Think Seriously About The Components You Use Like Brakes And Wheel Bearings

[Grumpy]

I spent much of yesterday helping a friend replace the brake calipers on a 1969 BBC corvette he recently purchased,
when your dealing with older cars like a 1969 BBC corvette,
you frequently have a wide selection of parts,
(if your dealing with rebuilt parts its a crapshoot on quality, with the dice loaded against you, you might make out ok but the odds are against it.)
but theres almost always a core charge on calipers and both quality availability,
and price can and does vary wildly.
keep in mind the quality tends to be reflected in the prices and the better name-brand aftermarket calipers and rotors and brake pads are not the same lower quality that most off the shelf no-name brand auto parts might be.
yes you can find decent brakes and name brand wheel bearings and brake parts at discounted prices if you shop carefully.
We had to replace both front wheel bearings hubs rotors brake calipers etc.
the time required was about 7 hours due to having to make several trips to several local auto parts stores to acquire small missing component parts , not included in the brake replacement kits, and needing to upgrade from the crappy quality bearings and hubs he had ordered on line based completely on low listed prices
I've said this before, but with brakes bearings and suspension parts..
STICK TO WELL KNOWN BRAND NAMES AND YES THEY COST MORE....
but they tend to fit and function.... something the lower cost import parts made who knows where seldom do!
total cost with all the required parts was close to $900, which was far lower than we might easily have spent but he was working on a very limited budget (like most of us)
the parts he originally ordered at discount prices ,
did not fit, so a mixture of NAPA and advance auto and pep boys parts were required
even rock auto generally has a wide selection of name brand parts listed , I don,t know where he ordered the original parts but they were obviously low quality chinese import clones.
if your unsure of the quality do some research and ask detailed questions and ask to get answers from at least three sources, names like TIMKEN and AC-DELCO and MOOG should be used for many bearings

http://www.corvettemagazine.com/tech-articles/1965-1982-corvette-disc-brake-installation/

https://www.ecklerscorvette.com/corvette-front-wheel-bearing-and-seal-kit-1969-1982.html

https://www.summitracing.com/search/part-type/brake-calipers/year/1969/make/chevrolet/model/corvette

https://www.jegs.com/i/Aerospace-Components/026/AC-275/10002/-1


https://www.retailmenot.com/landing2/rockauto.com?keyword=rockauto.com coupon codes&matchtype=e&mtype=rockauto.com coupon codes&queryStr=rockauto&utm_medium=cpc&utm_source=bing&utm_campaign=_[AUTOMOTIVE]_rockauto.com__[EXM]&utm_content=&utm_term=rockauto.com coupon codes&SID=f08a707f-9e42-4ec4-8dcf-eefa2a59e494&ch=cpc_e&attributedOutclicks=62170651_6280555623_kwd-21491280406:loc-190_15906277914_c

https://shop.advanceautoparts.com/c3/brake-calipers/15684?term=brake calipers[/URL]
https://www.napaonline.com/en/search/brakes/caliper-caliper-hardware/auto-parts/chevrolet/corvette/1969?q=N=2500003+2600313+5001200+5001400+200120300+10196900+2802217&Ns=P_CatScatSequence3_13&referer=PLP&leftNav=leftNav
https://www.rockauto.com/en/catalog...cid+v8,1040904,brake+&+wheel+hub,caliper,1704

 

[Night_Stalker]

Brings back memories of my old 4 C 3's.All of em eventually needed calipers etc.Rebuilts are a hit & miss,I got a 1 with a bad bleeder seat from the Zone.

 

[Grumpy]

HOW TO UNDERSTAND BEARING NUMBERS

https://www.hkdivedi.com/2016/02/how-to-understand-bearing-numbers.html
by Harikesh Divedi - A Mechanical Engineer on February 13, 2016 in Aircraft And Automobile Engineering, Engineering Maintenance
We were discussing in our previous post about the various articles in relation with bearings as mentioned below, and now we have complete understanding with basics of bearings and other terminologies.
Now we will try to explain here the bearing number. First let us see list of topics that we have discussed earlier.
Basic concept of bearings
Main functions of bearings
Bearing operating condition and various terminologies
Roller bearing basics and types
Ball bearing basics and types
Ball bearing seals, shields and snap rings
Bearing removal and cleaning procedure
Induction heater for bearing installation
Bearing installation procedure
Importance of bearing lubrication
Now we will try to explain the bearing number here. First let us see quite important points, when we try to understand a bearing.
Let we have a bearing, first number will indicate the type of bearing.
Bearing number starts with 1
Bearing number starts with 1, indicates self aligning ball bearings. Bearing number 1201 is an example of self aligning ball bearing.

Bearing number starts with 2
Bearing number starts with 2, indicates barrel and spherical roller bearings. Such Bearings will have roller of barrel shaped. Barrel and spherical roller bearings are also self aligning bearings suitable for heavy radial loading.

Bearing number 22326 CC3 is an example of barrel and spherical roller bearing.
Bearing number starts with 3
Bearing number starts with 3, indicates tapered roller bearings. Such Bearings are usually used for bearing high axial load and radial load also. 31308 bearing number is an example of tapered roller bearing.

Bearing number starts with 4
Bearing number starts with 4, indicates deep grove double row ball bearings. Bearing number 4203 ATN9 is an example of deep grove double row ball bearing.


Bearing number starts with 5
Bearing number starts with 5, indicates axial deep grove ball bearings or thrust bearings. Such bearings are basically designed for heavy axial load or thrust load. Bearing number 51200 is an example of axial deep grove ball bearings or thrust bearings.


Bearing number starts with 6
Bearing number starts with 6, indicates deep grove ball bearings. Bearing number 6207 is an example of deep grove ball bearings.

Bearing number starts with 7
Bearing number starts with 7, indicates single row angular contact ball bearings. Bearing number 7312 is an example of single row angular contact ball bearings.

Bearing number starts with 8
Bearing number starts with 8, indicates axial cylindrical roller bearings. Bearing number 81212-TV is an example of axial cylindrical roller bearings.

Bearing number starts with NA
Bearing number starts with NA, indicates needle roller bearings. Bearing number NA4906-2RS is an example of needle roller bearings.

Suffix of a bearing number
Bearing number will be associated usually with suffix and their importance could be seen below.
RS term
RS term is normally used to indicate ball bearings with seals. RS stands here for rubber seal and this seal will be usually made by rubber, non-synthetic or synthetic materials.
Let us see one bearing who’s bearing number is 6206 RS, this bearing will have seal on one side only. RS indicates that bearing will have seal on one side only.
If we have another bearing which number is 6206 2RS, in this case bearing will have seal on both sides. 2RS indicates that bearing will have seal on both side i.e. on left hand and right hand.
Z term
Z term is normally used to indicate ball bearings with shield. Z stands here for metal shield.
Let us see one bearing who’s bearing number is 6206 Z, this bearing will have shield on one side only. Z indicates that bearing will have shield on one side only.
If we have another bearing whose bearing number is 6206 ZZ, in this case bearing will have shield on both sides. ZZ indicates that bearing will have shields on both sides i.e. on left hand side and right hand side also.
K term
K term indicates bearing with taper bore
E term
E term indicates bearing with reinforced design
P2 term
P2 term indicates bearing with highest precision
There are few more letters as mentioned here with their importance
NR: Snap ring and groove
V: Single non contact seal
VV: Double non contact seal
DDU: Double contact seal
Prefix of a bearing number
Bearing number will be associated usually with Prefix and their importance could be seen below.
X: Corrosion resisting steel, such as X623
K: Cage with roller elements
R: Ring with roller set
L: Removable bearing ring
E2: Energy efficient bearing (SKF)
T: Case hardened steel, such as T32248
Bearing manufacturers also use their own prefix and that could be seen in bearing maintenance manuals of respective manufacturers.
Bearing bore diameter
Bearing bore diameter could be calculated by considering the last two digits of bearing number.
If bearing last two digits are 00, it indicates bearing bore diameter d = 10 mm. For example bearing 1200, will have bore diameter 10 mm.
If bearing last two digits are 01, it indicates bearing bore diameter d = 12 mm. For example bearing 51101A, will have bore diameter 12 mm.
If bearing last two digits are 02, it indicates bearing bore diameter d = 15 mm. For example bearing 3202, will have bore diameter 15 mm.
If bearing last two digits are 03, it indicates bearing bore diameter d = 17 mm. For example bearing 6303, will have bore diameter 17 mm.
If bearing will have a bearing number with last two digits 04 or more than 04, in this case bearing bore diameter could be easily calculated by multiplying the last two digits with 5 and result will be considered in mm. For example if we have a bearing 6205, it bore diameter will be 25 mm.
Internal Clearances
A bearing number will have one clearance series. Bearing number usually comes with C1, C2, C3, C4 or C5. If bearing number is not mentioned with clearance series that means bearing will have normal clearance. For example bearing 6226 indicates that bearing has normal clearance.
C2: Clearance less than normal clearance
C1: Clearance less than C2 clearance
C3: Clearance more than normal clearance
C4: Clearance more than C3 clearance
C5: Clearance more than C4 clearance
Let us consider one example of a bearing number and discuss its importance
Let we have one bearing with number 23215 C3
2: barrel and spherical roller bearings
3 and 2: Bearing construction details (size of the bearing)
15: Bearing bore diameter will be 75 mm
C3: Bearing internal clearance more than normal clearance
Similarly, we can understand the importance of a bearing number.