Timken NU design · catalog page 74
NU322EMA
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
- 143 mm
- Static load rating C0
- 546 kN
- Dynamic load rating C1
- 519 kN
- Oil thermal speed
- 3,100 rpm
- Grease thermal speed
- 2,800 rpm
- Weight
- 11.6 kg
- Axial displacement s
- 3 mm
- Shaft backing diameter
- 136.2 mm
- Housing backing diameter
- 211 mm
- Geometry factor Cg
- 0.114
- Published row text
- 110.000 240.000 50.000 143.000 546 519 NU322EMA 3.0 3.0 136.2 211.0 3.0 0.114 3100 2800 11.60
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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