Carbon Steel Bearing
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Nice Thrust Bearing 6031/4V Full Complement Of Balls, Case Hardened Carbon Steel, 0.5000" Bore x 1.0000" OD x 0.3440" Width List Price: $3.91 Sale Price: $3.52  |
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The 600 Series is designed for moderate speeds and medium thrust loads. These bearings utilize a full ball complement. Rings are cold forged from strip steel and are carefully heat treated. The entire assembly is housed in a soft steel band which lends itself to an easy press fit into a housing. The band also serves as a dust shield and helps retain the bearing lubricant. The upper ring is free to rotate in the band and has a close fit in the bore for the shaft. The lower ring is fixed in the band and has a shaft clearance in the bore. RBC Nice Bearings is a subsidiary of RBC Bearings. RBC Bearings has been providing bearing solutions to our customers since 1919. A publicly-traded company (NASDAQ: ROLL), RBC currently has 23 manufacturing facilities worldwide, with 18 located in the USA. |
Carbon Steel Bearing
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 200 1 2 inch Carbon Steel Ball Bearing Nickel Plated  US $24.99
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 200 1 2 inch Carbon Steel Ball Bearing Chrome Plated US $24.99
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 200 3 8 inch Carbon Steel Ball Bearing Chrome Plated US $21.99
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 Two 1 1 2 Carbon steel bearing balls US $20.00
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 12 3 4 Carbon steel bearing balls 12 oz US $19.00
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 Five 1 Carbon steel bearing balls 12 oz US $19.00
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 383 6mm Carbon steel bearing balls 12 oz US $19.00
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 Three 1 1 8 Carbon steel bearing balls 12 oz US $19.00
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 Two 1 1 4 Carbon steel bearing balls US $18.50
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 Two 1 1 4 Carbon steel bearing balls US $18.50
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 40 1 2 Carbon steel bearing balls 12 oz US $18.00
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 96 3 8 Carbon steel bearing balls 12 oz US $18.00
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 Four 1 1 16 Carbon steel bearing balls 12 oz US $18.00
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 325 1 4 Carbon steel bearing balls 12 oz US $16.00
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 60 7 16 Carbon steel bearing balls US $16.00
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 100 5 16 Carbon steel bearing balls US $16.00
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 500 1 16 Carbon steel bearing balls US $14.00
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 25 1 2 Carbon steel bearing balls US $13.00
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 Ten 5 8 Carbon steel bearing balls US $12.00
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 300 7 32 Carbon steel bearing balls US $12.00
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 Five 3 4 Carbon steel bearing balls US $11.50
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 500 5 32 Carbon steel bearing balls US $11.50
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 300 3 16 Carbon steel bearing balls US $11.50
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 500 1 8 Carbon steel bearing balls US $11.00
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 One 1 1 4 Carbon steel bearing ball US $8.00
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 Three 1 Carbon steel bearing balls US $7.00
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 Two 1 1 16 Carbon steel bearing balls US $7.00
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 25 3 8 Carbon steel bearing balls US $7.00
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 25 7 16 Carbon steel bearing balls US $7.00
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 One 1 1 8 Carbon steel bearing ball US $7.00
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 One 1 1 2 Carbon steel bearing ball US $7.00
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 100 6mm Carbon steel bearing balls US $6.00
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 100 6mm Carbon steel bearing balls US $6.00
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 Three 3 4 Carbon steel bearing balls US $5.00
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 100 1 4 Carbon steel bearing balls US $5.00
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 25 5 16 Carbon steel bearing balls US $5.00
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 Ten 1 2 Carbon steel bearing balls US $5.00
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 Five 5 8 Carbon steel bearing balls US $5.00
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 100 1 16 Carbon steel bearing balls US $5.00
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 100 5 32 Carbon steel bearing balls US $4.00
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 100 5 32 Carbon steel bearing balls US $4.00
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 100 7 32 Carbon steel bearing balls US $4.00
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 100 3 16 Carbon steel bearing balls US $4.00
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 100 1 8 Carbon steel bearing balls US $4.00
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Why would you use stainless steel lifting sockets in precast concrete elements?
We are erecting 128 buildings out of precast elements consisting mainly of load-bearing walls (no columns) and hollow-core slabs. Specifications say all embedded items in precast elements should be stainless steel. The precast manufacturer says that SS for lifting sockets is not required since the sockets will be used for lifting only and therefore need not be stainless steel as carbon steel sockets will serve the same purpose.
Having been through this type of question many times in my career, I suspect this is a case where the person writing the specification did not think about the lifting sockets when specifying stainless steel embedments.
Now the vendor asks for relief on this one item and those who can make the decision don't know the intent of the original spec with regards to lifting sockets. Since it is in the spec and the vendor probably didn't take exception when bidding he is now stuck with cost he didn't include in his bid and the buyer doesn't want to give him relief.
If this were my project I would ask the spec writer for an explanation of the need for the stainless lifting sockets and if they can't come up with a good explanation, I would let the vendor off the hook.