BK 1312 Drawn Cup Needle Roller Bearings With Closed Ends CJW

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
10 set
Supply Capability:
100000 set/month

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Product Description:

Quick Details

Type:

Needle

Brand Name:

OEM

Bore Size:

13 mm

Outside Diameter:

19 mm

Model Number:

BK1312

Precision Rating:

ABEC-1

Seals Type:

Open or Sealed

Number of Row:

Single Row

Place of Origin:

Jiangsu, China (Mainland)

Material:

Chrome Steel

Lubrication:

Grease Lubrication

Package:

Plastic Bag and Box

Equivalent:

BK 1312







Packaging & Delivery

Packaging Details:1. industry packing: industry paper or tube + carton+ pallet 2. individual packing: single colour box+ carton+ pallet 3. based on the customers' requirement
Delivery Detail:1. within 5 days for stock 2. 18-25 days for big quantity



FAQ

Q:  I have a urgent order , and want to find a good supplier in short time ,what should i do ?

A: Please send your inquiry to me ,and tell me ,the model ,quantity ,material ,package ,precision ,you need ,i will give you a quick response.

 

Q:  How can i get a price with a discount ?

A:  Discount according to orders .Bigger order ,less money every bearing will cost ,then discount will be bigger . 

 

Q:  I have a trial order ,the quantity is little ,could you manufacturing it for me ?

A:  Please contact me ,i will tell you the MOQ.If you also need we design the single box for you ,we could make it for you ,and the extra cost of the order will return you by next official order.

 

Q:  I don’t know your factory before ,could you tell me which company you are cooperating now ? I want to get to know your factory?

A:  Sorry ,this is our company regulation :we should not let the information of our customer out ,in the same time ,we also keep your information confidential.If you want to know more information ,you could get some free sample from our factory or visit factory if you have the time .

 

Q:  Does your company could accept D/P or D/A payment terms?

A:  The payment terms of our company is :30% deposit by T/T or West Union ,70 % balance against the copy of B/L.

 

Q:Now i have a important order ,the quality must be good ,and my customer will test the goods when receive it ,the quality must be good ,can i trust you ?

A:Our manufacturing factory was founded in August 1998, with so many years professional experience,if you need some certificate to show for your customer ,please inform us ,we believe could help you to enlarge your market!

 


Package:

1.Industry package: Plastic paper+Kraft paper,10pcs or 5pcs/roll

2.Plastic tube: 10pcs/tube or 5pcs/tube

3.Single box: plastic bag+single box, OEM supply

4.Single wooden box: plastic bag+single wooden box

5.Carton: or as your need.

6.Pallet: Wooden

 

 

BK 1312 Drawn Cup Needle Roller Bearings With Closed Ends CJW

BK 1312 Drawn Cup Needle Roller Bearings With Closed Ends CJW

 




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Q:How much speed can the needle bearing of inner bore 17mm bear?
This depends on the lubrication, lubricating oil viscosity, pressure is different, allowing the speed is also different
Q:What is the bearing capacity of needle bearing and copper sleeve?
The copper sleeve and the shaft are surface contact, and the bearing capacity is large;The needle roller of needle roller bearing is several line contact, and it has less bearing capacity than copper sleeve;The sliding friction, friction force is large, suitable for low speed and heavy load, preferably with good lubrication, in static pressure under the condition of high speed, such as grinding machine is of high speed and heavy load static and vibration resistance than good bearing;The latter is rolling friction, and the transmission efficiency is higher, suitable for medium speed.
Q:What are the differences between cylindrical roller bearings and needle roller bearings?
What are the differences between cylindrical roller bearings and needle roller bearings? In particular, if the roller and needle diameter is about the same, cylindrical roller bearings and inner ring needle roller bearings seem to be difficult to identify it
Q:What are the needle roller bearings with an inner diameter of 14, an outer diameter of 20 and a width of 20?
Is the needle roller and cage assembly? Or with stamping outer ring needle roller bearings?
Q:Needle roller bearing is also called cam bearing?
Needle roller bearings are needle roller bearings
Q:What are the differences between needle roller bearings and cylindrical roller bearings?
Mainly the difference between rolling bodiesThe needle length and diameter ratio (aspect ratio) is greater than 3, less than 5 mm in diameterThe cylindrical length and diameter ratio (aspect ratio) is less than 3, greater than 5 mm in diameter
Q:Roller needle roller bearings can be used directly as a wheel?
Under better working conditions, it can be used as a wheel. There may be problems in using the wheel as a poor condition;Bad conditions are high speed (high temperature), high load (no wheel is not related), rigid contact (accelerated external hub wear), high frequency vibration caused by uneven contact surface, high temperature environment.In general, the use of wheels can lead to higher speed and faster wear.
Q:The difference between NK type and NKI type in needle roller bearings
NK and NKI are light series needle roller bearings. The difference is that one with inner ring and one without inner ring. The following problems are shown. Relevant technical data of the model are compared. Are they in line with your requirements?:INA needle roller bearing NK40/20-TVLight seriesFw 40, mmD 50, mmC 20, mmRmin 0,3 mmM 78 g qualityCr 26000 N basic rated dynamic load radialC0r 47000 N basic rated static load radialCur 6700 N fatigue limit load, radialNG 10900 1/min limit speedNB 6400 1/min reference speedINA needle roller bearing NKI35/20-TVLight seriesD 35, mmD 50, mmB 20, mmF 40, mmRmin 0,3 mmS, 0,5, mm axial displacement distanceM 122 g qualityCr 33500 N basic rated dynamic load radialC0r 56000 N basic rated static load radialCur 9800 N fatigue limit load, radialNG 11500 1/min limit speedNB 6200 1/min reference speed
Q:Which method should be used for axial fixing of needle roller bearing in stamping outer ring?
For the shaft, the bearing seat is fixed in the case, if the load direction remains unchanged, then take the shaft and cone fitting, the bearing seat and the outer loose. But the press pin of the outer ring is different. The outer ring and the bearing seat of the outer ring needle roller bearing must be tightly matched, or interference fit, because the roundness of the raceway of the outer ring can be ensured. However, another function of interference fit is to a certain degree of fixed outer ring. For needle rollers, most of them are sufficient. Do not forget the characteristics of needle roller bearings - they do not bear axial force. Then, when installing, can I use the seat block to limit the position? The answer was No. Please note the stamping of the outer ring bearing, both sides are asymmetrical. In order to fit the needle and cage, one lip of the outer ring needs annealing so it is very soft. Because it is very soft, so the installation of this side can not be pressed to the end cap or shoulder and so on. The correct installation method is the installation tool and do a simple calculation of some, there is no longer enough.
Q:Many one-way needle roller bearings have small holes in the inner and outer rings. What's the function of these small holes?
It should be the oil storage hole, whose main function is to store grease and lubricate the needle roller.

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