BG260 Double Cutterhead Straight Bevel Gear Machine
- BG260 Double Cutterhead Straight Bevel Gear Generating MachineDownload
| Model | Unit | BG260 |
| Max. diameter of workpiece | mm | 250 (9.8”) |
| Max. module of workpiece | mm | 1.5-10 |
| Max. cone distance of workpiece | mm | 130 (5.1”) |
| Max. tooth number | 80 | |
| Max. tooth width | mm | 60 (2.4”) |
| Range of pitch cone angle | ° | 9°25’-80°35’ |
| Min. teeth number | 7 (No.1 workhead); 10 (No.2 workhead) | |
| Speed of cutterhead | rpm | 25.32; 2 steps |
| Time for cutting one tooth | s | 5-53 |
| Max diameter at gear ratio of 5:1 (pinion/main gear) | mm | Φ52/260 (2.1/10”) |
| Max diameter at gear ratio of 4:1 (pinion/main gear) | mm | Φ63/252 (2.5/9.9”) |
| Max diameter at gear ratio of 3:1 (pinion/main gear) | mm | Φ82/246 (3.2/9.7”) |
| Max diameter at gear ratio of 2:1 (pinion/main gear) | mm | Φ116/232 (4.6/9.1”) |
| Max diameter at gear ratio of 1:1 (pinion/main gear) | mm | Φ185/185 (7.3/7.3”) |
| Main motor power | kW | 12 |
| Cutterhead motor power | kW | 3 |
| Hydraulic motor power | kW | 3 |
| Second and third position cradle motor power | kW | 3 |
| Overall dimensions | mm | 2070x2130x1700 |
| Packing dimensions | mm | 2650x2300x2150 |
| Net weight | kg | 7500 |
| Gross weight | kg | 8200 |
Applications of BG260 Double Cutterhead Straight Bevel Gear Generating Machine
BG260 Double Cutterhead Straight Bevel Gear Generating Machine is designed for cutting straight bevel gears used in automobile, tractor, machine tool and other industries.
Main Characteristics of BG260 Double Cutterhead Straight Bevel Gear Generating Machine
1. BG260 adopts vertical double station frame; big diameter cutterhead has good rigidity.
2. Gears of module under 6mm can be cut on physical blank.
3. Two cradles can enter the cutting position alternately to complete machining of bevel gear pair.
4. The station change adopts manual rotary valve.
1. BG260 adopts vertical double station frame; big diameter cutterhead has good rigidity.
2. Gears of module under 6mm can be cut on physical blank.
3. Two cradles can enter the cutting position alternately to complete machining of bevel gear pair.
4. The station change adopts manual rotary valve.
| Model | Unit | BG260 |
| Max. diameter of workpiece | mm | 250 (9.8”) |
| Max. module of workpiece | mm | 1.5-10 |
| Max. cone distance of workpiece | mm | 130 (5.1”) |
| Max. tooth number | 80 | |
| Max. tooth width | mm | 60 (2.4”) |
| Range of pitch cone angle | ° | 9°25’-80°35’ |
| Min. teeth number | 7 (No.1 workhead); 10 (No.2 workhead) | |
| Speed of cutterhead | rpm | 25.32; 2 steps |
| Time for cutting one tooth | s | 5-53 |
| Max diameter at gear ratio of 5:1 (pinion/main gear) | mm | Φ52/260 (2.1/10”) |
| Max diameter at gear ratio of 4:1 (pinion/main gear) | mm | Φ63/252 (2.5/9.9”) |
| Max diameter at gear ratio of 3:1 (pinion/main gear) | mm | Φ82/246 (3.2/9.7”) |
| Max diameter at gear ratio of 2:1 (pinion/main gear) | mm | Φ116/232 (4.6/9.1”) |
| Max diameter at gear ratio of 1:1 (pinion/main gear) | mm | Φ185/185 (7.3/7.3”) |
| Main motor power | kW | 12 |
| Cutterhead motor power | kW | 3 |
| Hydraulic motor power | kW | 3 |
| Second and third position cradle motor power | kW | 3 |
| Overall dimensions | mm | 2070x2130x1700 |
| Packing dimensions | mm | 2650x2300x2150 |
| Net weight | kg | 7500 |
| Gross weight | kg | 8200 |
BG260 Double Cutterhead Straight Bevel Gear Generating Machine is designed for cutting straight bevel gears used in automobile, tractor, machine tool and other industries.
Knee Type Milling Machine: Precision Versatility for Industrial Manufacturing
What is a Knee Type Milling Machine?
A knee type milling machine is a fundamental machine tool distinguished by its vertically adjustable worktable mounted on a "knee" casting. This knee moves precisely up and down a fixed column via a screw mechanism, enabling accurate Z-axis positioning crucial for diverse milling operations.
Working Principle
The core principle involves a rotating milling cutter removing material from a workpiece secured to the table. The adjustable knee mechanism allows controlled vertical movement (Z-axis), while the table provides longitudinal (X-axis) and transverse (Y-axis) travel. This 3-axis control facilitates complex machining of flat, angular, and contoured surfaces.
Key Applications
- Tool & Die Making: Precision molds, jigs, fixtures
- Prototyping: Rapid part development
- Maintenance Shops: Equipment repair & part fabrication
- General Machining: Slotting, drilling, facing, keyway cutting
- Aerospace & Automotive: Component manufacturing
Distinctive Features & Advantages
- Vertical Adjustability: Knee movement enables quick workpiece height changes
- Rigid Construction: Robust cast iron frame ensures stability
- Manual & CNC Options: Traditional control or computer numerical precision
- Turret Design (Common): Swiveling milling head for multi-angle machining
- Wide Workpiece Compatibility: Handles various sizes and shapes
Primary Classifications
- Vertical Knee Mill: Spindle axis perpendicular to table (most common)
- Horizontal Knee Mill: Spindle axis parallel to table (for heavy stock removal)
- Universal Knee Mill: Table swivels for complex angular cuts
- Turret Mill: Head rotates on turret for flexible positioning
Main Components
- Base & Column: Primary support structure
- Knee: Vertically moving saddle supporting the table
- Saddle & Table: Hold and position the workpiece (X/Y axes)
- Milling Head: Houses spindle, motor, and quill (Z-axis)
- Arbor/Spindle: Rotating shaft holding cutting tools
- Controls: Manual handwheels or CNC interface
Evolution & Industry Significance
Since their development in the late 19th century, knee-and-column mills revolutionized machining. The iconic Bridgeport design (1938) popularized the turret style. While CNC machining centers dominate high-volume production, knee mills remain indispensable for flexibility, ease of use, and cost-effectiveness in job shops, schools, and repair facilities worldwide.
Fortune Pacific: Your Knee Mill Solution
At Fortune Pacific, we engineer durable, high-precision knee type milling machines for demanding applications. Explore our range of vertical mills, horizontal mills, and CNC-ready models designed to enhance your workshop's capabilities. Discover the ideal machine for your metalworking, prototyping, or toolmaking needs.
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