Timken NU design · catalog page 69
NU317EMA
Exact single-row metric cylindrical roller bearing record from Timken's July 2025 catalog.
Published bearing data
Dimensions and ratings
- Design
- NU
- Roller-path diameter F/E
- 108 mm
- Static load rating C0
- 314 kN
- Dynamic load rating C1
- 313 kN
- Oil thermal speed
- 4,300 rpm
- Grease thermal speed
- 3,700 rpm
- Weight
- 5 kg
- Axial displacement s
- 3.5 mm
- Shaft backing diameter
- 103.6 mm
- Housing backing diameter
- 160 mm
- Geometry factor Cg
- 0.092
- Published row text
- 85.000 180.000 41.000 108.000 314 313 NU317EMA 2.5 2.5 103.6 160.0 3.5 0.092 4300 3700 5.00
Verification boundary
What still needs to match
Internal clearanceTimken notes that radial internal clearance must be included when ordering the complete assembly.
Fits and tolerancesConfirm shaft/housing fits, backing diameters, chamfers, and applicable tolerance class.
Design and cageMatch the N/NJ/NU/NUP arrangement and exact suffix rather than relying only on boundary dimensions.
Operating conditionsCheck load direction, lubrication, speed, temperature, contamination, and axial displacement requirements.
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