Description
XL3 Heavy-Duty 45# Steel Jaw Coupling Assembly
Precision-machined from premium 45# carbon steel. Combined with a 98 Shore A (Red) polyurethane spider, this XL3 jaw coupling assembly is designed for reliable torque transmission, high torsional stiffness, and durable industrial performance in demanding power transmission applications.
⚠️ MATERIAL & DESIGN NOTES
- Hub Material: 45# Carbon Steel. High tensile strength and durability for industrial shock loads.
- Spider Hardness: 98 Shore A (Red). High stiffness for precise positioning and rapid start-stop cycles.
- XL3 Hub Design: Stepped hub (D1: 48mm) for 10-28mm bores; straight hub (D1: 64mm) for 30-38mm bores.
Technical Reference (Drawing & Specs)
*Refer to the drawing above for the specification table below. All units are in mm.
| Model | OD (D) |
Bore (d1,d2) |
Pilot (D1,D2) |
Hub L |
Total L0 |
E | Rated Nm |
Max RPM |
|---|---|---|---|---|---|---|---|---|
| XL0 | 30 | 8-16 | 30 | 18 | 50 | 13 | 20 | 19,000 |
| XL1 | 40 | 8-19 | 32 | 25 | 66 | 16 | 20 | 19,000 |
| 20-25 | 40 | |||||||
| XL2 | 54 | 8-24 | 40 | 30 | 78 | 18 | 70 | 14,000 |
| 25-32 | 54 | |||||||
| XL3 | 64 | 10-28 | 48 | 35 | 90 | 20 | 190 | 11,800 |
| 30-38 | 64 | |||||||
| XL4 | 78 | 12-38 | 66 | 45 | 114 | 24 | 380 | 9,500 |
| 40-48 | 78 | |||||||
| XL5 | 94 | 14-42 | 75 | 50 | 126 | 26 | 530 | 8,000 |
| 45-55 | 94 | |||||||
| XL6 | 104 | 15-48 | 85 | 56 | 140 | 28 | 620 | 7,100 |
| 50-60 | 104 | |||||||
| XL7 | 118 | 20-55 | 100 | 65 | 160 | 30 | 820 | 6,300 |
| 60-75 | 118 | |||||||
| XL8 | 135 | 22-65 | 115 | 75 | 185 | 35 | 1,250 | 5,600 |
| 70-75 | 135 | |||||||
| XL9 | 160 | 30-75 | 135 | 85 | 210 | 40 | 1,950 | 4,750 |
| 80-95 | 160 | |||||||
| XL10 | 200 | 40-90 | 160 | 100 | 245 | 45 | 4,800 | 3,750 |
| 95-110 | 200 |
Q: Is this a complete jaw coupling assembly?
A: Yes. Each SKU includes one complete jaw coupling assembly with 2 hubs and 1 polyurethane spider.
Q: What is the difference between blind bore and finished bore?
A: A blind bore version is supplied with unfinished pilot bores for custom machining. A finished bore version comes with completed bore sizes for direct shaft matching.
Q: Does XL3 use different hub designs for different bore ranges?
A: Yes. XL3 uses a stepped hub design for 10-28mm bores and a straight hub design for 30-38mm bores, based on the dimensions shown in the specification table.
Q: Why use the 98 Shore A (Red) spider?
A: The 98 Shore A spider offers higher stiffness, making it suitable for applications that require precise motion control and quick response.