QB308 (Open Centre Chucks / QB-300)
Key Features
210 mm three jaw power chuck with 52mm through hole and max speed of 4500rpm.
- Outer Grip Range (mm): Φ18~Φ180
- Jaw Stroke (diameter mm): 7.4
- Max Gripping Force (kN): 84
Kitagawa's QB300 Quick-Jaw Change Chuck
Downloads:
Description and Specifications:
Chucks are manufactured from high grade alloy steel. Three jaw wedge style power chucks deliver up to 20% more speed, gripping force and bore size when compared to conventional chucks.
- Through-hole (mm): 52
- Plunger Stroke (mm): 16
- Outer Gripping Range (mm): Φ18~Φ180
- Jaw Stroke (diameter mm): 7.4
- Max. Draw Bar Pull Force: 34kN, 3467 kgf
- Max. Gripping Force: 84 kN, 8565 kgf
- Max Speed: 4500rpm
- Weight (with soft jaws) 23.2kg
- Moment of inertia: 0.173 kg.m2
- Matching cylinder: S1552
- Max pressure: 2.6 MPa, 26.5 cm2
- Matching soft top jaw: SB08BB
Further Information:
Click here for gripping characteristic graph.
Click here for information on Soft Top Jaws for QB300 series.
Click here for information on Kitagawa Chuck Grease Pro.
Mounting: Recess mount, requires additional adaptor.
Standard Equipment: Chuck includes mounting bolts, T-nuts and jaw mounting bolts. Also included blank drawnut and mounting wrench.