Product Description
SAF Type Helical Worm Gearbox with NEMA Flange
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Input Configurations |
Direct motor coupled |
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With IEC B5/B14 motor flange |
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With IEC B5/B14 motor mounted |
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With CHINAMFG input shaft |
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Output Configurations
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CHINAMFG output shaft |
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CHINAMFG output shaft with flange |
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Hollow output shaft |
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Hollow output shaft with flange |
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Variants of the Helical Worm Gear Unit Series S / SF / SA / SAF |
Foot- or flange-mounted |
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B5 or B14 flange-mounted |
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CHINAMFG shaft or hollow shaft |
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Hollow shaft with keyed connection, shrink disk, splined hollow shaft, or Torque Arm |
Technical Data:
| Housing material | Cast iron/Ductile iron |
| Housing hardness | HBS190-240 |
| Gear material | 20CrMnTi alloy steel |
| Surface hardness of gears | HRC58°~62 ° |
| Gear core hardness | HRC33~40 |
| Input / Output shaft material | 42CrMo alloy steel |
| Input / Output shaft hardness | HRC25~30 |
| Machining precision of gears | accurate grinding, 6~5 Grade |
| Lubricating oil | GB L-CKC220-460, Shell Omala220-460 |
| Heat treatment | tempering, cementiting, quenching, etc. |
| Efficiency | 94%~96% (depends on the transmission stage) |
| Noise (MAX) | 60~68dB |
| Temp. rise (MAX) | 40°C |
| Temp. rise (Oil)(MAX) | 50°C |
| Vibration | ≤20µm |
| Backlash | ≤20Arcmin |
| Brand of bearings | China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, NSK. |
| Brand of oil seal | NAK — ZheJiang or other brands requested |
Features
High modular design, flexible mounting mode.
Integrated casting housing,compact dimension, stable transmitting and low noise level.
Perfect oil leakage preventing makes the good sealings and can be used in wide range of industry.
Advanced gear grinding and modified profile, high loading support and more safe operation.
High efficiency and save power.
Save cost and low maintenance.
Specification
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Model |
Shaft Dia. mm |
Horizontal Center Height mm |
External Flange Dia. mm |
Power (kw) |
Ratio (i) |
Nominal Torque (Nm) |
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CHINAMFG Shaft |
Hollow Shaft |
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S/SF/SA/SAF37 |
ф20 |
ф20 |
88 |
0.12-0.55 |
24-204 |
100 |
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S/SF/SA/SAF47 |
ф25 |
ф30 / ф25 |
100 |
160 |
0.18-0.75 |
24-204 |
150 |
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S/SF/SA/SAF57 |
ф30 |
ф35 / ф30 |
112 |
200 |
0.75-1.5 |
24-204 |
250 |
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S/SF/SA/SAF67 |
ф35 |
ф45 /ф40 |
140 |
200 |
0.75-3 |
24-285 |
460 |
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S/SF/SA/SAF77 |
ф45 |
ф60 / ф50 |
180 |
250 |
0.75-7.5 |
24-385 |
1200 |
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S/SF/SA/SAF87 |
ф60 |
ф70 / ф60 |
225 |
350 |
1.1-11 |
24-389 |
2000 |
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S/SF/SA/SAF97 |
ф70 |
ф90 / ф70 |
280 |
450 |
1.5-18.5 |
24-389 |
3500 |
Company profile
Scenario
Packing
FAQ
Q1: I want to buy your products, how can I pay?
A: You can pay via T/T(30%+70%), L/C ,D/P etc.
Q2: How can you guarantee the quality?
A: One year’s warranty against B/L date. If you meet with quality problem, please send us pictures or video to check, we promise to send spare parts or new products to replace. Our guarantee not include inappropriate operation or wrong specification selection.
Q3: How we select models and specifications?
A: You can email us the series code (for example: RC series helical gearbox) as well as requirement details, such as motor power,output speed or ratio, service factor or your application…as much data as possible. If you can supply some pictures or drawings,it is nice.
Q4: If we don’t find what we want on your website, what should we do?
A: We offer 3 options:
1, You can email us the pictures, drawings or descriptions details. We will try to design your products on the basis of our
standard models.
2, Our R&D department is professional for OEM/ODM products by drawing/samples, you can send us samples, we do customized design for your bulk purchasing.
3, We can develop new products if they have good market. We have already developed many items for special using successful, such as special gearbox for agitator, cement conveyor, shoes machines and so on.
Q5: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.
Q6: How about your product delivery time?
A: Normally for 20’container, it takes 25-30 workdays for RV series worm gearbox, 35-40 workdays for helical gearmotors. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Motorcycle, Machinery, Agricultural Machinery |
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| Hardness: | Hardened Tooth Surface |
| Installation: | M1-M6 |
| Samples: |
US$ 224/Piece
1 Piece(Min.Order) | Order Sample SAF67-NEMA143TC-V-121.33-D45-A-M4
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Replacing Parts of a NEMA Gearbox vs. Replacing the Whole Unit
Replacing parts of a NEMA gearbox is a common practice if specific components are worn or damaged. However, it’s essential to consider factors like the availability of replacement parts, the cost-effectiveness of repairs, the overall condition of the gearbox, and the expertise required for the replacement. In some cases, replacing the whole unit might be more practical, especially if the gearbox has a history of issues or if the cost of repairs exceeds the cost of a new unit. Consulting with a gearbox specialist can help make an informed decision.
Lubrication for NEMA Gearbox
NEMA gearboxes require proper lubrication to ensure smooth operation and longevity. It’s recommended to use the lubricant specified by the manufacturer, typically a high-quality industrial gear oil. Properly fill the gearbox with the recommended lubricant, ensuring it reaches the correct level as indicated by the manufacturer. Regularly check and maintain the lubrication level according to the manufacturer’s guidelines to prevent overheating and wear.
Key Features of NEMA Gearboxes
NEMA gearboxes feature a standardized mounting interface that ensures compatibility with NEMA motors. They are designed to provide efficient power transmission, torque multiplication, and speed reduction. These gearboxes are constructed from durable materials, such as cast iron or aluminum, to withstand varying loads and conditions. They often include precision-machined gears for smooth operation and reduced noise. NEMA gearboxes come in various gear ratios to accommodate different speed and torque requirements. They also offer options for different mounting orientations and motor flange sizes. These features collectively make NEMA gearboxes versatile and suitable for a wide range of industrial applications.
editor by CX 2024-03-04
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