Bearing 850/832B Timken

Tapered roller bearings 850/832B

Bearing number : 850/832B

Size mm : 88.9x168.275x56.363

Brand : Timken

Bore Diameter mm : 88,9

Outer Diameter mm : 168,275

Width mm : 56,363

Bearing dimensions and specification in brand catalogue :

d - 88,9 mm

D - 168,275 mm

T1 - 22,225 mm

B - 56,363 mm

C - 41,275 mm

R - 3,6 mm

a - -18,5 mm

D1 - 177,698 mm

Da - 149 mm

db - 106 mm

C2 - 9,525 mm

da - 100 mm

Weight - 5,29 Kg

Basic static load rating C0 - 522 kN

Factor G1 - 197,9

Factor G2 - 34,8

Factor K - 1,95

Basic dynamic load rating C90 - 98,2

Basic dynamic load rating Ca90 - 50,3

Basic dynamic load rating C1 - 379 kN

Calculation factor e - 0,3

Calculation factor Y - 2

Bearing 850/832B Timken Shielded bearings have a storage life of five years and a further two years operational life following installation. Wash all bearing parts with a noncontaminating solvent. Lightly pack the bearings with grease applying a 33% fill by volume into the bearing and housings. Where Bearing 850/832B Timken space heaters are fitted, and the storage environment has wide humi dity and temperature variations, it is strongly recommended they be energised. Warnings should be placed on the Bearing 850/832B Timken to make operatives aware of the live heaters Supplies are normally 220-240 volt single phase, from a 380-415 volt three phase supply. See terminal box lid for details.

Bearing 850/832B Timken Shielded bearings have a storage life of five years and a further two years operational life following installation. Wash all bearing parts with a noncontaminating solvent. Lightly pack the bearings with grease applying a 33% fill by volume into the bearing and housings. Where Bearing 850/832B Timken space heaters are fitted, and the storage environment has wide humi dity and temperature variations, it is strongly recommended they be energised. Warnings should be placed on the Bearing 850/832B Timken to make operatives aware of the live heaters Supplies are normally 220-240 volt single phase, from a 380-415 volt three phase supply. See terminal box lid for details.

Insulation resistance During extended storage a three monthly insulation test is recommended to avoid possible lengthy drying out periods when installing Bearing 850/832B Timken. Use a 500 volt d.c. Megger.The insulation resistance between phases and between the windings and the frame should be checked. The insulation resistance should be maintained above 10 megohm. If a lower reading is measured, use one of the drying out methods recommended on page 14 until an acceptable reading is obtained. If heaters are fitted but not energised, they should be used in future. Wound rotors Ideally, wound Bearing 850/832B Timken brushes should not be in contact with the slip-rings during storage as there is a risk of corrosion. Brushes should either be lifted off the slip-rings or stored separately. This may not be possible with small Bearing 850/832B Timken.

Insulation resistance During extended storage a three monthly insulation test is recommended to avoid possible lengthy drying out periods when installing Bearing 850/832B Timken. Use a 500 volt d.c. Megger.The insulation resistance between phases and between the windings and the frame should be checked. The insulation resistance should be maintained above 10 megohm. If a lower reading is measured, use one of the drying out methods recommended on page 14 until an acceptable reading is obtained. If heaters are fitted but not energised, they should be used in future. Wound rotors Ideally, wound Bearing 850/832B Timken brushes should not be in contact with the slip-rings during storage as there is a risk of corrosion. Brushes should either be lifted off the slip-rings or stored separately. This may not be possible with small Bearing 850/832B Timken.