Timken NJ design · catalog page 56
NJ305ETP
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
- 34 mm
- Static load rating C0
- 37 kN
- Dynamic load rating C1
- 41 kN
- Oil thermal speed
- 10,300 rpm
- Grease thermal speed
- 8,600 rpm
- Weight
- 0.25 kg
- Axial displacement s
- 1.2 mm
- Shaft backing diameter
- 31 mm
- Housing backing diameter
- 54.9 mm
- Geometry factor Cg
- 0.058
- Published row text
- 25.000 62.000 17.000 34.000 37 41 NJ305ETP 1.1 1.1 31.0 54.9 1.2 0.058 10300 8600 0.25
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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