4 B4 k/ D5 h) ]$ g% VA failed weld on a repaired slewing ring bearing is being blamed as the immediate cause for the deadly collapse of a construction crane in New York City a year ago. 7 M$ U% c9 t, f$ ^7 o# E2 v W' k: i4 Q. ]3 c4 B
Two men, Ramadan Kurtaj and Donald Leo, died in the collapse on May 30, 2008. When the slewing ring bearing apparently failed, the cab and boom separated from the top of the 20-story mast. The assembly fell all 20 stories, raking an adjacent building and down into the street below. & o3 M- s: l: ~& n5 q' T
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link to New York Times: A detailed interactive graphic1 e K' I1 }! G1 ]
vividly illustrates the crane construction and failure ' z" P8 x4 W F' g" w[opens in a new window] 5 l& C& {% Y& U* {3 EFederal investigators have reportedly tied the accident to improperly welded repairs made by RTR Bearing (China; website) a year earlier, in July 2007. / ]) {3 V. c3 p# C% f
+ w2 o/ f6 U% N& w jIn May 2007, the crane, an older model Kodiak, was struck by lightning. Shortly after that, workers reportedly noticed daylight through the cab and boom's supporting turntable. Further inspection revealed a two-foot crack in the slewing ring bearing. At that point, turntable and slewing bearing were removed for repair. Another turntable and bearing were installed temporarily, so the crane could remain in service. # V8 R/ `0 Y z U3 u0 q
* f1 ?8 {4 ~* \6 _; [& u3 T" ~Avon Bearings (USA; now a division of Kaydon Corp., USA) bid on the repair, quoting just over $120,000 and 28 weeks lead time. Avon's bid was rejected. : `+ v" P+ h9 o0 m
' y( o8 M" a5 |" {3 gRTR Bearing Company Ltd., a slewing ring bearing manufacturer based in Luoyang, China, bid $20,000 with a much shorter lead time. 9 j G4 I4 D! K* T* k/ f0 n+ ~* k( I5 @9 `2 S
Several emails have now been made public, indicating even before the contract was awarded, RTR told New York Crane it was uncertain if it could make the repairs properly. An RTR representative emailed New York Crane on June 7, 2007, saying: "And honest speaking we dont have confidence on this welding." & f' u6 `+ ~' F) c& Q
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New York Crane awarded the bearing repair contract to RTR anyway. 9 Z* ]: x+ d7 e. \* F6 k9 Q/ y* w' O7 S$ R" z1 |" q% U) I: k/ U
The bearing was removed from the crane, shipped to China, repaired by RTR, and shipped back to New Jersey. There, it was assembled and additional repairs were made to the turntable assembly. Finally, the crane's temporary bearing and turntable assembly was removed and the repaired assembly put in place. 0 z$ D- n) J+ q% G6 r9 Y9 r
& u1 |8 h) g# A" ^& KThe crane's repairs were approved by Michael Carbone, chief inspector of cranes and derricks for the City of New York. Mr. Carbone was a former employee of New York Crane and Equipment. : j8 i8 H! A% u$ t
3 ~7 v& [8 J" {7 r' n+ o7 z& ^$ XThis was the second deadly collapse in 2-1/2 weeks of cranes owned by New York Crane and Equipment, safety inspections and installations approved by Mr. Carbone. The first crane collapse killed seven people. Mr. Carbone resigned in July 2008, a month after this collapse. 7 J9 A7 x- ^& t$ I- p7 c$ ~+ f# w
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In addition to the failed slewing ring bearing, the possibility the crane was pressed into service beyond its service life has also become a question. u: y. G5 G( S" b" G
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by Bruce A. Carr: ]; y7 t( o4 G/ e: \8 T4 r
from individual research,- g" ?, ?# |5 g1 r
tips and commercial sources. 7 r, v7 v6 h) qUnauthorized reproduction is prohibited. ' X0 F" @) g3 K2 r7 X
$ P5 v/ V/ Y* e" v- n" z1 [0 yhttp://www.rtr-bearing.com/ 9 _; `8 p3 d. ?& R; N2 w9 `# [) D" s / D1 t% x# Y; W5 t: d( n; i Y潤寧軸承有限公司 （RTR Bearing Company Limited）成立于1998年6月26日。公司下設(shè)兩個(gè)生產(chǎn)分廠和一個(gè)進(jìn)出口部，現(xiàn)有員工99人。工廠位于洛陽市老城區(qū)大路口，占地面積6000平方米，擁有資產(chǎn)3000萬，能夠按照國際標(biāo)準(zhǔn)和國家最新技術(shù)標(biāo)準(zhǔn)，生產(chǎn)外徑100MM至5000MM的回轉(zhuǎn)支撐軸承，還能根據(jù)用戶需求設(shè)計(jì)、研制開發(fā)各種非標(biāo)準(zhǔn)和特殊結(jié)構(gòu)回轉(zhuǎn)支撐軸承。進(jìn)出口部位于中國東北重要港口城市——大連。公司始終遵循管理求嚴(yán)、技術(shù)求新、質(zhì)量求精、工作求實(shí)、服務(wù)求誠、經(jīng)營求真的經(jīng)營理念，多年來得到了國內(nèi)外客戶的大力支持。公司主要業(yè)務(wù)是出口各類機(jī)械類產(chǎn)品，目前主要產(chǎn)品是軸承。主要出口國家為歐美國家，產(chǎn)品已遍布世界各地，并受到國外客戶的廣泛贊譽(yù)。目前公司銷售部設(shè)在大連，生產(chǎn)及產(chǎn)品質(zhì)量檢測中心設(shè)在洛陽(國內(nèi)軸承生產(chǎn)基地)。產(chǎn)品廣泛應(yīng)用于各類工程機(jī)械，起重運(yùn)輸機(jī)械，采掘機(jī)械，建筑工程機(jī)械，港口機(jī)械和導(dǎo)彈發(fā)射架等大型設(shè)備上，遍布于工程，礦山，化工，石油，冶金，煤炭，港口，船舶及儀器儀表等行業(yè)。 / Q6 k$ N$ R/ V, j; P) `( D' u 1 |6 q8 _6 C! s% _+ V 公司雖成立時(shí)間不長，卻有旺盛的生命力，借助國際買家在國內(nèi)采購量逐漸增大的大好環(huán)境下，我們以創(chuàng)新的眼光，優(yōu)質(zhì)的服務(wù)贏得了眾多客戶。 0 S# j2 v: `$ d- Z5 X% d& k; U# [/ v3 [
公司未來的發(fā)展目標(biāo)要依靠良好的國際環(huán)境，充分利用國內(nèi)優(yōu)質(zhì)資源，向國際標(biāo)準(zhǔn)靠攏，使RTR這個(gè)品牌成為中國優(yōu)質(zhì)回轉(zhuǎn)支撐的象征。作者: 伊凡 時(shí)間: 2009-5-27 13:12
樓上翻譯的非常好,代大家感謝您啦!作者: 伊凡 時(shí)間: 2009-5-27 13:27
Hello Mr. Ibrahim, % i+ j; J( S! z1 c $ u. o, }/ S7 P8 H+ XYes, RTR has several locations. We just listed. I# ]2 v! W8 [9 O" P
their primary manufacturing location.# S2 ]4 O$ a+ t7 t
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It is unfortunate that many people outside of* e4 ~% k- C/ v# M$ L2 Y- A* f
manufacturing do not fully appreciate how difficult 4 k. w! x, H+ d" swelding on specialty metals can be.. x7 _2 w' @! g& g4 {
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Replacing the bearing would have been a better , R1 E0 a, p B; `idea, but since it was damaged by lightning, no9 o5 S( S/ O% F' q5 N/ K
insurance would be willing to pay for it, I'm sure.$ j( k& I: I* F- Q0 B' z
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Thanks for your note.) N o6 O O2 C2 h9 }# h0 A
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eBearing Inc.1 O4 i# o% a `/ A
; W9 X A; V) x* _這是該消息來源一小時(shí)前給我的回信!作者: 天氣 時(shí)間: 2009-5-27 14:01
伊凡版主，首先我質(zhì)疑這則新聞的可靠性，其次我覺得標(biāo)題“中國維修產(chǎn)品在美制造慘劇-2008.5.30”有些危言聳聽。0 {) a7 N1 J. O) O' A
原標(biāo)題可以理解為“軸承故障卷入了紐約起重機(jī)倒塌事故中”。/ L3 p6 i" `" G- ]! j6 F
整片文章并沒有刻意強(qiáng)調(diào)“中國維修”的字樣，只是介紹了承攬維修業(yè)務(wù)的是中國RTR軸承公司而已。 " z6 _4 O8 t0 F% A9 l k% c0 u$ u廠家忽略了RTR公司對焊接的不自信，只為了圖便宜看中了RTR公司近1/6的低報(bào)價(jià)。 ) |! g* a+ w5 ?& TRTR公司維修后的軸承也是美國人自己驗(yàn)收的，出現(xiàn)事故責(zé)任不在一方。作者: 伊凡 時(shí)間: 2009-5-27 14:13
天氣斑竹的話,說的不完全對,無論是誰但凡報(bào)價(jià)就要承擔(dān)后果,既然已經(jīng)接單維修,說責(zé)任不在中國人一方,自然是說不通的,任何有責(zé)任心的行業(yè)人不能拿美國人民的生命不當(dāng)生命,拿報(bào)價(jià)和商業(yè)信用當(dāng)兒戲,這是責(zé)任意識的問題& r7 T% x, E) }$ r
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對于雙方--不論是美國人還是中國人都是一場災(zāi)難,再說商業(yè)追求利潤最大化和成本費(fèi)用最小化是很正常的,但這就是商業(yè)社會(huì)的悲哀 % V8 q+ u. b& ~% W / `% |- e* B# I6 |- p3 M; t8 t4 V! ]( d我個(gè)人覺得題目并不明顯帶有"危言聳聽"的隱義,只是有點(diǎn)太大了,我聽從前輩的建議,改為"中國廠家維修后的軸承產(chǎn)品在美制造慘劇"?作者: 伊凡 時(shí)間: 2009-5-27 14:24
值得大家注意的是,這家國外媒體并沒有特別說明是中國人的問題,媒體給我的郵件也很是中肯,專業(yè)精神值得學(xué)習(xí)和借鑒.# O& ^1 J+ q1 Q3 v
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Bearing Failure Implicated in Deadly NYC Crane Collapse . F! c$ E" D* _' }* x$ \! }; W) ~3 v1 G
美國方面的題目是: 紐約起重機(jī)吊車事故中涉及軸承損壞 ( Y! F. u$ \4 u) {; @# d, x X& `8 i( v, y
這個(gè)題目更加中性,沒有任何偏袒,只是我注意到國內(nèi)廠家報(bào)價(jià)并維修,中間的郵件中透露的不自信態(tài)度讓人汗顏. 我也質(zhì)疑過該家美國媒體,所以我寫了郵件,說廠家中英文的地址不一致,沒想人家美國大晚上的就回郵件給我了.作者: 伊凡 時(shí)間: 2009-5-27 14:41
呵呵,不過,我漏看了美國人寫的一個(gè)副標(biāo)題:9 y+ t- C6 y3 \1 O/ y
- O+ a, p F4 L5 a3 N2 {Slewing ring bearing repaired in China for $100k savings.作者: 伊凡 時(shí)間: 2009-5-27 14:44
可以明確的是:; l% i9 V3 l9 e3 `% I5 p# `, c. x
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潤寧軸承有限公司（RTR BEARING COMPANY）是一家新成立的外貿(mào)出口公司，主要產(chǎn)品為軸承和其他機(jī)械配件類產(chǎn)品，公司的供應(yīng)商主要分布在瓦房店，洛陽，江浙地區(qū)。作者: 天氣 時(shí)間: 2009-5-27 14:44
伊凡版主，沒想到你這么快就有了回復(fù)。。。 3 V/ y& q* M n' D首先澄清，我可不是前輩，是在社區(qū)汲取營養(yǎng)正在學(xué)習(xí)中的晚輩。4 A: X3 d" B* q p# G0 x
其次“危言聳聽”這四個(gè)字我說的也有些過了。( ^1 v; m) q1 e$ ^& n
我同意你的觀點(diǎn)所有有責(zé)任心的行業(yè)人都不能拿報(bào)價(jià)和商業(yè)信用當(dāng)做兒戲！