2H-3778 Bearing Locknut
Description
Cat® fastener parts are designed for specific applications based on size, strength, clamp load, and past performance. This information is not available to other manufacturers. They are carefully selected to last until the machine is rebuilt or reaches the end of its life. Non-Cat hardware and fasteners may appear to fit your machine, but no other company knows your equipment like we do.
These nuts are used to tighten the bearing in place and hold it fixed.
Features
- Cat fasteners are manufactured to precise specifications for durability, reliability and high efficiency
- Strength and Quality — Fasteners meet or exceed ISO, ASTM, ASME and SAE requirements.
- Cat bolts, nuts and washers are designed as a system that works together to maximize clamping force.
- Coating meets the special requirements of different applications (RoHS compliant).
Applications
Cat bolts form a performance-based system with mating hardened washers and nuts to produce consistent, high clamping force. You can trust Cat fasteners to help you build, maintain or rebuild in most machine and shop applications worldwide.
Specifications
| Drive Chain | 99999.99 mm (3937.008 in) |
|---|---|
| Remarks | Main Thread Diameter: 2.36, Nut Height: 13.5, Main Outside Diameter: 80.17 |
| Class or Grade | None |
| Coating | Zinc |
| Thread Size (Diameter × Pitch) | 2.360×18 mm |
| Thread Size | 2.360 mm (0.093 in) |
| Thread Direction | RH |
| Thickness | 13.5 mm (0.531 in) |
| Nut Model | Round (Spanner or Bearing) |
| Thread Size (in – TPI) | 7/3-18 in |
Compatible Equipment
- Generator Sets: 3512B
- Cold Planers: SE50 VT
- Excavators: 3516B, 3508B
- Off-Highway Trucks: 789, 785
- Asphalt Pavers: AP655F, AP-600D, AP655F L
Additional information
| Machine Model | 3508B, 3512B, 3516B, 785, 789, AP-600D, AP655F, AP655F L, SE50 VT |
|---|---|
| Equipment Type | Excavators, Off-Highway Trucks, Asphalt Pavers, Cold Planers, Generator Sets |
| Part Source | Genuine OEM |








