing performance
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Available sizes
■Bearings with Housings - Standard Length, Double Bearings, Retained
Flange Shape | Material | Surface treatment |
Bearing | Housing | Retaining ring | Housing |
Round type Square type Compact type | Steel | 1045 Carbon Steel | Spring steel | Black oxide |
304 Stainless Steel | Electroless nickel plating |
| 2017 Aluminum Alloy | 304 Stainless Steel | Clear anodizing |
Stainless |
304 Stainless Steel | − |
■Sizes
Shaft bore DIA. | Bearing part number | Seal | Overall length | Pilot O.D. |
φ30 | 6806 | Double shielded Non-contact rubber seal Contacting rubber seal | 35 | 50 | φ50 |
6906 | 35 | 50 | φ54 |
6006 | 40 | 60 | φ62 |
6206 | 50 | 60 | φ70 |
φ35 | 6007 | 50 | 60 | φ70 |
6207 | 60 | 80 | φ84 |
φ40 | 6008 | 60 | 70 | φ78 |
6208 | 60 | 80 | φ92 |
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Accuracy Info
■Accuracy of bearing housing
Pilot O.D. tolerance: g7
Seating face - Pilot perpendicularity: 0.01
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Ball Spline
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable for a transmission element when linear and rotary motion are needed at the same time.
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Available sizes
■Ball Splines -Both Ends Stepped 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. |
10 | φ10.4 | 60-600 | φ21 |
13 | φ13.4 | 60-600 | φ24 |
16 | φ16.6 | 70-600 | φ31 |
For 440C Stainless Steel spline shaft max. overall length is 390mm.
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Selection steps
■Ball spline selection steps
- Determine application conditions
- (Load, Torque, Feed distance, Life)
↓
- Temporarily select ball spline specifications
- (Temporarily select spline shaft DIA., spline shaft length, overall length based on app. conditions)
↓
- Verify basic safety
-
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Accuracy Info
■Accuracy of ball spline shaft
(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- |
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 load rating
Name No. | Basic torque rating | Basic load rating |
Dynamic (Nm) | Static (Nm) | Dynamic (kN) | Static (kN) |
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 running life is calculated with the formula below.
- L: Life (km)
- ft: Temp. 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 life time is calculated with the formula below.
- Lh: Run hours (hr)
- L: Life (km)
- St: Stroke length
- n: Number of cycles per minute (cpm)
■Load rating 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)
Application conditions | Load factor (fw) |
No vibration 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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IDEA NOTE Transmit rotational power to the ball spline nut
This app. example uses a ball splines with flanged type nut.
Flanged nut is mounted on a hollow shaft, and rotation is transmitted via a pulley.