Product Description
Model NO.: 51204/51304/51105/51205
The Number of Rows: Double
Material: Bearing Steel
Load Direction: Thrust Bearing
Model Type&Number: Thrust Ball Bearing
Size(mm): 20*40*14
Clearance: C2, C0, C3, C4, C5
Bearing Material: Bearing Steel
Gease Lub/Oil Lub(R/Min): 3800/5300
Trademark: ITJ
Origin: Liaocheng, Shandong in China
Rolling Body: Ball Bearings
Outer Dimension: Small (28-55mm)
Spherical: Aligning Bearings
Separated: Separated
Brand: Itj,NSK,SKF,NTN,Koyo,Timken,OEM Is Available
Weight(Kg): 0.08
Vibration: Z1V1, Z2V2, Z3V3
Application: Crane and Water Pump
Cr&Cor(Kn): 16.2/27.5
Specification: SGS Certificate
HS Code: 8482103000
Crane and water pump using Axial load Thrust ball bearing
1.Product description
This thrust Ball Bearing is used for Crane and water pump Agricultural machinery,textile machinery,transportation systems,Automobiles, Rolling Mill , mining, metallurgyor construction machinery,papermaking and speed reducer,spindle, internal combustion engines, generators, gas turbines, reducer,Crane and water pump,etc.
Material | Gcr15(stainless steel) Material/stainless steel |
Quality | P0,P6,P5,P4,P2 |
Cage,Retainer | MB , CA , CC ,E |
size | 20*40*14mm |
type | angular contact ball bearing |
Certificate | SGS |
Service | OEM&ODM |
Market | America,Europe,Africa,Oceania,Asia |
Application | used in many areas of large steel mills, papermaking and speed reducer,aviation,aerospace,marine,railway,metallurgy,steel, mining,electricity,machinery manufacturing,printing, electronics,textiles,food,chemical,automoti,spindle, internal combustion engines, generators, gas turbines, reducer |
2.More Products
boundary dimensions(mm) | Basic Load ratings(KN) | Limiting speeds(r/min) | Bearing No. | Weight(kg) |
d | D | B | Cr | Cor | grease lub | oil lub |
10 | 24 | 9 | 7.22 | 10 | 6300 | 9000 | 51100 | 0.02 |
10 | 26 | 11 | 9.78 | 13.5 | 6000 | 8000 | 51200 | 0.03 |
15 | 28 | 9 | 8.15 | 13.5 | 5600 | 8000 | 51102 | 0.024 |
15 | 32 | 12 | 12.2 | 19.5 | 4800 | 6700 | 51202 | 0.045 |
17 | 30 | 9 | 8.35 | 14.5 | 5300 | 7500 | 51103 | 0.03 |
17 | 35 | 12 | 13.2 | 21.8 | 4500 | 6300 | 51203 | 0.053 |
20 | 35 | 10 | 11 | 19.8 | 4800 | 6700 | 51104 | 0.04 |
20 | 40 | 14 | 16.2 | 27.5 | 3800 | 5300 | 51204 | 0.08 |
20 | 47 | 18 | 27 | 44.5 | 3600 | 4500 | 51304 | - |
25 | 42 | 11 | 11.8 | 24.2 | 4300 | 6000 | 51105 | 0.06 |
25 | 47 | 15 | 21.2 | 40.2 | 3400 | 4800 | 51205 | 0.12 |
25 | 52 | 18 | 27.5 | 49 | 3000 | 4300 | 51305 | 0.18 |
30 | 47 | 11 | 12.2 | 27.2 | 4000 | 5600 | 51106 | 0.07 |
30 | 52 | 16 | 21.5 | 43.2 | 3200 | 4500 | 51206 | 0.14 |
30 | 60 | 21 | 36.2 | 66.8 | 2400 | 3600 | 51306 | 0.27 |
35 | 52 | 12 | 15.8 | 35.8 | 3800 | 5300 | 51107 | 0.08 |
35 | 62 | 18 | 30.2 | 62.5 | 2800 | 4000 | 51207 | 0.22 |
35 | 68 | 24 | 42.8 | 83.5 | 2000 | 3200 | 51307 | 0.39 |
40 | 60 | 13 | 20.2 | 50.2 | 3400 | 4800 | 51108 | 0.12 |
composition
Thrust ball bearing:
Thrust ball bearing seat, shaft ring and ball cage components of three parts.
Cooperate with axis of said axial circle, cooperate with shell said seat.
variety
According to stress distribution points one-way Thrust Ball Bearings and two-way thrust ball bearings.One-way thrust ball bearings, affordable one-way axial load.
Bidirectional thrust ball bearing, it can be subject to bi-directional load, the axial circle and axis to cooperate.Seat installation are angled Spherical Bearing , has the self-aligning properties, can reduce the influence of the installation error.
Thrust ball bearing can't bear radial load, limit rotational speed is low.
characters
1. Equipped with one-way, two-way two types
Thrust ball bearings, (4) 2. In order to allow installation error, either one-way or two-way, can choose spherical self-aligning spherical seat cushion type or spherical seat type.
3. The high quality steel - used can extend bearing life highest 80% super clean steel
4. The height of the grease technology - NSK lubricants technology can make the life extension of the grease and improve the performance of the bearing
5. The high grade ball - quiet and smooth when high-speed rotation
6. Use of options in the ring, can allow installation error.
application
Thrust ball bearings application:
Applies only to bear a part of the axial load and low speed, such as crane hook, vertical pumps, vertical centrifuge, jack, low speed reducer, etc.The shaft of the bearing ring, race and rolling elements are separated, can wear &erosive respectively.
Installation
Thrust ball bearing assembly point, there are two. One is to keep the frame with Steel ball bonding quality control, the other is a nominal highly T control after bearing assembly.In addition, due to the shaft ring and seat are separable, bring a management problem. Is to prevent conventional imported Bearing parts .M type punching cage use flanging die assembly. After pressing for steel ball in the pocket hole flexible rotation, but can not fall off from the pocket hole, and technical discipline inspection steel ball in the hole in the pocket up momentum.Entities cage stamping pressure too deep will make small steel ball up momentum, and bumps on the stamping connection with cage too little and strength is insufficient, prone to falling phenomenon, caused cage to waste.Small thrust ball bearing race and shaft circle diameter is slightly different, the two sets of group there was no significant difference. In order to prevent mixing phenomenon, namely loading into a set of bearing clay a set of trapped or are shaft is a circle.This needs to take certain measures. Usually the set of the assistive tools draw a distinction between smoke ring, group, or before sampling nominal height with inner diameter gauge inspection, in order to check the inner diameter is convenient, put under the seat, shaft ring above.If a cabinet inside have obvious quench heating oxidation color or not after grinding, it should not be necessary to test diameter, can obviously see the difference between shaft and seat, not easy to mix.Thrust ball bearing assembly for nominal high T measure, after confirmation is best qualified.Block or standard calibration, measured in height, and measured load, bearing rotating dozens of times, it is important to reach the minimum height.
When the thrust ball bearings under the condition of high speed operation, steel ball and raceway radial plane of the contact Angle will be influenced by centrifugal force, causing steel ball relative sliding groove.This adhesive wear damage caused by sliding bearings.To prevent the damage, must ensure that the minimum load, thrust ball bearings are see formula formula 1 or 2, highly actie. Take calculated value.
Formula 1: Famin n * n = K
Formula: 2 Famin = Coa / 1000
Famin: minimum axial load (N)
K: minimum axial load coefficient
N: speed (per minute)
Coa: basic rated static load (N)
One-way thrust ball bearings can withstand a load of one direction only, if the bear the load of two directions, must choose a two-way thrust ball bearings.Thrust ball bearing must be minimum load or pre load.When axis vertical shaft is usually more than the weight of the minimum load.At this time due to the influence of axial load in the opposite direction, is likely to reduce the effect of load.
operating principle
Separated type thrust ball bearing is a bearing, shaft ring, can seat and cage, ball component separation.Shaft is made to match the shaft ring, a circle is to match the bearing hole of the ring, and there are gaps between shaft;Thrust ball bearings can only carry axial load, one-way thrust ball bearing is can only carry axial load in one direction, two-way thrust ball bearings can withstand axial load in two directions;Thrust ball bearing can't limit shaft radial displacement, limit rotational speed is low, one-way thrust ball bearing can limit the one direction of the axis and shell of axial displacement, two-way bearing can limit the axial displacement of two direction.
Separated type thrust force ball bearing is a bearing, shaft ring, can seat and cage, ball component separation.Shaft is made to match the shaft ring, a circle is to match the bearing hole of the ring, and there are gaps between shaft;Thrust ball bearing shaft can only carry axial load, one-way thrust ball bearing is can only carry axial load in one direction, two-way thrust ball bearings can withstand axial load in two directions;Thrust ball bearing can't limit shaft radial displacement, limit rotational speed is low, one-way thrust ball bearing can limit the one direction of the axis and shell of axial displacement, two-way bearing can limit the axial displacement of two direction.
Thrust Roller bearing is used to carry axial load for main shaft, the radial joint load, the radial load shall not exceed 55% of the axial load.Compared with other
Thrust Roller Bearings, the bearing friction factor is low, high speed, and has a self-aligning performance.Type 29000 stick for asymmetric
Spherical roller bearing, can reduce the relative sliding roller and race in the work, and roller is long, large diameter, roller number, high load capacity, usually adopt oil lubrication, individual is lubricated by grease at low speed.While selecting a design, should first selection;80000 type thrust
Cylindrical Roller Bearings, the type 90000 type thrust
Tapered Roller Bearing and AXK thrust
Needle Roller Bearing, can bear the axial load of one-way, it is bigger than thrust ball bearing axial load capacity is much, and large rigidity, axial space is little.Thrust cylindrical roller bearings, thrust Needle roller bearing is suitable for low speed, speed slightly higher than the thrust tapered Roller Bearing thrust cylindrical roller bearings.
3.Main products ,Packing&Testing
Packing details | 1 piece/Transparent plastic bag/inner box,1 plastic bag/carton/medium package,60 pieces/master carton 1 pc net weight:0.015kg,gross weight:0.016kg medium package:10*25*9mm master carton:20*75*90mm |
Delivery details | 5-25 working days after payment |
4.Company and factory information
we made industry and trading company integrated.meaning have our own factory,manufacturing
Deep Groove Ball Bearing,tapered roller bearing, Pillow Block bearingand
Spherical Roller Bearing,professionally
engaged in imported bearings sales, which main imported products of NSK,NTN,KOYO,and TIMKEN and so on. We also have products
of domestic brands, such as ZWZ,HRB,and LYC. Our products are involved
in space flight,aviation, metallurgy, petrochemical, electric,power,
steel, railways, printing, food, medicine, chemical industry, mining machinery, construction
machinery, road construction machinery and other fields. Welcome the friends both in domestic
and abroad to come here for inspection and business negotiation.
5.Advantage
a.Price advantage compare with the trading company, as we have our own factory
b.Compare with the factory we are easy communicated.
c.our products were produced under strict quality test system.
d.More than many years industry experience
e.Accept OEM, customization, customers' logo
f.Our factory has various sizes bearing in stock.So we will arrange to send delivery within 3 days after received the payment from the buyers.
g.Welcome mini order
h.Multiplex-method of payment: Western Union, paypal, T/T, L/C at sight
i.Special discount and protection of sales area provide to our distributors.
j.We are worthy of an enquiry.
6.Aftersales service
Quality is the life of an enterprise, in order to make customers satisfactory products, we make the following commitment.
Products are inspected qualified when they leave the factory as stipulated in the national standard and customer requirements.
The service life of bearing reached the international standard and customer requirements.
According to the national standard regulations and customer requirements for bearing inner and outer packing, Ensure that no problem during the transit.
Any quality problem appeared in the bearing products, it should be solved according to the provisions of the customer service commitment in time.
If customer have any special quality requirement to the bearing products
Welcome friends from all over the world to visit, make a telephone or sent a letter to negotiate the business.
Thank you for your visiting
Contact us if you need more details on Thrust Ball Bearing. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Low Noise Ball Bearing、Bearing. If these products fail to match your need, please contact us and we would like to provide relevant information.
Product Categories : Thrust Ball Bearings