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Year

Make

Model

Year

Vehicle

Product

Products

CB0548(CB0548)

Parts

BALL JOINT

Status

Sale

Position

FRONT AXLE LOWER

Weight(g)

473

Install Guide

Caution Point

Ball Joint Attach. Type	BOLT-ON
Stud Center To End (mm)	86.60
Socket Hole Quantity	2
Hole 1-2 (mm)	70.00
Includes Bolts (for Socket)	YES
Bolt (for Socket) Length (mm)	26.4
Bolt (for Socket) Thread (mm)	M10xP1.5
Includes Nuts (for Socket)	NO
Includes Washers (for Socket)	NO
Stud Thread	M14xP1.5
Stud Taper Type	TAPER 1/8
Includes Bolts (for Stud)	NO
Includes Nuts (for Stud)	YES
Includes Washers (for Stud)	NO
Note

FOR OEM No : Part number of the parent product that contains this product.

31 12 1 096 425
31 12 6 756 491
31 12 6 768 988

BMW	320d	2007 ~ 2011	E90
BMW	320d Coupe	2007 ~ 2008	E92
BMW	320d Touring	2007 ~ 2008	E91
BMW	320d xDrive	2008 ~ 2011	E90
BMW	320d xDrive Coupe	2008 ~ 2011	E92
BMW	320d xDrive Touring	2008 ~ 2012	E91
BMW	320i	2007 ~ 2011	E90
BMW	325i	2005 ~ 2011	E90
BMW	325i Coupe	2006 ~ 2008	E92
BMW	325i Touring	2005 ~ 2008	E91
BMW	325i xDrive	2008 ~ 2011	E90
BMW	325i xDrive Coupe	2008 ~ 2012	E92
BMW	325i xDrive Touring	2008 ~ 2012	E91
BMW	330d	2005 ~ 2008	E90
BMW	330d Coupe	2006 ~ 2008	E92
BMW	330d Touring	2005 ~ 2008	E91
BMW	330d xDrive	2008 ~ 2011	E90
BMW	330d xDrive Coupe	2008 ~	E92
BMW	330d xDrive Touring	2008 ~ 2012	E91
BMW	330i	2005 ~ 2008	E90
BMW	330i Coupe	2006 ~ 2009	E92
BMW	330i Touring	2005 ~ 2012	E91
BMW	330i xDrive	2008 ~ 2011	E90
BMW	330i xDrive Coupe	2008 ~	E92
BMW	330i xDrive Touring	2008 ~ 2012	E91
BMW	335i	2007 ~ 2011	E90
BMW	335i Coupe	2007 ~ 2008	E92
BMW	335i Touring	2007 ~ 2008	E91
BMW	335i xDrive	2008 ~ 2011	E90
BMW	335i xDrive Coupe	2008 ~	E92
BMW	335i xDrive Touring	2008 ~ 2012	E91
BMW	X1 xDrive 18d	2009 ~	E84
BMW	X1 xDrive 20d	2009 ~	E84
BMW	X1 xDrive 20i	2011 ~	E84
BMW	X1 xDrive 23d	2009 ~	E84
BMW	X1 xDrive 25d	2012 ~	E84
BMW	X1 xDrive 25i	2010 ~ 2012	E84
BMW	X1 xDrive 28i	2009 ~	E84
BMW	X5	1999 ~ 2006	E53

Flange nut with self-locking function

2021-11-09 15:55:53

<div style="text-align: center;" align="center"><img title="7ad9838d0cdbcdd8948c9ffcb149df2f.jpg" src="../../../smartEditor/upload/7ad9838d0cdbcdd8948c9ffcb149df2f.jpg"></div>
<div style="text-align: center;" align="center"> </div>
 
Did you know that flange nuts also have a self-locking function? Nylon lock nuts increase friction as the nylon fills between the ball stud and nut. As a result, it is tightened securely that will last from harsh weather or vibrations. (<a href="../../../Product/TechnologyDetail?boardNo=45&dataNo=61" target="_self">https://aftermarket.ctr.co.kr/Product/TechnologyDetail?boardNo=45&dataNo=61</a>)
 
<img title="a053e1903d71afe91b5f385d77465788.jpg" src="../../../smartEditor/upload/a053e1903d71afe91b5f385d77465788.jpg"> 
 
If you look at the flange nut from top view, you may see a mark pressed in square shape. This is designed to perform a role as self-locking. 
  
<div style="text-align: center;" align="center"><img title="2423c957bbdd0e37d681225b6125985e.jpg" src="../../../smartEditor/upload/2423c957bbdd0e37d681225b6125985e.jpg"></div>
 
A slightly crumpled nut tightens the ball stud with strong force, which prevents the nut from loosening due to vibration or impact generated while driving. According to the specifications, it has 3 times more tightening force than nylon nuts. CTR understands the OE design and applies the appropriate self-locking nuts.

Did you know that flange nuts also have a self-locking function?Nylon lock nuts increase friction as the nylon fills between the ball stud and nut. As a result, it is tightened securely that will last from harsh weather or vibrations.(https://aftermarket.ctr.co.kr/Product/TechnologyDetail?boardNo=45&dataNo=61) If you look at the flange nut from top view, you may see a mark pressed in square shape.This is designed to perform a role as self-lo...

Sealing Strength

2021-07-12 00:51:16

<img src="/smartEditor/upload/1f75a444835a8d019d86d96a6fd64073.png" title="1f75a444835a8d019d86d96a6fd64073.png" style="max-width:900px"> The
ball joint is sealed with a rubber boot and socket surrounding the ball stud and ball seat.The
sealed structure also prevents the ingress of foreign substances, but it also affects the performance of the ball joint. When sealing,
the pressure applied to the internal parts affects the performance of the ball
joint, such as torque and clearance. <img src="/smartEditor/upload/e6f779295f8d09655ffa05f6b510b5bf.png" title="e6f779295f8d09655ffa05f6b510b5bf.png"> In addition, the strength of the sealed
part is a very important factor in the durability of the ball joint.Suspension
parts receive a lot of load
while driving.
If the seal is destroyed because it cannot withstand the load, a serious
accident may occur.  <div style="text-align: center;" align="center"><img src="/smartEditor/upload/8234fffeede662e87daace91e8d73d1d.png" title="8234fffeede662e87daace91e8d73d1d.png"> </div>  There are various methods of sealing. There are products made entirely of
plastic, and there is also a method of pressing a steel socket. Among them
is "caulking", which compresses a steel socket with a rotating roller. As mentioned earlier, the strength of the caulking is directly related to the durability of the product. To prevent damage to the caulking area, CTR developed a ball joint that can withstand high pressure through design optimization. <div style="text-align: center;" align="center"><img src="/smartEditor/upload/fcaa3918701d9d365b8fb1f9d49c85dd.png" title="fcaa3918701d9d365b8fb1f9d49c85dd.png" style="max-width:900px"> <div style="text-align: left;" align="left"> </div><div style="text-align: left;" align="left">The photo is a test called "Push out test". This
test measures the strength of the caulking part by applying force to the
product.</div></div><div align="left">

The table shows the push-out
specifications of OE products and actual test data of CTR products. As a result
of testing, it has about twice the strength required by the OE brand. It can be seen that even if
there is some damage or rust in the caulking part, it is not easily broken
because it has very high strength. CTR has been an OE Supplier for many
years. We are making safer and
higher-performance products with data and know-how accumulated over a long
period of time.</div>

The ball joint is sealed with a rubber boot and socket surrounding the ball stud and ball seat.The sealed structure also prevents the ingress of foreign substances, but it also affects the performance of the ball joint.When sealing, the pressure applied to the internal parts affects the performance of the ball joint, such as torque and clearance. In addition, the strength of the sealed part is a very important factor in the durability of the ball joint.Suspension parts rec...

Necessity of prescribed torque tightening

2020-05-21 13:35:55

<img title="96e5014f1db1e2e21a59ffb85d3f6f79.jpg" src="/smartEditor/upload/96e5014f1db1e2e21a59ffb85d3f6f79.jpg"> Many auto parts are fixed by bolting, and there are various sizes and shapes of bolts and nuts used. And most bolting operations have a specified tightening force (=torque). Even parts that require uniform force on the contact surface have a fixed tightening sequence.  Why is the torque regulated? The vibration that comes inside when you drive a car is a small vibration that is damped by many parts. Various parts such as rubbers and springs used in automobiles are absorbing vibration for riding comfort. In fact, more vibrations and shocks stress auto parts.   <div align="center" xss="removed"><img title="0b17346dccfb6d4494bbff48667047bd.jpg" src="http://aftermarket.ctr.co.kr/smartEditor/upload/0b17346dccfb6d4494bbff48667047bd.jpg"></div><div align="left" xss="removed"><continued></continued></div>- Continued driving without one of the two bolts securing the rubber mount bracket. Eventually, the bracket was torn -  If the tightening torque is lower than the specified torque, there is not enough friction between the bolt and the counterpart screw thread. In other words, the bolts do not have sufficient frictional force due to continuous vibration and shock, so they are gradually released. Bolt loosening can lead to bigger accidents.    <div align="center" xss="removed"><img title="dc620106f92f97868455b16f5ccbcc56.jpg" src="http://aftermarket.ctr.co.kr/smartEditor/upload/dc620106f92f97868455b16f5ccbcc56.jpg"></div>  Conversely, what if it is tightened to a higher torque than the specified torque? The bolt is slightly elastic. When tightened to the specified torque, the thread of the bolt is slightly stretched, and this elasticity maintains the fastening of the bolt. The specified torque is probably the best tightening of these bolts. If tightened with a force higher than the specified torque, the bolt will be stretched more severely, and the stretched bolt will be rather dangerous because it will lose the tightening. If the bolt is not damaged, the counterpart may be damaged. Plastics, such as head covers, can break and damage to aluminum threads, such as cylinder heads, can lead to higher repair costs.  Make sure to check the prescribed torque or tightening method in the maintenance manual. Enjoy safer driving!

Many auto parts are fixed by bolting, and there are various sizes and shapes of bolts and nuts used.And most bolting operations have a specified tightening force (=torque). Even parts that require uniform force on the contact surface have a fixed tightening sequence. Why is the torque regulated?The vibration that comes inside when you drive a car is a small vibration that is damped by many parts.Various parts such as rubbers and springs used in automobiles are absorbing vibratio...

Reliable Facility

2020-05-21 02:30:18

The suspension and steering products produced by CTR have a ball joint structure. When a vehicle moves, various ball joints move thousands and tens of thousands of times without your knowledge. CTR is constantly evolving by creating professional research & test facilities to create safe products with high performance and strong durability. <img title="f48647d8f4a60df70ebc4056f42af905.png" src="/smartEditor/upload/f48647d8f4a60df70ebc4056f42af905.png">  CTR Group has established and operated specialized research institutes in each field, led by its R&D headquarters. It has a total of six R&D center and has specialized programs such as CATIA, UG NX, DAFUL, and FORGE NxT. Established a specialized R&D center for aftermarket parts, and is developing new products accurately and efficiently through professional design programs such as CATIA and CADRA and 3D scanners. Through this, about 400 new products are developed annually. <img title="255e0254c5e0fea7893e9550dca4a291.jpg" src="/smartEditor/upload/255e0254c5e0fea7893e9550dca4a291.jpg">  CTR's test facility is an ISO / IEC 17025 certified and an internationally recognized testing organization based on international standards. By applying this know-how to the AM business, we have established a test room for AM only. We operate a reliable verification facility based on testing equipment and processes equivalent to OE. To make the best auto parts, CTR has a test machine that can perform various tests. Increases product reliability through various tests such as clearance, torque, push-in, pull-out and durability tests.  <img title="72a0f7f1b19070d08bc36072a3fd04be.jpg" src="/smartEditor/upload/72a0f7f1b19070d08bc36072a3fd04be.jpg">

The suspension and steering products produced by CTR have a ball joint structure. When a vehicle moves, various ball joints move thousands and tens of thousands of times without your knowledge.CTR is constantly evolving by creating professional research & test facilities to create safe products with high performance and strong durability. CTR Group has established and operated specialized research institutes in each field, led by its R&D headquarters. It has a total of six R&a...

Search

Search more

Location

Year

Make

Model

Year

Vehicle

Product

Categories

Products

CB0548(CB0548)

Parts

Status

Position

Weight(g)

Install Guide

Caution Point

Flange nut with self-locking function

Sealing Strength

Necessity of prescribed torque tightening

Reliable Facility