KAF Series Hollow Shaft Output Helical Gearbox with Flange-Mounted

The KAF Series Hollow Shaft Output Helical Gearbox with Flange-Mounted is a solid choice for anyone needing a dependable power transmission solution. This gearbox stands out with its hollow shaft output, which makes connecting to other shafts a breeze, and its flange-mounted design that pairs easily with motors. Whether you’re after a rugged helical bevel gearbox or a versatile helix gearbox for tough industrial jobs, the KAF Series delivers. Built to handle a range of challenges, it’s perfect for setups where space and efficiency matter. If you’re looking for a bevel helical gear box that combines strength with flexibility, this is a great fit.
Crafted with practical engineering, the KAF Series fits into busy workshops or large factories alike. Its design focuses on getting the job done without fuss, making it a favorite for those who value reliability. The flange-mounted setup simplifies upgrades, while the hollow shaft output opens up new ways to link with your machinery. For anyone needing a helical bevel gear unit that works hard and lasts, this gearbox is worth a closer look.
Technical Specifications of KAF Series Gearbox
These specs show the KAF series helical gearbox’s versatility, handling everything from light tasks to heavy-duty jobs. The cast iron housing adds toughness, while the wide torque range meets diverse needs.
| Product name: | KAF series helical bevel gearbox |
| Model: | KAF37/47/57/67/77/87/97/107/127/157/167/187 |
| Mounting ways: | Foot mounted and flange mounted |
| Input ways: | Motor input, AM (IEC) flange input and shaft input |
| Output way: | Solid shaft output or hollow shaft output |
| Efficiency: | over 95% |
| Housing material: | HT250 high-strength cast iron |
| Gear material: | 20CrMnTi |
| Surface hardness of gears: | HRC58-62 |
| Input/Output shaft: | 40Cr steel |
| Heat treatment: | Carburizing and quenching |
| Bearing: | C&U or another brand |
| Oil seal: | NAK or another brand |
| Lubricating oil: | Gear oil |
| Packing: | Pywood case |
| Size | 37 | 47 | 57 | 67 | 77 | 87 | 97 | 107 | 127 | 157 | 167 | 187 |
| Structure | K KA KF KAF KAZ KAT KAB | |||||||||||
| Input power (kW) |
0.18-3.0 | 0.18-3.0 | 0.18-5.5 | 0.18-5.5 | 0.37-11 | 0.75-22 | 1.1-30 | 3-45 | 7.5-90 | 11-160 | 00 | 18.5 |
| Ratio | 5.36- 106.38 |
5.81- 131.87 |
6.57- 145.14 |
7.14- 144.79 |
7.24- 192.18 |
7.19- 197.37 |
8.95~ 176.05 |
8.74- 141.46 |
8.68- 146.07 |
12.65- 150.41 |
17.28- 163.91 |
17.27- 180.78 |
| Permissible torque(N.m) | 200 | 400 | 600 | 820 | 1550 | 2700 | 4300 | 8000 | 13000 | 18000 | 32000 | 50000 |
KF Series Helical Gearbox Mounting Dimensions

Setting up the KAF Series Hollow Shaft Output Helical Gearbox is a clear process if you take it step by step:
- Prepare the Area: Park your machine on a flat surface and cut the power. Release any pressure to stay safe before touching the flange-mounted setup.
- Get Your Tools: Grab a wrench set, torque wrench, and level. The manual might list extra tools based on your motor.
- Line Up the Flange: Position the gearbox so the B5 flange matches the motor’s mounting spots. Use a level to keep it straight—off angles can cause trouble later.
- Tighten the Bolts: Secure the flange with bolts, tightening in a crisscross order to the torque in the manual (usually 50-70 Nm, check your model). This keeps it solid.
- Attach the Shaft: Slide the hollow shaft onto the driven component, ensuring a snug fit. If it jams, check for dirt or misalignment and fix it.
- Check Everything: Go over all bolts and fittings again. Run a low-speed test to catch any odd sounds or shakes, fixing them right away.
- Finish Up: Add lubricant to moving parts as recommended and put on any safety covers.
Take it slow to avoid mistakes—rushing can lead to leaks or vibration. A helper or pro can assist if the setup gets tricky. This guide works for a KAF series helical gearbox or any flange-mounted gearbox setup.
Key Features of KF Series Solid Shaft Output Helical Gearbox
The KAF Series comes loaded with features that make it a standout KAF series helical gearbox:
- Hollow Shaft Output: Allows for easy and secure shaft connections, simplifying assembly.
- Flange-Mounted Design: Pairs smoothly with motors, saving time during installation.
- High Efficiency: Runs with low energy use, cutting down on power costs.
- Durable Construction: Built to last, standing up to tough conditions over the years.
- Compact Design: Fits into tight spaces, making it ideal for crowded setups.
Applications of KAF Series Hollow Shaft Output Helical Gearbox
The KAF Series proves its worth across multiple fields. In metallurgy, it powers rolling mills with steady force, while construction sites use it for cranes and mixers that face rough conditions. Packaging lines benefit from their smooth, quiet operation, keeping production on track. This makes it an ideal KAF series helical gearbox for industries needing a helical bevel gear unit that adapts to the task. Whether you’re lifting steel beams or moving boxes, this gearbox keeps things moving.
Its design shines in different settings. Outdoor jobs appreciate their ability to handle dust and vibration, while indoor plants value the low noise. This flexibility suits small operations and big factories, proving its wide appeal.
Installation Tips from the Field for KAF Series Hollow Shaft Output Helical Gearbox
Getting your KAF Series Hollow Shaft Output Helical Gearbox with Flange-Mounted installed correctly is key to ensuring top performance, and real-world experience offers valuable insights. One common challenge is misaligned flanges—when the flange doesn’t sit flush with the motor mounting points, it can cause stress on the system. To fix this, loosen the bolts carefully, adjust the alignment using a level or straightedge, and retighten them in a crisscross pattern to the torque specified in the manual (typically 50-70 Nm, but confirm for your model). This step prevents uneven pressure that could lead to vibration or premature wear, making it a critical tip for anyone installing a KAF series helical gearbox.
Another issue to watch for is a shaky start during the initial test run. This often signals a loose connection, such as an unsecured bolt or an improperly seated hollow shaft. Stop the operation immediately, double-check all mounting hardware, and tighten any loose components to the recommended torque. Recheck the alignment of the flange-mounted setup and ensure the hollow shaft fits snugly with the driven component—any play here can cause instability. These lessons, drawn from hands-on field experience, keep your installation on track and optimize the longevity of your helical bevel gearbox. For best results, test at low speed first, listening for unusual noises, and address any issues before full operation.
Visual Guide to KAF Series Hollow Shaft Output Helical Gearbox
Check out the KAF Series with sharp images from different angles—front, side, and top views show off the hollow shaft and flange design. A short video walks you through unpacking, aligning, and testing, helping you see how it fits. These visuals make it easier to decide if this helical bevel gearbox suits your needs and spot any setup issues early.
What Customers Say About Our KAF Series Gearbox
Real feedback adds weight to the KAF Series’ value. A construction worker said, “The helix gearbox ran our crane quietly and held up great.” A factory manager added, “The hollow shaft saved us time linking to our line.” These stories show the gearbox’s practical strengths.
Pricing and Availability for KAF Series Gearbox
Contact us for a quote tailored to your order—pricing fits your specific needs. We keep stock ready for fast shipping, so your KAF series helical gearbox arrives quickly. Ask about bulk deals and check availability with our team.
Frequently Asked Questions About KAF Series Gearbox
- Is the KAF Series Hollow Shaft Output Helical Gearbox right for me? Yes, its range covers many uses—reach out with your details to confirm.
- What’s the warranty? A standard warranty comes with it; see the manual or ask for specifics.
- Do you offer help? Our team is here for installation or troubleshooting support.
- Can it fit my motor? The B5 flange works with standard motors—check compatibility first.
These answers cover common questions, building confidence in the product.
Why Choose Our KF Series Solid Shaft Output Helical Gearbox?
Picking the KAF Series means opting for real benefits. Its high efficiency lowers energy bills, a big plus for large setups. The quiet operation improves the work environment, and the durable build cuts down on replacements. The hollow shaft output lets you connect to other parts easily, while the flange-mounted design makes swaps or upgrades straightforward.
Maintenance stays light thanks to its tough construction—fewer repairs mean more uptime. For anyone after a bevel helical gear box that balances performance with ease, the KAF Series hits the mark. Users often praise its dependability, backing up its reputation.

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Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
FAQ
Q: Are you trading company or manufacturer ?
A: Our group consists in 3 factories and 2 abroad sales corporations.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How long is your delivery time ? What is your terms of payment ?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization. For standard products, the payment is: 30% T/T in advance ,balance before shipment.
Q: What is the exact MOQ or price for your product ?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.


