Kaydon Reali-Slim® A 型角接觸球軸承具有足夠的徑向間隙，可產(chǎn)生較大的接觸角以抵抗軸向載荷。該接觸角在標(biāo)準(zhǔn)軸承中為 30°。使用超深球槽（球直徑的 25%）。

Kaydon A型薄截面軸承的顯著特點(diǎn)在于裝配方法。一個(gè)環(huán)，通常是外環(huán)，被埋頭孔以減少滾道的一個(gè)臺(tái)肩，使得在兩個(gè)環(huán)之間的溫差的幫助下，外環(huán)可以安裝在內(nèi)環(huán)、球和分離器上集會(huì)。這提供了一種不可分離的軸承，能夠承載更大的徑向載荷，同時(shí)抵抗一個(gè)方向上的相當(dāng)大的軸向力。在施加軸向力的情況下，內(nèi)圈和外圈的面大致齊平，以盡量減少預(yù)載調(diào)整。

這種裝配方法允許使用比Kaydon C 型 Conrad 裝配軸承更多的滾珠，加上相當(dāng)大的接觸角，使 A 型軸承具有更大的推力能力。

由于其單向推力能力，該Kaydon 軸承應(yīng)與另一個(gè)軸承相對(duì)安裝，以便存在軸向力以建立和保持接觸角，并**限度地減少反向推力載荷下的軸向移動(dòng)。

在背對(duì)背安裝中，軸承可通過(guò)內(nèi)圈夾緊環(huán)下方的墊片通過(guò)內(nèi)圈進(jìn)行調(diào)節(jié)，并且接觸線會(huì)聚在軸承外部。**初提供足夠厚度的墊片以允許軸相對(duì)于外殼軸向移動(dòng)。然后可以測(cè)量總的軸向運(yùn)動(dòng)，并且墊片厚度減少運(yùn)動(dòng)量加上預(yù)加載所需的任何額外量。當(dāng)兩個(gè)軸承彼此相對(duì)以消除所有內(nèi)部間隙并且在滾珠和滾道之間發(fā)生彈性變形時(shí)，軸承被稱為“預(yù)加載”。

When bearings are mounted face-to-face, the contact lines converge inward. Spacers are used between both the inner and outer races and adjustment is possible by varying the length of one spacer relative to the other. Normally, however, the spacers are equal in length and the bearings are furnished as a matched pair with a predetermined internal fit. If the outer race spacer were removed from this assembly, the bearings could be adjusted by use of shims under the outer race clamping ring.

Duplexed bearings
Kaydon type A thin section bearings are furnished as matched sets—available direct from the factory—when they are to be mounted adjacently or with equal length inner and outer race spacers. When required, Kaydon can supply assemblies with matched ground spacers. Duplexed bearings are supplied in back-to-back, face-to-face, or tandem arrangements. Sets of three, four or more bearings can also be matched where conditions require additional capacity and there is insufficient space radially for larger bearings.

Back to back (left)
Face to face (center)
Tandem (right)

Kaydon bearings in these sets are matched within close limits for size of bore and outside diameter. Each set is marked with a 'V' across the bores and outside diameters at the high point of radial runout to indicate the proper orientation of the races at installation.

Bearings provided in back-to-back and face-to-face arrangements are normally furnished with the race faces ground, to provide preload when installed. To accomplish this, a gap is provided between the inner races of the back-to-back pair and between the outer races of the face-to-face pair. When the bearings are installed and clamped axially, the gap is closed, producing a preload on the bearings.

A back-to-back arrangement在力矩載荷下提供更大的剛度，應(yīng)該在單個(gè)軸承之間的空間很小或使用一對(duì)相鄰軸承時(shí)使用。

A面對(duì)面安排對(duì)軸和外殼之間的不對(duì)中容忍度更高，當(dāng)沿一個(gè)軸有多對(duì)軸承時(shí)應(yīng)予以考慮。當(dāng)單個(gè)軸承面對(duì)面安裝時(shí)，它們必須有足夠的間距以提供對(duì)力矩載荷的抵抗力。如果需要，一對(duì)面對(duì)面的軸承可以與另一個(gè)軸承一起安裝在“固定-浮動(dòng)”布置中，并且一對(duì)處于固定位置。

串聯(lián)軸承組具有單向推力能力，必須與另一個(gè)軸承或軸承組相對(duì)安裝。

將目錄額定載荷應(yīng)用于配對(duì)組時(shí)，總徑向承載力被認(rèn)為等于單個(gè)軸承徑向額定值乘以 N0.7，其中 N 是組中軸承的數(shù)量。每個(gè)方向的推力容量被認(rèn)為等于單個(gè)軸承額定推力乘以 N0.7，其中 N 是在該方向上抵抗推力的軸承數(shù)量。

除非特別要求，否則軸承組的外側(cè)面不受控制。如果出于預(yù)加載目的需要外側(cè)面齊平，則應(yīng)考慮通用研磨軸承。在通用磨削軸承上，內(nèi)側(cè)和外側(cè)面在指定的計(jì)量載荷下匹配，以控制預(yù)載荷并允許安裝方向的靈活性。