Timken NU design · catalog page 71
NU319EMA
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
- 121.5 mm
- Static load rating C0
- 395 kN
- Dynamic load rating C1
- 379 kN
- Oil thermal speed
- 3,900 rpm
- Grease thermal speed
- 3,400 rpm
- Weight
- 7.1 kg
- Axial displacement s
- 3 mm
- Shaft backing diameter
- 115.3 mm
- Housing backing diameter
- 177.5 mm
- Geometry factor Cg
- 0.101
- Published row text
- 95.000 200.000 45.000 121.500 395 379 NU319EMA 3.0 3.0 115.3 177.5 3.0 0.101 3900 3400 7.10
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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