China bearing distributor 81124 bearing mini tractor/surplus inventory

China bearing distributor 81124 bearing mini tractor/surplus inventory

Detail of thrust roller bearing 81124 

Difference between thrust cylindrical roller bearing and thrust tapered roller bearing

n 1. Axial cylindrical roller bearings and thrust tapered roller bearings for low speed applications, thrust tapered roller bearings speed slightly higher than the thrust cylindrical roller bearings.

n 2. Thrust cylindrical roller bearings are separable bearings, can withstand axial load and a slight impact, can limit the shaft (or shell) axial displacement in one direction, and therefore can be used as a one-way axial positioning. But its carrying capacity is far greater than the thrust ball bearings.

n 3. Roller rolling, because the roller ends of lines at different speeds, the rollers in the ring raceway sliding inevitably arise, therefore, these bearings speed limit lower than the thrust ball bearings, usually only for low speed applications .

n 4.The standard design of the thrust cylindrical roller bearings with machined metal solid cage, according to user requirements, but also other types or materials cage.

n 5. thrust tapered roller bearings can withstand axial load, axial displacement to limit one-way bearing, it can be used as a one-way axial positioning. And thrust cylindrical roller bearings, bearing capacity, sliding a small, but a lower speed limit.

Application of thrust roller bearing

Thrust cylindrical roller bearings are mainly used for heavy-duty machine tools, high-power marine gear boxes, oil rig, electrical and other machinery in the vertical.

Bearing damage reasons

• Ø 1Breakage damage is mainly due to a cage: cage vibration, excessive speed, wear and blockage.
• Ø 2 cage wear worn bearings keep frame by lack of lubrication or caused by abrasive particles.
• Ø 3 raceway blockage sheet material or other hard particles of debris may become a wedge between  the cage and the rolling elements, preventing the latter around its own axis.
• Ø 4 bearing vibration when imported bearing contact vibration, inertia force can be large enough to cause fatigue crack formation cage material time, sooner or later lead to the holder of these crack fracture.
• Ø 5 bearing rotating too fast. If the bearings are designed to run at speeds exceeding holder, the holder may result in being inertial gravity cage fracture. Typically, at very high speeds are related, may be used a specially designed holder bearing selection.
• Ø 6 retainer damage other reasons if a deep groove ball bearings are fitted out of alignment with each other, the ball's path has an oval configuration. Fatigue crack formation and sooner or later they lead to fracture.

Pictures of thrust roller bearing

Packing:

1. For small ones:anti-rust oil+vacuum plastic bag+paper box+wooden box

2. For big ones:anti-rust oil+waterproof belt+professional belt+wooden box

Payment Terms 

L/C ,T/T ,western Union

1. 30% deposit By T/T, Western Union, Paypal, 70% before delivery.

2. 100% L/C at sight 

Other information:

Production Lead time: 7~25days; If we have this item in stock , 2days delivery. 

Delivery Date: within 3-5days after your payment.

Sample: Free, but we don't bear the freight of sample

MOQ: 1 set   Supply Ablility:100000 pcs/Month

Shipping detail:

   1) Less than 45 KGS, we will send by express. ( Door to Door, Convenient )

   2) Between 45 - 200 KGS, we will send by  air transport. ( Fastest and safest, but expensive )

   3) More than 200 KGS, we will send by sea. ( Cheapest, but long time )

Company introduction:

Our factory

       Professional production team, production line, experienced technical experts who engaged in this industry for more than 10 years. We have the professional production line for this bearings:

• 1. Our bearings are made of Chrome Steel, it have better corrosion resistance, hardenability and toughness. 
• 2. Double Seal: Adopt nature rubber, make it hard for dirt and grime to get in, running more quietly.
• 3. Cage: Also made of Chrome Steel, it is more durable than Carbon Steel bearings. 
• 4. Capacity: 500000 PCS/MONTH

Why buy from us?
1.Highest quality and most competitive price----we are the only one manufacture who adopts import raw materials. Low bad rates, is just 0.1%. It is amazing, and with cheap price and guaranteed quality.
2.Delivery fast -----Goods be sent out within 7 to 15 days based on order quantity.
3.Professional-----We are special in source and sells, as development, methods, conjugations, and handling.
4.Best service-----Answering e-mails or solving questions timely. Delivery and update information on time. Trust, good quality and service are the basic of long term business.

 If you are interested in our bearing,pls feel free to contact me.Thank you.