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Ball Bearing
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Deep Groove Ball Bearing
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60 **,618 ** (1008), 619**(1009),62 **, 63 **, 64 **,
160 **(70001 )
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Thrust Ball Bearing
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511 ** (81) ,512 **(82) ,513 (83) ,514 ** (84) series and Angular Contact Thrust all Bearings like: 5617 ** (1687) ,5691 ** (91681), 5692 ** (91682) series
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Angular Contact Ball bearing
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SN718 **(11068 ) ,70 ** 72 **,73 **, and B (66), C (36), AC (46) series ; otherwise include QJ and QJF series
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Roller Bearing
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Spherical Roller bearing
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239**, 230**,240**, 231**, 241**, 222**, 232**, 223**, 233**, 213**, 238**, 248**, 249**and special series include 26** i.e 2638 (3738), 2644 (3844) and so on
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Taper Roller Bearing
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329**(20079),210**(71), 320**(20071),302**(72), 322**(75), 303**(73), 313**(273),323**(76), 3519**(10979), 3529**(20979),3510**(971), 3520**(20971),3511**(10977), 3521**(20977), 3522**(975), 319**(10076),3819**(10779),3829**(20779), 3810**(777,771), 3820**(20771), 3811**(10777,777) for example: 77752, 77788, 77779 and also include Inch series bearings suchas 938/932 single and double row i.e M255410CD etc.
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Thrust Roller Bearing
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292**(90392), 293**(90393),294**(90394),994**(90194), and 9069 series.
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Cylindrical Roller Bearing
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NU10**, NU2**,NU22**, NU3**,NU23**, NU4**, N, NJ ,NUP series as well as NB, NN, NNU series of big bearings, and we also have Split Bearings 412740, 422740 used in cement industry.And FC, FCD series used inSteel Industry.
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Metric series tapered roller bearings
For medium taper angle bearings and large taper angle bearings of the metric series, the contact angle codes C and D are respectively recorded after the inner diameter code. Ordinary taper angle bearings are not marked with contact angle codes, and medium taper angle bearings are mainly used for pinion shafts of automobile differential devices.
In the high-load capacity HR series, bearings with the basic code marked J, the outer ring width, outer ring raceway small end surface diameter and contact angle are consistent with ISO regulations. Therefore, the inner ring assembly (CONE) and outer ring of the same basic code bearing marked with this code are internationally interchangeable.
Among the tapered roller bearings of the metric series specified by ISO355, there are new sizes that are not based on the 3xx size series used in the past. Some of them are listed in the size table. The width of the outer ring, the diameter of the small end face of the outer ring raceway and the contact angle are consistent with ISO regulations, and the inner ring components and outer ring are internationally interchangeable.
For medium taper angle bearings and large taper angle bearings of the metric series, the contact angle codes C and D are respectively recorded after the inner diameter code. Ordinary taper angle bearings are not marked with contact angle codes, and medium taper angle bearings are mainly used for pinion shafts of automobile differential devices.
In the high-load capacity HR series, bearings with the basic code marked J, the outer ring width, outer ring raceway small end surface diameter and contact angle are consistent with ISO regulations. Therefore, the inner ring assembly (CONE) and outer ring of the same basic code bearing marked with this code are internationally interchangeable.
Among the tapered roller bearings of the metric series specified by ISO355, there are new sizes that are not based on the 3xx size series used in the past. Some of them are listed in the size table. The width of the outer ring, the diameter of the small end face of the outer ring raceway and the contact angle are consistent with ISO regulations, and the inner ring components and outer ring are internationally interchangeable.
Classification of tapered roller bearings
A single row tapered roller bearing has an outer ring, and its inner ring and a group of tapered rollers are an inner ring assembly enclosed by a basket cage. The outer ring can be separated from the inner ring assembly. According to the ISO taper roller bearing outline dimension standard, the outer ring or inner ring assembly of any standard model of taper roller bearing should be internationally interchangeable with the outer ring or inner ring assembly of the same model. That is, the outer ring of the same model must comply with the provisions of iso492 (gb307) in terms of external dimensions and tolerances, and the cone angle and cone diameter of inner ring components must also comply with the relevant provisions of interchangeability.
Generally, the taper angle of the outer race of single row tapered roller bearings is between 10 ° ~19 °, which can bear the combined action of axial load and radial load at the same time. The larger the cone angle, the greater the ability to bear axial load. For bearings with large cone angle, post code plus B, the cone angle is between 25 ° ~29 °, and it can bear large axial load. In addition, the clearance of single row tapered roller bearings can be adjusted during installation.
The outer ring (or inner ring) of double row tapered roller bearings is a whole. The small end faces of the two inner rings (or outer rings) are similar, and there is a spacer in the middle. The clearance is adjusted by the thickness of the spacer. The thickness of the spacer can also be used to adjust the pre interference of double row tapered roller bearings.
The performance of four row tapered roller bearing is basically the same as that of double row tapered roller bearing, but it bears more radial load than double row tapered roller bearing, and its limit speed is slightly lower. It is mainly used in heavy machinery.
Multi seal double and four row tapered roller bearings, ZWZ provides long-life, multi seal double and four row tapered roller bearings. Carry out personalized new design for bearings, change the traditional design method of fully sealed bearings, and adopt a new sealing structure combining sealing and dust prevention, so as to improve the sealing effect and sealing performance. Compared with open structure bearings, the service life of multi seal double and four row tapered roller bearings is increased by 20% – 40%; Lubricant consumption is reduced by 80%.
A single row tapered roller bearing has an outer ring, and its inner ring and a group of tapered rollers are an inner ring assembly enclosed by a basket cage. The outer ring can be separated from the inner ring assembly. According to the ISO taper roller bearing outline dimension standard, the outer ring or inner ring assembly of any standard model of taper roller bearing should be internationally interchangeable with the outer ring or inner ring assembly of the same model. That is, the outer ring of the same model must comply with the provisions of iso492 (gb307) in terms of external dimensions and tolerances, and the cone angle and cone diameter of inner ring components must also comply with the relevant provisions of interchangeability.
Generally, the taper angle of the outer race of single row tapered roller bearings is between 10 ° ~19 °, which can bear the combined action of axial load and radial load at the same time. The larger the cone angle, the greater the ability to bear axial load. For bearings with large cone angle, post code plus B, the cone angle is between 25 ° ~29 °, and it can bear large axial load. In addition, the clearance of single row tapered roller bearings can be adjusted during installation.
The outer ring (or inner ring) of double row tapered roller bearings is a whole. The small end faces of the two inner rings (or outer rings) are similar, and there is a spacer in the middle. The clearance is adjusted by the thickness of the spacer. The thickness of the spacer can also be used to adjust the pre interference of double row tapered roller bearings.
The performance of four row tapered roller bearing is basically the same as that of double row tapered roller bearing, but it bears more radial load than double row tapered roller bearing, and its limit speed is slightly lower. It is mainly used in heavy machinery.
Multi seal double and four row tapered roller bearings, ZWZ provides long-life, multi seal double and four row tapered roller bearings. Carry out personalized new design for bearings, change the traditional design method of fully sealed bearings, and adopt a new sealing structure combining sealing and dust prevention, so as to improve the sealing effect and sealing performance. Compared with open structure bearings, the service life of multi seal double and four row tapered roller bearings is increased by 20% – 40%; Lubricant consumption is reduced by 80%.
Tapping machine bearing Application：
Tapered roller bearings are widely used in machine tool spindles, gear reducers, automotive drive axles, transmissions, rolling mills, mines, metallurgical industries, plastic machinery, household appliances, motors, pumps, machinery and other automotive parts.
Tapping machine bearing Feature:
1. High load carrying capacity
The large number of rollers, which have an optimum conformity with the washer raceways, enables the bearings to accommodate heavy axial and simultaneously acting radial loads.
2. Accommodate misalignment
Tapered roller bearings are self-aligning and can accommodate misalignment .
3. Separable design
Tapered roller bearings are separable, making it possible to mount and dismount the housing washer separately from the shaft washer and roller and cage assembly. In addition this facilitates maintenance inspections.
4. High speed capability
The cage designs and the optimum conformity of the rollers with the washer raceways make the bearings suitable for relatively high speeds.
5. Long service life
The tapered roller profile reduces edge stresses at the roller/raceway contact.
6. Low friction
The optimized roller end / flange contact keeps frictional heat at low level, even at high speeds.
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