Thomson Linear Motion Optmized
Shafting - Shaft Class
Product Details
Shafting Class
Thomson shafting is available in several tolerance ranges or classes:
- L - Larger
- S - Smaller
- N - Needle
- D - Die Set
- XL - eXtra precision class L
- MM - Metric
- G - Groove (Class L shaft with a groove)
Example diameter
The following is an example of the actual diameters of a 1" nominal shaft in several classes:
- L - 0.9995/0.9990"
- S - 0.9990/0.9985"
- N - 1.0000/0.9998"
- D - 1.0003/1.0000"
- G - Same as class L
- XL class is not available in 1" diameter. But its diameter tolerance is similar to Class L except with a narrower tolerance band.
- Class MM are metric diameters and have an h6 tolerance.
For use with
The shaft class also indicates which product the shafting is designed to work with.
- Class L -
- Super Smart Ball Bushing® bearings
- Super Ball Bushing bearings
- RoundWay® bearings
- FluoroNyliners Bushings
- XA Ball Bushing bearings
- A Type open and adjustable Ball Bushing bearings
- Class S - A type closed Ball Bushing bearings
- Class N - Needle roller bearings
- Class D - Die Set Ball Bushing bearings
- Class XL - XR Ball Bushing bearings
- Class G - BG optioned Super Ball Bushing bearings
- Class MM - Metric Ball Bushing bearings
