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Product name: Combined needle roller bearing
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Price: ASK
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Post date: 2016-12-19
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Stock Quantity: 1000
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Quantity:
Description:
Combined needle roller bearing is a bearing unite composed of radial needle roller bearing and thrust bearing parts. It features compact structure,small size and high rotating accuracy and bearing certain axial load while holding very high radial load. It has multiple structure styles,broad adaptability and easy installation. Further more it can be inlayed with IR standard ring. It is widely used in machine toll,metallurgical,textile and printing machinery. This bearing can make the design of machine system highly compact and nimble.
Types of Designs:
This kind of bearing is combination unit between radial needle rollers and full-component thrust balls, thrust cylindrical rollers or otherwise angular contact balls. It can bear one-way or two-way axial load. Special structure can be designed as well according to the requirement of customers.
Product Precision Accuracy:
Dimensional tolerance and geometrical accuracy is based on JB/T8877
Mutual difference of needle roller diameter is 2um,and the precision is class G2(ISO GB/T309)
The diameter of inscribed circle conforms to tolerance class F6 before the fitting of outer ring with cage and roller assembly.
Bearing radial running clearance conforms to the value defined by class0 GB/T4604
Special accuracy grad is based on GB/T307.1
Material:
Material for needle roller is GCr15 bearing steel,quench-hardening HRC60-65
Material for inner and outer ring is GCr15 bearing steel ,quench-hardening HRC60-65
Material for cage is quality low-carbon steel or reinforced nylon.
Special Directions:
Axial load of NKIA,NKIB series of bearing is not allowed to exceed radial load by 25%
Being used for supporting alternative radial load,it must be installed in opposition.
Thrust bearing parts must exert preload up to 1% of axial basic rated static-load.
When plastic cages are used (suffixed with TN),operating temperature is not allowed to surpass +120℃ during continuous work.
Thrust bearing parts can move freely in bearing bracket.
For general-disposition design of bearings, refer to the relevant recommendation in the applied technology of rolling bearings.
Combined needle roller bearing is a bearing unite composed of radial needle roller bearing and thrust bearing parts. It features compact structure,small size and high rotating accuracy and bearing certain axial load while holding very high radial load. It has multiple structure styles,broad adaptability and easy installation. Further more it can be inlayed with IR standard ring. It is widely used in machine toll,metallurgical,textile and printing machinery. This bearing can make the design of machine system highly compact and nimble.
Types of Designs:
This kind of bearing is combination unit between radial needle rollers and full-component thrust balls, thrust cylindrical rollers or otherwise angular contact balls. It can bear one-way or two-way axial load. Special structure can be designed as well according to the requirement of customers.
Product Precision Accuracy:
Dimensional tolerance and geometrical accuracy is based on JB/T8877
Mutual difference of needle roller diameter is 2um,and the precision is class G2(ISO GB/T309)
The diameter of inscribed circle conforms to tolerance class F6 before the fitting of outer ring with cage and roller assembly.
Bearing radial running clearance conforms to the value defined by class0 GB/T4604
Special accuracy grad is based on GB/T307.1
Material:
Material for needle roller is GCr15 bearing steel,quench-hardening HRC60-65
Material for inner and outer ring is GCr15 bearing steel ,quench-hardening HRC60-65
Material for cage is quality low-carbon steel or reinforced nylon.
Special Directions:
Axial load of NKIA,NKIB series of bearing is not allowed to exceed radial load by 25%
Being used for supporting alternative radial load,it must be installed in opposition.
Thrust bearing parts must exert preload up to 1% of axial basic rated static-load.
When plastic cages are used (suffixed with TN),operating temperature is not allowed to surpass +120℃ during continuous work.
Thrust bearing parts can move freely in bearing bracket.
For general-disposition design of bearings, refer to the relevant recommendation in the applied technology of rolling bearings.
