最详尽的轴承术语(中英文互译)先翻译下面两个词:1、slewing ring bearing 2、slewving bearing.再请说明其他所有轴承术语,偶要全球最详尽的.说明轴承级别!

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最详尽的轴承术语(中英文互译)先翻译下面两个词:1、slewing ring bearing 2、slewving bearing.再请说明其他所有轴承术语,偶要全球最详尽的.说明轴承级别!

最详尽的轴承术语(中英文互译)先翻译下面两个词:1、slewing ring bearing 2、slewving bearing.再请说明其他所有轴承术语,偶要全球最详尽的.说明轴承级别!
最详尽的轴承术语(中英文互译)
先翻译下面两个词:1、slewing ring bearing 2、slewving bearing.
再请说明其他所有轴承术语,偶要全球最详尽的.
说明轴承级别!

最详尽的轴承术语(中英文互译)先翻译下面两个词:1、slewing ring bearing 2、slewving bearing.再请说明其他所有轴承术语,偶要全球最详尽的.说明轴承级别!
slewing ring bearing (slewving bearing)回转支承轴承即转盘轴承
1. adapter bearing带固接套的轴承
2. adjustable bearing可调轴承
3. adjustable cone colter bearing圆犁刀的可调式锥形轴承
4. aerostatic bearing空气静力轴承
5. agate bearing玛瑙轴承
6. air journal bearing气体轴承
7. air lubricated thrust bearing空气润滑止推轴承
8. aligning bearing(直线)对位轴承
9. alkaline-friction bearing抗磨轴承
10. allowable bearing容许支承力
11. all-rubber type bearing全胶式轴承.全橡胶轴承
12. aluminum base bearing铝基合金轴承
13. aluminum-tin bearing铝锡合金轴承
14. angular ball bearing径向止推滚珠轴承
15. angular contact ball bearing角面接触滚珠轴承,向心止推滚珠轴承
16. angular contact journal bearing角面接触轴颈轴承
17. annular ball bearing向心球轴承,径向滚珠轴承
18. annular contact thrust ball bearing推力向心球轴承
19. antenna bearing(电磁)天线方位
20. antifriction thrust bearing减磨推力轴承,减磨止推轴承
21. antithrust bearing止推轴承
22. asymmetrical roller bearing非对称滚子轴承
23. axial bearing支撑轴承,止推轴承
24. axial thrust bearing轴向推力轴承
25. axle box bearing轴箱轴承
26. azimuth bearing方位
27. babbit metal (cast) bearing(铸造)巴氏合金轴承
28. babbit-lined bearing巴氏合金衬套轴承,衬巴氏合金的轴承
29. back bearing反象限角,后轴承,反方位(炮)
30. back-to-back duplex bearing成对双联轴承(外圈宽端面相对)
31. ball bearing滚珠轴承
32. ball collar thrust bearing滚珠环止推轴承,滚珠环推力轴承
33. ball journal bearing球颈轴承
34. ball thrust bearing止推滚珠轴承
35. barrel bearing圆筒轴承
36. base bearing主轴承,底轴承,基轴承
37. bellbearing钟杆推力轴承,小钟杆平球架,炉钟杠杆
38. bevel pinion front bearing小锥齿轮前[后]轴承
39. big-end bearing大端轴承
40. blade bearing刃型支承
41. block bearing支承轴承,止推轴承
42. boring bar bearing镗杆轴承
43. box bearing空转轴承
44. bracket bearing托架轴承
45. bushing bearing衬套轴承
46. cageless rolling bearing无保持架轴承
47. camshaft bearing凸轮轴轴承
48. center bearing下心盘,下心盘支承面;中心支承
49. centring spring rod bearing调准簧杆轴承
50. ceramic bearing陶瓷轴承
51. check bearing检验方位,检验轴承
52. circular unidirectional thrust bearing环状单向推力轴承
53. closed-type bearing密闭形轴承
54. clutch release bearing离合器分离轴承
55. collar (thrust) bearing环形止推轴承
56. combination bearing组合轴承
57. commutator side bearing整流子侧支座
58. composite bearing多层轴瓦,复合轴承
59. compressed air bearing压缩空气轴承,压气轴承
60. concentric adjustable bearing同心调整轴承
61. conical bearing圆锥轴承
62. corrugated bearing梳状轴承,槽形轴承
63. countershaft gear bearing副轴齿轮轴承
64. crank(ed) bearing曲轴轴承,曲柄轴承,连杆轴承
65. cross head holt bearing十字头销轴承
66. cross head pin bearing十字头销轴承
67. cryogenic bearing低温轴承
68. cup-and-cone bearing对开径向上止推轴承
69. cutter bearing滚刀轴承
70. declutch shaft bearing离合器操纵轴承,分离轴轴承
71. diamond bearing金刚石轴承
72. die cast bearing模铸轴承
73. differential drive pinion cage bearing差速器主小齿轮轴承罩
74. differential side bearing差速器壳轴承
75. disk bearing圆盘轴承
76. disk harrow bearing圆盘耙轴承
77. distributor upper bearing配电器上轴承
78. double bearing双列轴承
79. double shield bearing双(护)罩轴承
80. double thrust bearing双止推轴承
81. double-row angular contact ball bearing双列向心推力球轴承
82. double-row ball journal bearing双列径向滚珠轴承
83. double-row radial ball bearing双列向心球轴承
84. double-row radial spherical roller bearing双列向心鼓面滚子轴承
85. double-row self-aligning spherical roller
86. bearing双列向心球面滚子轴承(自动调心型)
87. drag link bearing拉杆支座
88. drive end bearing主动端轴承,驱动端轴承
89. drive pinion cone bearing主动小齿轮锥形轴承
90. drive shaft bearing主动轴轴承
91. drop-hanger bearing悬挂轴承
92. drum roller bearing鼓形滚柱轴承
93. dry bearing干轴承
94. duplex bearing双轴承
95. duplex ball bearing成对双联向心推力球轴承
96. dynamo bearing发电机轴承
97. elastically yielding bearing弹性退让轴承
98. elliptical bearing椭圆形轴承
99. enclosed tubular bearing密封套管轴承(属于油浴润滑式轴承)
100. end journal bearing端枢轴承
101. end shield bearing机油滤清器内盖头轴承
102. end thrust bearing止推轴承
103. end-mounted bearing(耙组)两端安装的轴承
104. engine thrust ball bearing止推滚珠轴承
105. established line bearing非标准轴承
106. expansion bearing活动支承,温度)伸胀支承
107. expansive end bearing of bridge活动桥支座
108. fabric bearing夹布胶木轴承
109. fan end thrust ball bearing风扇端止推滚球轴承
110. fan shaft bearing风扇轴轴承
111. Ferro porit bearing渗硫铁系含油轴承
112. filling slot type bearing填槽式轴承
113. film bearing油膜轴承
114. film lubrication bearing油膜轴承,液体摩擦轴承
115. fixed-type bearing固定轴承
116. flange bearing带法兰盘轴承
117. flanged cup bearing外环凸缘轴承
118. flexible bearing挠性轴承
119. floating bush bearing浮动衬套轴承
120. flood-lubricated bearing液体摩擦轴承,油膜轴承
121. fluid bearing液压轴承
122. fluid-film bearing流体膜轴承
123. footstep bearing立轴承
124. fore bearing前轴承
125. fork bearing叉轴承
126. forward bearing前象限角
127. four-row tapered roller bearing四列圆锥滚柱轴承
128. free end bearing活动支承,自由支承
129. friction bearing滑动轴承
130. friction thrust bearing摩擦止推轴承
131. front main bearing前主轴承
132. fulcrum bearing支承
133. full-journal bearing全围式滑动轴承full-molded type rubber bearing整体模制式橡胶轴承
134. gas-lubricated bearing气体润滑轴承
135. gear shaft roller bearing齿轮轴滚柱轴承
136. globe bearing球面轴承
137. graphite bearing石墨板(离合器分离的),石墨轴承
138. graphite-containing bearing含石墨的轴承
139. graphited oilless bearing石墨润滑的无油轴承
140. gravity side bearing重力复原旁承
141. grid bearing坐标(网)方位
142. grinding wheel bearing砂轮轴承
143. groove ball bearing带沟球轴承
144. guardbearing动力输出轴的)护罩轴承
145. gudgeon pin bearing活塞销轴承,耳轴销轴承
146. guide bearing导向轴承,导引轴承,定向轴承,导引方位角
147. guide spindle bearing导轴轴承
148. gunmetal bearing炮铜轴承
149. half-and-haif bearing半轴承无盖轴承
150. hanging bearing吊挂轴承
151. hardwood bearing硬木轴承
152. head bearing止端轴承
153. heavy-duty bearing重载轴承
154. hydrodynamic journal bearing液体动压轴承,油膜轴承
155. hydrostatic bearing静压轴承
156. idler shaft bearing空转轴轴承
157. inclined bearing(倾)斜轴承,斜支承
158. inner bearing内轴承
159. intermediate bearing中间轴承
160. jack shaft bearing曲柄轴轴承
161. jewelled bearing宝石轴承
162. Jordan bearing推力套筒轴承
163. journal bearing经向轴承
164. kick-starter bearing冲式起动器的曲柄轴承
165. kingpin bearing凸轮止推回转轴承,止推销轴承,止推枢轴承,中心(转向节)轴承
166. knife-edge bearing刃形支承,刃支承,刀口承
167. knuckle bearing铰式支座,球形支座,关节轴承
168. labyrinth bearing迷宫轴承,曲径式密封轴承
169. laminated bearing夹布胶木轴承,层压轴承
170. leading -screw bearing传动螺杆轴承
171. lignumvitae bearing层压胶木轴承
172. locating bearing止推轴承,定位轴承
173. lock nut bearing锁紧螺帽座
174. longitudinal wall hanger bearing墙托架轴承
175. long-path bearing远距离方位
176. lower bearing下轴承
177. lower half bearing轴承下瓦
178. lubed-for-life bearing永久润滑轴承(即橡胶轴承)
179. lubri-seal bearing阻油环轴承
180. magnetic bearing磁向位,磁方位
181. magnetic thrust bearing磁性推力轴承
182. main bearing主轴承
183. main rod bearing主杆轴承
184. mainshaft bearing主轴轴承
185. maintenance-free bearing自润滑轴承
186. mechanical bearing轴承(总称)
187. midship shaft bearing中间轴轴承
188. miniature bearing微型轴承,超小型轴承
189. molded-fabric bearing(设计)模制纤维轴承
190. motor support bearing电动机支承轴承
191. movable bearing活动支承
192. multi-roll bearing滚针轴承
193. multirow bearing多列轴承
194. multipart bearing弓形轴承,扇形轴承
195. multiple-groove bearing多油槽轴承
196. neck bearing中间轴承
197. needle bearing滚针轴承
198. needle(type) roller bearing滚针轴承
199. noise-free bearing低噪声轴承
200. nonfilling slot type bearing无滚珠槽的滚动轴承
201. non-locating bearing浮动轴承,不定位轴承
202. non-porous bearing无孔轴承
203. oil film bearing油膜轴承
204. oil flooded bearing油膜轴承,液体摩擦轴承
205. oil-bath type bearing油浴润滑式轴承
206. oilless bearing不加油轴承自动润滑轴承石墨润滑轴承,含油轴承
207. oil-retaining bearing含油轴承
208. open spindle bearing开式锭子轴承
209. oscillating bearing关节轴承
210. oscillating journal bearing摆动轴径轴承
211. outboard bearing外置轴承
212. parallel bearing滑动轴承
213. parallel-roller bearing平行滚柱轴承
214. partial bearing半轴承
215. partial journal bearing半围轴承(轴瓦在180°范围内包围着轴颈的滑动轴承)
216. pedestal bearing支承轴承
217. pendulum bearing钟摆轴承
218. pin rocker bearing铰接支座,圆柱枢轴摆动轴承
219. pinion bearing小齿轮轴承
220. piston pin bearing活塞销轴承
221. pivot bearing枢轴承,摆动支座,中心(轴尖)支承,立式止推轴承
222. plain-and -ball bearing滑动与滚动组合轴承
223. plane bearing平面轴承
224. plummer block bearing架座,止推轴承
225. pneumatic bearing空气轴承
226. pocket bearing油盘轴承
227. porous bearing多孔轴承
228. powdiron bearing多孔铁轴承,粉未铁轴承
229. power take-off lever bearing动力输出轴轴承
230. preloaded bearing预紧轴承
231. prelubricated bearing预(加)润滑[油密封]轴承,一次润滑轴承
232. pressure-feed air bearing静压空气轴承
233. pressure-loaded bearing承压轴承
234. proper bearing紧密接触轴承
235. pump bearing泵轴承
236. quill bearing滚针轴承
237. radial journal bearing径向轴承,支持轴承,轴颈轴承
238. radial spherical roller bearing径向球形滚柱轴承
239. radial-thrust bearing径向止推轴承
240. rail bearing轨枕,轨承,轨底支承面
241. rear bearing后轴承(车床)
242. rigid type bearing刚性支承点,刚性支承面非自位滚动轴承
243. rim bearing轮缘座,环承
244. ring-oiled sleeve bearing油环润滑式滑动轴承;油环式滑动轴承
245. rocker bearing桥架)摇轴支座; (桁架)伸缩支座
246. rod bearing杆轴承
247. roller bearing滚柱轴承
248. roller step bearing滚柱止推轴承
249. rolling-contact bearing滚动接触轴承
250. rotating journal bearing转动轴颈轴承
251. round bearing转动件轴承
252. rubber bearing橡胶轴承
253. sealed roller bearing密封式滚子轴承
254. sector gear bearing扇形齿轮轴承
255. segmental bearing弓形轴承,弧形轴承,分片互轴承,轴瓦块轴承
256. self-acting air bearing动压空气轴承
257. self-aligning bearing球面轴承,自位轴承
258. self-setting bearing多向调整轴承
259. shafting bearing轴承
260. shell bearing轴承壳
261. shifting bearing活动支座
262. shock absorber bearing减震器座
263. side rod bearing边杆轴承
264. single plate ball bearing单垫片滚珠轴承
265. single row angular contact ball bearing单列向心推力球轴承
266. single row cylindrical roller bearing单列短圆柱滚子轴承
267. single shield bearing单罩轴承
268. single thrust bearing单向推力轴承,单向止推轴承
269. single-row bearing单列轴承
270. single-row separable ball bearing分离型向心推力球轴承
271. single-row tapered roller bearing单列圆锥滚子轴承
272. sintered metal bearing烧结金属轴承
273. sleeve bearing套筒轴承,滑动轴承
274. slewing bearing旋转枢轴轴承
275. slide bearing滑动轴承
276. sliding double bearing滑动复式轴承
277. snap-ring bearing开口环轴承
278. snap-ring ball bearing(在负荷端)带止动垫圈的滚珠轴承
279. solid journal bearing整体轴颈轴承
280. solid roller bearing实心滚子轴承,整体滚柱轴承
281. special guide bearing特种导承
282. spherical bearing球面轴承,球形支座,球面支承
283. spherical roller thrust bearing推力球面滚子轴承
284. spigot bearing导向轴承,套筒轴承,小载荷轴承,轻载轴承,插口轴承
285. spindle bolt bearing心轴螺栓轴承
286. spiral roller bearing螺旋(式)滚子轴承
287. spot contact bearing滚珠轴承
288. spring plank bearing摇枕吊轴
289. sprocket shaft bearing链轮轴轴承
290. square-bore ball bearing方(轴)孔滚珠轴承
291. squeeze film bearing(挤)压(油)膜轴承
292. starter main shaft bearing起动机主轴轴承
293. steady bearing支撑轴承(防止长轴摆动)
294. steep angle bearing大锥角滚柱轴承
295. steering gear worm thrust bearing转向蜗杆止推轴承
296. steering knuckle thrust bearing转向关节主动轴承
297. steering worm bearing转向蜗杆轴承
298. steering worm sector bearing转向器扇形蜗轮轴承
299. step bearing立式止推轴承,踏板轴承,阶式止推轴承
300. straight roller bearing普通滚柱轴承
301. stuffing box bearing填料压盖轴承,密封轴承
302. suspension bearing吊轴承
303. swing bearing摆动支座,摆锤支座
304. swivel bearing旋转轴承
305. taper-bore cylindrical-roller bearing 锥孔圆柱滚子轴承
306. taper-roller bearing锥形滚柱轴承
307. textolite bearing夹布胶木轴承
308. thermo-expansion compensation angular ball bearing热胀补偿向心球轴承
309. thrust bearing推力轴承,止推轴承推力座
310. tin-copper-graphite bearing青铜石墨轴承
311. tip bearing枢轴承,枢支座
312. toe bearing立式止推轴承
313. top bearing上盖(顶盖)轴承
314. Torrington needle bearing(无内座圈的)冲压外座圈滚针轴承
315. torsion bearing抠转轴承
316. transverse bearing径向轴承
317. truck side bearing(机车的)下旁承,底板,镶板,闸瓦托
318. trunnion bearing耳轴承
319. tumbler bearing铰式支座,摆动支座(轴承)
320. two-direction self-aligning ball thrust
321. bearing双球面止推滚珠轴承,自调止推滚珠轴承
322. two-piece bearing对开轴承,拼合轴承,可调轴承
323. two-point bearing二点交叉定位
324. uncoupling lever shaft bearing互钩开关杆轴承
325. universal-joint cross bearing万向接头轴承
326. universal-joint needle bearing万向节针式轴承
327. upper bearing上轴承,上轴瓦
328. upper center crankshaft bearing曲轴主轴承上中轴瓦
329. water lubricated bearing水润滑轴承
330. water pump shaft bearing水泵轴轴承
331. water-sealed bearing防水轴承
332. weight-carrying roller bearing径向滚柱轴承
333. wheel bearing轮轴轴承
334. wick-lubricated bearing油渑润滑轴承
335. winch worm shaft bearing绞车蜗杆轴承
336. wire race ball bearing钢丝滚道球轴承
337. wooden bearing木制轴承
338. worm bearing蜗杆轴承
339. worm shaft roller conical bearing蜗杆锥棍轴承
340. worm thrust bearing蜗杆止推轴承
341. wrist-pin bearing十字头销衬套,活塞销衬套
1. 滚动轴承 rolling bearing
在支承负荷和彼此相对运动的零件间作滚动运动的轴承,它包括有滚道的零件和带或不带隔离或引导件的滚动体组.可用于承受径向、轴向或径向与轴向的联合负荷.
2. 单列轴承 single row bearing
具有一列滚动体的滚动轴承.
3. 双列轴承 double row bearing
具有两列滚动体的滚动轴承.
4. 多列轴承 multi-row bearing
具有多于两列的滚动体,承受同一方向负荷的滚动轴承,最好是指出列数及轴承类型,例如:"四列向心圆柱滚子轴承".
5. 满装滚动体轴承 full complement bearing
无保持架的轴承,每列滚动体周向间的间隙总和小于滚动体的直径并尽可能小,以使轴承有良好的性能.
6. 角接触轴承 angular contact bearing
公称接触角大于0°而小于90°的滚动轴承.
7. 调心轴承 self-aligning bearing
一滚道是球面形的,能适应两滚道轴心线间的角偏差及角运动的轴承.
8. 可分离的轴承 separable bearing
具有可分离部件的滚动轴承.
9. 不可分离轴承 non-separable bearing
在最终装配后,轴承套圈均不能任意自由分离的滚动轴承.
注:对于不同方法分离零件的轴承,例如有双半套圈(02、01、08)的球轴承不另规定缩略术语.
10. 英制轴承 inch bearing
原设计时外形尺寸及公差以英制单位表示的滚动轴承.
11. 开型轴承 open bearing
无防尘盖及密封圈的滚动轴承.
12. 密封圈轴承 sealed bearing
一面或两面装有密封圈的滚动轴承.
13. 防尘盖轴承 shielded bearing
一面或两面装有防尘盖的滚动轴承.
14. 闭型轴承 capped bearing
带有一个或两个密封圈,一个或两个防尘盖及一个密封圈和一个防尘盖的滚动轴承.
15. 予润滑轴承 prelubricated bearing
制造厂已经充填润滑剂的滚动轴承.
16. 仪器精密轴承 instrument precision bearing
仪器专用的滚动轴承.
17. 组配轴承 matched bearing
配成一对或一组的滚动轴承.
(二)向心轴承
1. 向心轴承 radial bearing
主要用于承受径向负荷的滚动轴承,其公称接触角在0°到45°之间,基本零件为内圈、外圈和带或不带 保持架的滚动体.
2. 径向接触轴承 radial contact bearing
公称接触角为0°的向心滚动轴承.
3. 角接触向心轴承 angular contact radial bearing
公称接触角大于0°到45°的向心滚动轴承.
4. 外球面轴承 insert bearing
有外球面和带锁紧件的宽内圈的向心滚动轴承.主要供简单的外壳使用.
5. 锥孔轴承 tapered bore bearing
内圈有锥孔的向心滚动轴承.
6. 凸缘轴承 flanged bearing
在其一个套圈上,一般是外圈或圆锥外圈上有外径向凸缘的向心滚动轴承.
7. 滚轮(滚动)轴承 track roller (rolling bearing)
有厚截面外圈的向心滚动轴承,作为轮子在导轨上滚动,例如凸轮导轨.
8. 挡圈型滚轮(滚动)轴承 yoke type track roller (rolling bearing)
装有一对平挡圈的滚轮滚动轴承.
9. 万能组配轴承 universal matching bearing
任意选择一套或多套相同的向心滚动轴承一起使用时,可以得到予先对成对或成组安装所规定的特性.
(三)推力轴承
1. 推力轴承 thrust bearing
主要用于承受轴向负荷的滚动轴承,其公称接触角大于45°到90,基本零件为轴圈、座圈和带或不带保持架的滚动体.
2. 轴向接触轴承 axial contact bearing
公称接触角为90°的推力轴承.
3. 角接触推力轴承 angular contact thrust bearing
公称接触角大于45°但小于90°的推力滚动轴承.
4. 单向推力轴承 single direction thrust bearing
只能在一个方向承受轴向负荷的推力滚动轴承.
5. 双向推力轴承 double-direction thrust bearing
可在两个方向承受轴向负荷的推力滚动轴承.
6. 双列双向推力轴承 double row double-direction thrust bearing
有两列滚动体的双向推力滚动轴承,每列只在一个方向承受轴向负荷.
7. 直线(运动)轴承 linear(motion)bearing
两滚道在滚动方向上有相对直线运动的滚动轴承.
(四)球轴承
1. 球轴承 ball bearing
滚动体是球的滚动轴承.
2. 向心球轴承 radial ball bearing
滚动体是球的向心滚动轴承.
3. 深沟球轴承 deep groove ball bearing
每个套圈均具有横截面大约为球的周长三分之一的连续沟型滚道的向心球轴承.
4. 装填槽球轴承 filling slot ball bearing
在沟型球轴承每个套圈的一个挡边上装填槽,以便能装填更多的球.
5. 锁口球轴承 counterbored ball bearing
外圈的一个挡边全部或部分去掉的沟型球轴承.
6. 三点接触球轴承 three point comtact ball bearing
单列角接触球轴承当受纯径向负荷时,每个受负荷的球与一沟道有两点接触,而与另一沟道有一点接触.受纯轴向负荷时,每个球与每一沟道只有一点接触.
7. 四点接触球轴承 four point contact ball bearing
单列角接触球轴承,当受纯径向负荷时,每个受负荷的球与两个沟道各有两点接触,而受纯轴向负荷时,各只有一点接触.
8. 推力球轴承 thrust ball bearing
滚动体是球的推力滚动轴承.
9. 单列双向推力球轴承 single row double-directino thrust ball bearing
接触角大于45°的四点接触球轴承.
10. 双排单向推力球轴承 doubel row single-direction thrust ball bearing
具有双排球的同心滚道且承受相同方向负荷的单向推力球轴承.
(五)滚子轴承
1. 滚子轴承 roller bearing
滚动体是滚子的滚动轴承.
2. 向心滚子轴承 radial roller bearing
滚动体是滚子的向心滚动轴承.
3. 圆柱滚子轴承 cylindrical roller bearing
滚动体是圆柱滚子的向心滚动轴承.
4. 圆锥滚子轴承 tapered roller bearing
滚动体是圆锥滚子的向心滚动轴承.
5. 滚针轴承 needle roller bearing
滚动体是滚针的向心滚动轴承.
6. 冲压外圈滚针轴承 drawn cup needle roller bearing
薄钢板冲压(拉伸)外圈向心滚针轴承,其一端封闭或两端敞开,经常不带内圈使用.
7. (凸)球面滚子轴承 convex roller bearing
滚动体是凸球面滚子的向心滚动轴承.
8. 凹面滚子轴承 concave roller bearing
滚动体是凹面滚子的向心滚动轴承.
9. 球面滚子轴承 spherical roller bearing
滚动体是凸球面或凹面滚子的调心向心滚动轴承.有凸度球面滚子的轴承,外圈有一球面形滚道;有凹面滚子的轴承,其内圈有一球面形滚道.