$1.60 - $2.50
Min. Order : 10 Pieces

Running smoothly long operating life application 3d printer open type linear bearing

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Port: Ningbo, shanghai
Payment Terms: L/C,T/T
Supply Ability: 10000 Meter/Meters per Week
Precision Rating: HIGH
Place of Origin: Zhejiang China
Cage: steel cage
Service: OEM Customized Services
Material: Chrome Steel
Product's name: open linear bearing
Model Number: LM12GAOP
Feature: Long Operating Life
Brand Name: HL
Quality standard: ISO9001 2008 Standard
Applicable Industries: Building Material Shops,Manufacturing Plant,Food & Beverage Factory,Retail
Quality: Long Life Cycle
Performance: Running Smoothly
Application: Printing Machinery /textile Machinery/3D/CNC
Packaging Detail: Carton
Ningbo Hengli Automobile Parts & Bearing Co., Ltd.
Manufacturer, Trading Company
Response Time
On-time delivery rate
US$ 5,000+
R&D staffs
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Product Description
What is linear bearing? 

Metal linear bearing is a low-cost production of linear motion system for unlimited travel with the cylinder axis. Since the ball bearing point contact with the shaft, so use the load is small. Minimal friction ball rotation, thereby to obtain smooth movement precision. Plastic linear bearings are self-lubricating properties of a linear motion system, the biggest difference is that the metal in the metal linear bearings linear bearings are rolling friction, is the point contact between the bearing and the cylinder axis, so this suited for low load speed movement; while plastic linear bearings are sliding friction is between the bearing surface contact with the cylinder axis, so this low-speed movement for high loads.

Linear bearings are used in conjunction with hardened linear drive shaft. For infinite linear motion systems. Load the ball and quenching transmission shaft because it is the point contact, allowing the load is small, but linear motion, friction smallest, high precision, fast movement.

What are the suffixes and profixes mean? 

"LM"   metric standard type linear bearing  
"LME"  inch standard type linear bearing

"UU"   rubber seals on the both sides of the long type linear bearing 

"GA"   steel retainer type linear bearing 

"OP" open type linear bearing
"AJ" adjustment type linear bearing

*LM...UU: LM...(sylinder), LM...OP(open type), LM...AJ(clearance adustable) 
*LME...UU: LME...(sylinder), LME...OP(open type), LME...AJ(clearance adustable), LM...UU & LME...UU: Long type

*KH: High-precision mini bearing 

Product Name

linear bushing bearing LM12GAOP


Chrome Steel


linear motion ball bearing 12*21*30mm

Seal Type

UU Double Seal Structure 


Printing Machinery /textile Machinery/3D/CNC


individual white box + Carton



1.Smooth movement,low friction,high rigidity and long life.

2.We can make non-standard linear bearing according to clients samples or drawings.

3.Prompt delivery and OEM service.

4.Nice appearance,complete product system.


1.10 years export experience

2.Strict quality control

3.Delivery in time

4.OEM service is available with good prices

5.Your success is our business and future

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1.How long and how can I get quotation from your company?

We will reply you in two hours if getting detailed information during working days.

In order to quote you as soon as possible, please provide us the following information together with your inquiry.

    1). Detailed drawings (CAD/PDF/DWG/IGS/STEP/JPG)

    2). Materials required

    3). Surface treatment

    4). Quantity (per order/per month/annual)

    5). Any special demands or requirements, such as packing, labels,delivery,etc.
2.Can I get samples for testing?

We can offer free samples for small parts, but for big and high-value products, samples will be charged.

3.How about the payment terms?

For new customers, we prefer to use T/T in advance. We can accept L/C, D/P for old customers.

4.If I need urgent delivery, can you help?

Of course! “Customer first” is our company philosophy. You need to tell us the delivery time when placing the order, and we will do our best to adjust the production schedule.

5.How about the transportation?

You can choose any mode of transportation you need, sea delivery, air delivery or express delivery.

6.How about the quality guarantee?

We will make 100% inspection before packing and delivery and make sure the products 100% meet your requirements . If there is any problems during using, please tell us anytime, we will reply you in time

7.Can we sign NDA?

Sure. We never divulge any customer’s information to anyone else.