Dayton 3ZN29 Rigid Steel Trap 1 1/4 in 1/4 in Bore 4000 RPM 25 in-lb
Rigid carbon-steel shaft coupling with a 1 1/4 in bore, rated for 4,000 RPM and 25 in-lb torque
- Product typeDrain Components
- Rigid one-piece design ensures precise shaft alignment
- Carbon steel construction withstands demanding mechanical loads
- 4000 RPM rating supports high-speed power transmission
- 25 in-lb torque capacity handles substantial rotational force
- 74 in clearance diameter allows compact installation
Rigid Steel Coupling for High-Speed Shafts
The Dayton 3ZN29 is a one-piece rigid coupling machined from carbon steel. It connects two shafts with identical 1 1/4 in round bores in precision machinery and industrial equipment. The component transmits torque without flexibility or misalignment compensation.
Rated 4000 RPM and 25 in-lb Torque
This coupling handles a maximum rotational speed of 4000 RPM and a peak torque of 25 in-lb. These limits define the safe operating envelope for the connection. Exceeding either value risks mechanical failure or premature wear of the joined shafts.
No Accessories or Software Included
The product ships as a single steel coupling with no keys, set screws, lubricants or installation guides. The 0.74 in clearance diameter and 11/16 in outside diameter are inherent to the machined body. Buyers must supply their own fastening hardware and alignment tools.
How it compares
Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.
- Price $10.99
- Cheaper than about 82% of the 4,240 comparable items (median $31.99).
Specifications
| Product | |
|---|---|
| Brand name | Dayton |
| Model name | 3ZN29 |
| Product type | Drain Components |
Questions about this item
What does the 4000 RPM rating mean when this coupling is installed on a shaft?
The coupling is rated to run continuously at up to 4000 RPM without exceeding its design limits for centrifugal stress or balance.
How does the 25 in-lb torque rating limit what this coupling can transmit?
It caps the continuous torque the one-piece carbon-steel body can transfer between two 1 1/4 in round bores without permanent deformation.
What shaft dimensions and clearance are required to mount this rigid coupling?
Two shafts of 1 1/4 in diameter with round bores and at least 0.74 in clearance diameter for the 11/16 in outside-diameter body.
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