What Is The Different of Nylon Cage? Nylon Cage Vs Steel Cage Bearings

The cages of Roing bearings have two struchuraldesigns: with cage and without cage. High load, low-speed cylindricalroler bearings,deep qroove bal bearngs and thnust tapered rolerbeanings,CARB toroidalroer bearngs genera adopta cage-free design. Specialbearings such as hightemperaure beaings, high-speed turbojetbearings and other bal bearngs alsoadopt a cage-free design.

Most rolling bearings are equipped with cages. The main functions of the cage are:

1.The cage separates the rolling elements at equal distances and is evenly distributed on the circumference of the raceway to prevent collision and friction between the rolling elements

2. Guide and drive the rolling elements to roll on the correct raceway;

3. The cage space can store grease;

4. In a separable bearing, the rolling element and a ring are combined together to prevent the rolling element from falling off.

Nylon cages,scientific name polyamide PA66

Polyamide 6 (PA66) is the most common mateiral for injection molded nylon cages. This material has a good combinaion of strength and elasticity, whether or not it contains glass fibers.The mechanical properies of polymer materals, such as strength and elasticly, are temperature-dependent and are susceptible to aging. The factors that have the greatestinuenc on thaging process are temperalure, ime and the medum (lubicant to which the poymer is exposed. Cage lfe decreases with increasing temperatre and the aggressiveness ofthe lubricant.

The sultabllity of a polyamlde cage for a speclflc appllcatlon therefore depehds on the operating cohdltlons ahd Tife requlremehts. Lubrlcants are dlvided Tnto"aggressve"ahd "mlld", which is reflected in the"perrmlsslble operating temperature"of cages made of glass-fiber relnforced PA66 with varlous lubricants.

Polyamides lose their elasticity at low temperatures. Therefore, cages made of glass-fiber reinforced PA66 should not be used in applications with continuous operating temperatures below -40°C.

Polyamide46

Glass-relnrorced polyamlde 46 (PA46) Is the standard cage materlal for some small ahd medlum-slzed CARB toroldal roller bearings. The permlsslble operating temperature Is 15 °C (25 °F)higher than glass-reinforced PA66.

Polyetheretherketone

Glass-reinforced polyetheretherketone (PEEK is beter suited than PA66 and PA46 for demanding conditions such as high speeds, chemical resistance orhigh temperatures. The superior properies of PEEK provide an excelent combination of strength and fiexibilty, a high operating temperalure range,and high chemical and wear resistanc. Due to these outstanding properties, PEEK cages are often used in hybrid and/or super-precision ball and cylindrical roller bearings. At temperatures up to 200 °C (390 °F), the material shows no signs of aging due to temperature or oil additives. However, the maximum temperature limit for high-speed use is 150 °C (300 °F) as this is the softening temperature of the polymer.

Nylon bearing cages have low vibration,low noise, low heat generaion,high load-bearing capacity,and can improve the bearing's limit speed and life.They can usually work stably for a long time in the temperature range of -40°C+80°C, and are compatible with beaning lubricans. Nylon bearing cages are suitable for motors,machime tools,gear transmission shats, pumps,compressors and other fields.

Now nylon cages are used more and more, so what are its advantages? The nylon cage of the bearing is a new generation of productsthat currently replace copper cages and iron cages. Compared with metal cages, it has many advantages:

1.It is ight in weight and improves the flexibility of the bearing. lf it is used in electrical appliances or power-consuming products, it has a great effect on energy saving.

2. It is light in weight, and the centriftugal force generated by the bearing itself during rotation is relatively small, which is more suitable for

high-speed working conditions.

3. It has low noise and is the first choice for manufacturing silent bearings, especially for electrical appliances with high noiserequirements. Nylon cages are the first choice.

4.It has low ficion and can efiectively extend the service life of the bearing. The friction belween the nvlon cage and the roling element islower than the friction between the metal cage and the steel bal, which greatly extends the service life of the bearing.

5. It is easy to manufacture, which areatly improves production eficiency and reduces production costs.

Although the nylon cage has so many advantages, it also has many disadvantages during the use of the bearing, mainly including: the compressive strength of the nylon cage is not as strong as the metal steel cage, and the load capacity is not high.

In short, metal cages and nyion cages of bearings have their own advantages and disadvantages. When choosing, you should chose according to the userequirements. For example, fyou require low-noise electrical appliances, you should choose nylon cage bearings. For equipment with high temperature, large load.and large vibraion, you should give priorly to stamping steel cages or machined copper bearings. fnylon cage beanings ned to be used in special workingconditions such as hiah temperature and corroslon, please contact us.