399/393A single row inch tapered roller bearing made of chrome steel

399/393A single row inch tapered roller bearing Explanation :

The cone (inner ring) size : 399

The cup (outer ring) size : 393A

1), The number and size of 399/393A bearing conforms to the AFBMA standard.

2), 399/393A single row inch tapered roller bearing Cage :

HOJE Brand Tapered roller bearings are generally fitted with a pressed steel cage, or cage with glass fiber reinforced poly nylon 66.

3), 399/393A single row inch tapered roller bearing Minimum Load :

To achieve satisfactory operation, 399/393A single row inch tapered roller bearing,like all other roller bearings, must always be subjected to a given minimum load, particularly if they are to operate at  high speeds or are subjected to high accelerations or rapid changes in the direction of load. Under such conditions, the inertial forces of the rollers and cage, and the friction in the lubricant, can have a detrimental influence on the rolling conditions in the bearing arrangement and may cause damaging sliding movements to occur between the rollers and raceways.

4), 399/393A single row inch tapered roller bearing Clearance :

The clearance of 399/393A single row inch tapered roller bearing is obtained by adjusting the position of the outer and inner components in the axial direction, as well as the reversed axial position. When adjusting the clearance, we must turn the bearings several times back and forth to ensure that the rollers and the inner guide baffle are at the good contact position.

The clearance values can be selected according to the different working conditions of the bearing by the customer themselves. when choosing a clearance, we should pay attention that if the clearance is too big, the carrying capacity of the bearing will be weaken. If the clearance is too small, friction will be excessive and the operating temperature will be higher than normal.

We can determine the optimal clearance values according to the lowest operating temperature of the bearings, small vibration levels, and high rotating accuracy.

The clearance of double or four row tapered roller bearings has been adjusted by HOJE bearing Co.,LTD before the products leave the factory. You can install and use directly as received. Standard tapered roller bearings have dimensional accuracy to tolerance class specifications.

If you have other special requirements (including nonstandard designs or specifications) on the dimensions, tolerances, clearance, we can provide corresponding products.

5), 399/393A single row inch tapered roller bearing Arrangements:

399/393A single row inch tapered roller bearing can withstand axial load in one direction, and they can restrict the axial displacement when the axis is relative to bearing block in one direction. Usually the two single row tapered rollers which have the same structure are mounted face to face or back to back between the two supporting structure.399/393A single row inch tapered roller bearing can be supplied as matched pairs, arranged for example face-to-face or back-to-back.

6), HOJE Brand Tapered roller bearings Application : 

HOJE Brand tapered roller bearings have been exported to 35 countries and regions, our taper roller bearings manly used for Cranes and Hoists,Gears and Drives,Stamping Presses,Speed Reducers,Conveyor and Transfer Equipment,Mining Equipment,Automotive Front and Rear Axles,Motorcycle Wheels and Agricultural Equipment.

We also have other types of roller bearings, such as spherical roller bearings,cylindrical roller bearings. We have our own brand - "HOJE" brand, also can provide OEM service.

If you have any questions or needs about bearings, please contact us:

Linqing HOJE Bearing Co.,LTD.

Contact : Allen

Whatsapp/Wechat : +86 15563584530 or +86 15265510966

Skype : hojebearings