Product Description
What this part is
NTN 2307 is an open double-row self-aligning ball bearing with a cylindrical bore. Bore Diameter: 35 mm. Outside Diameter: 80 mm. Width: 31 mm. Cage Material: Pressed steel. Internal Clearance: CN. Item Weight: 0.670 kg (1.473 lb).
Decoding the designation
2 — wide width series. The 23 series is wider than the 13 series on the same bore and outside diameter, with more load capacity.
3 — diameter series 3, the medium section.
07 — bore code, 07 x 5 = 35 mm.
What these specs mean in practice
Dynamic Load Rating: 40,000 N. Static Load Rating: 11,300 N. Limiting Speed: 7,100 rpm grease; 9,000 rpm oil. Operating Temperature Range: -40 to 120 °C. The outer ring raceway is a sphere, so the inner ring, balls and cage swivel to follow shaft deflection and housing misalignment. Axial load factors: Y1 1.40, Y2 2.10, Y0 1.40.
Mounting data
Chamfer Dimension r min: 1.5 mm. Shaft Abutment Diameter da min: 43 mm. Housing Abutment Diameter Da max: 72 mm. Fillet Radius ras max: 1.5 mm.
Quantity and configuration
Unit Quantity: 1 Pc. Single open bearing.
Interchange guidance
2307 is an ISO boundary-dimension designation and interchanges directly with SKF 2307 E, FAG 2307, NSK 2307 and Koyo 2307.