Overview
The Dodge 120411 SDS X 1-15/16″ QD quick disconnect bushing is a precision-engineered component for power transmission systems requiring rapid shaft mounting and dismounting. Manufactured from ductile iron (class 65) to industry standards, this Dodge 120411 bushing features a 4-degree angled taper and flanged design for secure, repeatable engagement with SDS-type sheaves and sprocket hubs.
Key Features
- Quick Disconnect Design: Enables fast on/off operation without special tools or keys
- Flanged Construction: 4-3/4″ hub diameter with 3-3/16″ flange diameter for stable mounting
- Ductile Iron Construction: Class 65 material provides durability in high-torque applications
- Three-Bolt Mounting: Standard flange holes with 2-11/16″ bolt circle spacing
- 1/2″ x 1/16″ Keyway: Compatible with standard shaft key sizes for power transmission
Technical Specifications
| Model Number | 120411 |
| Bushing Type | QD (Quick Disconnect) |
| Bushing Size | SDS |
| Bore Diameter | 1-15/16″ (49.213 mm) |
| Bore Length | 1.3100″ (33.274 mm) |
| Barrel Diameter | 2.187″ |
| Hub Diameter | 4-3/4″ |
| Flange Diameter | 3-3/16″ |
| Flange Thickness | 7/16″ |
| Overall Length | 1-5/16″ |
| Bolt Circle | 2-11/16″ |
| Number of Bolts | 3 |
| Bolt Size | 1/4″ x 1-3/8″ |
| Keyway | 1/2″ x 1/16″ |
| Rated Torque | 5000 in-lb (22,241 N) |
| Installation Torque | 108 in-lb |
| Material | Ductile Iron, Class 65 |
| Taper Angle | 4 degrees |
| Weight | 0.87 lb |
Typical Applications
- Conveyor and drive belt systems requiring quick pulley changes
- Industrial machinery with frequent shaft coupling/decoupling needs
- Fan and blower assemblies on tapered bore hubs
- Sprocket and gear drive systems in manufacturing plants
- Power transmission equipment where downtime for maintenance must be minimized
Compatibility & Replacements
Compatible With
- SDS-type flanged sheaves and sprocket hubs
- 4-3/4″ diameter hub assemblies with 2-11/16″ bolt circle spacing
- 1-15/16″ tapered bore shafts
- Standard industrial power transmission systems using 4-degree taper bushings
Replaces / Drop-In Replacement For
- Original equipment Dodge 120411 QD bushings
- Other SDS 1-15/16″ quick disconnect bushings from competing manufacturers using identical bore diameter and flange dimensions
Works With
- Dodge QD sheaves and sprocket hubs marked “SDS 1-15/16”
- Any standard shaft with 1-15/16″ diameter and 1/2″ x 1/16″ keyway
- Industrial belt drive systems and chain drive assemblies
- Standard 1/4″ socket head cap screws for flange mounting
