Timken NJ design · catalog page 75
NJ324EMA
Exact single-row metric cylindrical roller bearing record from Timken's July 2025 catalog.
Published bearing data
Dimensions and ratings
- Design
- NJ
- Roller-path diameter F/E
- 154 mm
- Static load rating C0
- 614 kN
- Dynamic load rating C1
- 594 kN
- Oil thermal speed
- 2,900 rpm
- Grease thermal speed
- 2,500 rpm
- Weight
- 15 kg
- Axial displacement s
- 3.8 mm
- Shaft backing diameter
- 147 mm
- Housing backing diameter
- 230 mm
- Geometry factor Cg
- 0.12
- Published row text
- 120.000 260.000 55.000 154.000 614 594 NJ324EMA 3.0 3.0 147.0 230.0 3.8 0.120 2900 2500 15.00
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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