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30307.A

Product catalog summary

Product Overview
This document provides technical specifications for the single row tapered roller bearing, model 30307.A, manufactured by SNR. The bearing features a pressed steel cage and is designed for various mechanical applications.

Specifications

Inner Diameter (d): 35 mm
Outer Diameter (D): 80 mm
Bearing Width (B): 21 mm
Dynamic Load Capacity (C): 78.8 kN
Static Load Capacity (C0): 82.6 kN
Fatigue Limit Load (Cu): 10.1 kN
Reference Speed (Nref): 6,400 rpm
Limiting Speed (Nlim): 9,500 rpm
Minimum Operating Temperature (Tmin): -40 °C
Maximum Operating Temperature (Tmax): 120 °C
Mass: 0.52 kg

Dimensional Details

Width of the bearing (T): 22.75 mm
Diameter of the inner ring (d1): 55.3 mm
Abutment dimensions include maximum and minimum values for various parameters such as da, db, Da, Db, Ca, and Cb.

Performance Characteristics

Characteristic Cage Frequency (FTF): 0.4 Hz
Characteristic Rolling Element Frequency (BSF): 4.71 Hz
Characteristic Outer Ring Frequency (BPF0): 5.6 Hz
Characteristic Inner Ring Frequency (BPFI): 8.4 Hz

Standards and References

ISO 355 Reference: T2FB035

Manufacturer Information
NTN-SNR ROULEMENTS, located in Annecy Cedex, France, is the manufacturer of this bearing. The company is registered under RCS ANNECY B 325 821 072.

Catalog excerpts

Technical datasheet 30307.A Single row tapered roller bearings Tapered roller bearing, pressed steel cage NTN-SNR ROULEMENTS - www.ntn-snr.com 1 rue des Usines - 74010 Annecy Cedex - France - Tel. +33 (0)4 50 65 30 00 S.A. au capital de 123 599 542 € - RCS ANNECY B 325 821 072 - Id. Fiscale : FR 48 325 821 072 SIRET 325 821 072 00015 - Code APE 2815 Z - Code NACE 28.15

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Rating life coefficient, A2 1 Fatigue limit load, Cu 10.1 kN Min operating temperature, Tmin -40 °C Max operating temperature, Tmax 120 °C Characteristic cage frequency, FTF 0.4 Hz Characteristic rolling element frequency, BSF 4.71 Hz Characteristic outer ring frequency, BPF0 5.6 Hz Characteristic inner ring frequency, BPFI 8.4 Hz da max db min Da min Da max Db min Ca min Cb min ra max r1a max NTN-SNR ROULEMENTS - www.ntn-snr.com 1 rue des Usines - 74010 Annecy Cedex - France - Tel. +33 (0)4 50 65 30 00 S.A. au capital de 123 599 542 € - RCS ANNECY B 325 821 072...

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Calculation factors If Po <Fr, then use Po = Fr The values for e, Y2 and YO are shown in the above table NTN-SNR ROULEMENTS - www.ntn-snr.com 1 rue des Usines - 74010 Annecy Cedex - France - Tel. +33 (0)4 50 65 30 00 S.A. au capital de 123 599 542 € - RCS ANNECY B 325 821 072 - Id. Fiscale : FR 48 325 821 072 SIRET 325 821 072 00015 - Code APE 2815 Z - Code NACE 28.15

Open the catalog to page 3

30307.A

30307.A

Catalog excerpts

All NTN - SNR ROULEMENTS catalogs and technical brochures