Timken NU design · catalog page 74
NU224EMA
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
- 143.5 mm
- Static load rating C0
- 431 kN
- Dynamic load rating C1
- 379 kN
- Oil thermal speed
- 3,400 rpm
- Grease thermal speed
- 2,900 rpm
- Weight
- 6.5 kg
- Axial displacement s
- 2.1 mm
- Shaft backing diameter
- 138 mm
- Housing backing diameter
- 195.5 mm
- Geometry factor Cg
- 0.111
- Published row text
- 120.000 215.000 40.000 143.500 431 379 NU224EMA 2.1 2.1 138.0 195.5 2.1 0.111 3400 2900 6.50
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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