Reyn (reyn)
One pound-force second per square inch. Used in lubrication engineering.
What is a reyn?
- Symbol
- reyn
- Quantity
- Dynamic Viscosity
- Unit system
- US customary
- Definition
- One pound-force second per square inch. Used in lubrication engineering.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in US lubrication and bearing design for oil film calculations, often as microreyns.
Reyn in other dynamic viscosity units
- 1 reyn ≈ 6894.757293 Pa·sPascal second
- 1 reyn ≈ 6894757.293 mPa·sMillipascal second
- 1 reyn ≈ 68947.57293 PPoise
- 1 reyn ≈ 6894757.293 cPCentipoise
- 1 reyn ≈ 4633.062992 lb/(ft·s)Pound per foot second
- 1 reyn = 144 lbf·s/ft²Pound-force second per square foot
Reyn quick reference
| Reyn | Pascal second | Centipoise | Millipascal second |
|---|---|---|---|
| 1 reyn | ≈ 6894.757293 Pa·s | ≈ 6894757.293 cP | ≈ 6894757.293 mPa·s |
| 10 reyn | ≈ 68947.57293 Pa·s | ≈ 68947572.93 cP | ≈ 68947572.93 mPa·s |
| 100 reyn | ≈ 689475.7293 Pa·s | ≈ 689475729.3 cP | ≈ 689475729.3 mPa·s |
| 1000 reyn | ≈ 6894757.293 Pa·s | ≈ 6894757293 cP | ≈ 6894757293 mPa·s |
Where the reyn fits
The next smaller dynamic viscosity unit is the pound-force second per square foot (lbf·s/ft²). 1 reyn = 144 lbf·s/ft², and 1 lbf·s/ft² ≈ 0.006944444444 reyn.
Frequently asked questions
- How many pascal seconds are in one reyn?
- One reyn ≈ 6894.757293 Pa·s (pascal seconds).
- How many centipoise are in one reyn?
- One reyn ≈ 6894757.293 cP (centipoise).
- How many millipascal seconds are in one reyn?
- One reyn ≈ 6894757.293 mPa·s (millipascal seconds).