Industrial replacement referenceSource-backed records · No compatibility guesswork

Timken N design · catalog page 54

N203ETP

Exact single-row metric cylindrical roller bearing record from Timken's July 2025 catalog.

Bore17 mmOutside diameter40 mmWidth12 mmDynamic rating19 kNOfficial source ↗

Published bearing data

Dimensions and ratings

Order No. 10447
Design
N
Roller-path diameter F/E
35.1 mm
Static load rating C0
16 kN
Dynamic load rating C1
19 kN
Oil thermal speed
15,200 rpm
Grease thermal speed
12,500 rpm
Weight
0.07 kg
Axial displacement s
1 mm
Shaft backing diameter
20.7 mm
Housing backing diameter
37.1 mm
Geometry factor Cg
0.041
Published row text
17.000 40.000 12.000 35.100 16 19 N203ETP 0.6 0.3 20.7 37.1 1.0 0.041 15200 12500 0.07

Verification boundary

What still needs to match

Do not infer interchange
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.

Related catalog parts

Same design, nearby bore

8