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linear bearing shaft NA6912 iko linear

Needle bearings use a roller style rolling element to reduce friction of a rotating surface. Needle Bearings have a high load carrying capacity with a very small cross section height. They are available with or without an inner ring. The needle rollers are guided parallel to the axis using a cage retainer, thrust bearings can also be supplied with no retainer, which is referred to as a full complement of rollers.


Product Specification:

  • Type Needle
  • Brand Name IKO
  • Model Number NA6912
  • Place of Origin Japan
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linear bearing shaft NA6912 iko linear

Product

linear bearing shaft-1

 

What is  linear bearing shaft / needle roller bearing?                                                                                      
Needle bearings / linear bearing shaft use a roller style rolling element to reduce friction of a rotating surface. Needle Bearings / linear bearing shaft have a high load carrying capacity with a very small cross section height. They are available with or without an inner ring. The needle rollers are guided parallel to the axis using a cage retainer, thrust bearings can also be supplied with no retainer, which is referred to as a full complement of rollers.

Needle bearings / linear bearing shaft have a larger surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less clearance, or the difference between the diameter of the shaft and the diameter of the bearing, so they are much more compact. The typical structure consists of an inner race (or sometimes merely a shaft), a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race.Needle bearings are heavily used in engine components such as rocker arm pivots, pumps, compressors, and transmissions.

A needle roller bearing / linear bearing shaft is a bearing which uses small cylindrical rollers.The difference between a needle roller bearing and roller bearing is the ratio of diameter and length of their rollers, when the ratio of the diameter and the length of roller of a roller bearing is between the interval of 0.1 to 0.4, that roller bearing is called a needle roller bearing. They are used to reduce the friction of a rotating surface.

Needle bearings / linear bearing shaft have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact. The typical structure consists of a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race (sometimes the housing itself).

Radial needle bearings / linear bearing shaft are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles.

Full complement bearings have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the largest possible number of rolling elements, they have extremely high radial load carrying capacity and are suitable for particularly compact designs. 

What are the applications of  linear bearing shaft / Needle Roller Bearings?                               

linear bearing shaft / Needle bearings are heavily used in automobile components such as rocker arm pivots, pumpscompressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.

Additional clarification of needle roller bearing / linear bearing shaft : According to "Marks' Standard Handbook for Mechanical Engineers", a needle bearing / linear bearing shaft is a roller bearing with rollers whose length are at least four times their diameter.

• Paper moving for copiers, fax machines, paper towel dispensers, etc.
• Exercise equipment
• Two-speed gearboxes
• Rack indexing drives
• Converters, non-return devices and transcendental clutches. 
• Fishing Reels, RC Cars, RC Helis, RC Engines 
linear bearing shaft

FAQ:

1,Q: Are you trading company or manufacturer ?

A: We are factory.

2,Q: How long is your delivery time for linear bearing shaft ?

A: Generally it is 3-5 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

3,Q: Do you provide samples for linear bearing shaft ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

4,Q: What is your terms of payment for linear bearing shaft ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,pay the balance before shippment.

5, Q:Could you accept OEM and customize?

A:YES,we can customize for you according to sample or drawing.

6, Q: When can I get the price?
A:  after we get your inquiry, usually within 2-6 hours. Urgent will be faster.

7,Q:How about your quality of linear bearing shaft ?

A:Our quality of bearings is based on ISO9001 and quality of bearing is our soul.

8, Q: What is the MOQ of your products?
A: Usually ≥1, According your demand.

9,Q: Will you check these products before shipment?

A: Yes, before shipment products will be strictly inspection on our factory QC Process System.We have a professional QC team.

10, Q: What will we do if  you are not satisfied with the product?
A: If have any abnormal, Please contact us at first time, we will immediately processing.

If you need linear bearing shaft or any models of bearings, please contact me!

Contact: Grace
Email: ntn@llhbearing.com
Skype:+8618668903871
MP/Whatsapp: 008618668903871
Wechat:GraceXu1314

Product Name
linear bearing shaft NA6912 iko linear
Material
Chrome Steel Gcr15
Number of Row
Single Row
Seals Type
Open
Precision Rating
P0 P6 P5 P4 P2
Cage
Steel Cage.copper Cage.nylon Cage
Feature
 Long Life
Service
OEM Customized Services

linear bearing shaft-01

NO. NO. SIZE (MM) BASIC LOAD RATING                (KN) LIMITING SPEED
with inner without inner d Fw D C rs/min C0  r/min
Need Roller Bearing NA495 RNA495 5 7 13 10 0.15 2.24 2.02 27200
Need Roller Bearing NA496 RNA496 6 8 15 10 0.15 3.14 2.62 25600
Need Roller Bearing NA497 RNA497 7 9 17 10 0.15 2.44 2.77 24000
Need Roller Bearing NA498 RNA498 8 10 19 11 0.2 4.71 3.82 22400
Need Roller Bearing NA499 RNA499 9 12 20 11 0.3 5.02 4.79 20800
Need Roller Bearing NA4900 RNA4900 10 14 22 13 0.3 8.5 9.2 25000
Need Roller Bearing NA4901 RNA4901 12 16 24 13 0.3 9.4 10.9 24000
Need Roller Bearing NA4902 RNA4902 15 20 28 13 0.3 10.6 13.6 22000
Need Roller Bearing NA4903 RNA4903 17 22 30 13 0.3 11 14.6 21000
Need Roller Bearing NA4904 RNA4904 20 25 37 17 0.3 21 25.5 17000
Need Roller Bearing NA49/22 RNA49/22 22 28 39 17 0.3 22.8 29.5 16000
Need Roller Bearing NA4905 RNA4905 25 30 42 17 0.3 23.6 31.5 15000
Need Roller Bearing NA49/28 RNA49/28 28 32 45 17 0.3 24.4 33.5 13000
Need Roller Bearing NA4906 RNA4906 30 35 47 17 0.3 25 35.5 13000
Need Roller Bearing NA49/32 RNA49/32 32 40 52 20 0.6 30.5 47.5 12000
Need Roller Bearing NA4907 RNA4907 35 42 55 20 0.6 31.5 50 11000
Need Roller Bearing NA4908 RNA4908 40 48 62 22 0.6 43 67 9500
Need Roller Bearing NA4909 RNA4909 45 52 68 22 0.6 45 73 8500
Need Roller Bearing NA4910 RNA4910 50 58 72 22 0.6 47 80 8000
Need Roller Bearing NA4911 RNA4911 55 63 80 25 1 58 100 7500
Need Roller Bearing NA4912 RNA4912 60 68 85 25 1 60 108 7000
Need Roller Bearing NA4913 RNA4913 65 72 90 25 1 61 112 6500
Need Roller Bearing NA4914 RNA4914 70 80 100 30 1 84 156 6000
Need Roller Bearing NA4915 RNA4915 75 85 105 30 1 86 162 5500
Need Roller Bearing NA4916 RNA4916 80 90 110 30 1 89 174 5000
Need Roller Bearing NA4917 RNA4917 85 100 120 35 1.1 111 237 4800
Need Roller Bearing NA4918 RNA4918 90 105 125 35 1.1 114 250 4300
Need Roller Bearing NA4919 RNA4919 95 110 130 35 1.1 116 260 4400

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