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雙列圓柱滾子軸承
雙列圓柱滾子軸承具有截面小、載荷能力剛性高的特點。主要用於機床、塑料滾筒、磨床以及大型齒輪等。
C&U主要生產NN型和NNU型的雙列圓柱滾子軸承。該類型軸承的分離套圈與組件可以分別安裝，NNU型雙列圓柱滾子軸承即外圈以及滾子和保持架組件可同其內圈分別安裝，便利了軸承的安裝、檢查和維護。
雙列圓柱滾子軸承的內徑有圓柱孔和圓錐孔兩種。C&U生產的NN型和NNU型的軸承，提供待圓柱孔和圓錐孔的兩種。安裝帶圓錐孔的軸承時，有可能達到一定的徑向內部游隙或一定的預負荷。
有的雙列圓柱滾子軸承外圈帶有潤滑油槽或潤滑油孔。C&U可以提供外圈帶潤滑槽和潤滑孔的雙列圓柱滾子軸承，在尺寸表中未列入。
|
主要尺寸 (mm) |
基本額定載荷 (kN) |
極限轉速 (r/min) |
軸承型號 |
|||||
|
d |
D |
B |
Cr |
C0r |
脂潤滑 |
油潤滑 |
圓柱孔 |
圓錐孔 |
|
25 |
47 |
16 |
25.8 |
30.0 |
14000 |
17000 |
NN3005 |
NN3005K |
|
30 |
55 |
19 |
31.0 |
37.0 |
12000 |
14000 |
NN3006 |
NN3006K |
|
35 |
62 |
20 |
39.5 |
50.0 |
10000 |
12000 |
NN3007 |
NN3007K |
|
40 |
68 |
21 |
48.7 |
64.6 |
9000 |
11000 |
NN3008 |
NN3008K |
|
45 |
75 |
23 |
57.6 |
78.9 |
8500 |
10000 |
NN3009 |
NN3009K |
|
50 |
80 |
23 |
65.4 |
90.6 |
7500 |
9000 |
NN3010 |
NN3010K |
|
55 |
90 |
26 |
75.7 |
108.0 |
6700 |
8000 |
NN3011 |
NN3011K |
|
60 |
95 |
26 |
77.4 |
114.0 |
6300 |
7500 |
NN3012 |
NN3012K |
|
65 |
100 |
26 |
81.5 |
124.0 |
6000 |
7100 |
NN3013 |
NN3013K |
|
70 |
110 |
30 |
98.8 |
151.0 |
5600 |
6700 |
NN3014 |
NN3014K |
|
75 |
115 |
30 |
96.5 |
149.0 |
5300 |
6300 |
NN3015 |
NN3015K |
|
80 |
125 |
34 |
123.0 |
194.0 |
4800 |
6000 |
NN3016 |
NN3016K |
|
85 |
130 |
34 |
126.0 |
203.0 |
4500 |
5600 |
NN3017 |
NN3017K |
|
90 |
140 |
37 |
143.0 |
228.0 |
4300 |
5000 |
NN3018 |
NN3018K |
|
95 |
145 |
37 |
154.0 |
255.0 |
4000 |
5000 |
NN3019 |
NN3019K |
|
100 |
140 |
40 |
155.0 |
295.0 |
4000 |
5000 |
NNU4920 |
NNU4920K |
|
140 |
40 |
155.0 |
295.0 |
4000 |
5000 |
NN4920 |
NN4920K |
|
|
150 |
37 |
161.0 |
274.0 |
4000 |
4800 |
NN3020 |
NN3020K |
|
|
105 |
145 |
40 |
161.0 |
315.0 |
3800 |
4800 |
NNU4921 |
NNU4921K |
|
145 |
40 |
161.0 |
315.0 |
3800 |
4800 |
NN4921 |
NN4921K |
|
|
160 |
41 |
201.0 |
328.0 |
3800 |
4500 |
NN3021 |
NN3021K |
|
|
110 |
150 |
40 |
167.0 |
335.0 |
3600 |
4500 |
NNU4922 |
NNU4922K |
|
150 |
40 |
167.0 |
335.0 |
3600 |
4500 |
NN4922 |
NN4922K |
|
|
170 |
45 |
231.0 |
380.0 |
3400 |
4300 |
NN3022 |
NN3022K |
|
|
120 |
165 |
45 |
183.0 |
360.0 |
3200 |
4000 |
NNU4924 |
NNU4924K |
|
165 |
45 |
183.0 |
360.0 |
3200 |
4000 |
NN4924 |
NN4924K |
|
|
180 |
46 |
229.0 |
241.0 |
3200 |
3800 |
NN3024 |
NN3024K |
|
|
130 |
180 |
50 |
238.0 |
487.0 |
3000 |
3800 |
NNU4926 |
NNU4926K |
|
180 |
50 |
238.0 |
487.0 |
3000 |
3800 |
NN4926 |
NN4926K |
|
|
200 |
52 |
265.0 |
457.0 |
3000 |
3600 |
NN3026 |
NN3026K |
|
|
140 |
190 |
50 |
183.0 |
585.0 |
2800 |
3600 |
NNU4928 |
NNU4928K |
|
190 |
50 |
283.0 |
585.0 |
2800 |
3600 |
NN4928 |
NN4928K |
|
|
210 |
53 |
270.0 |
477.0 |
2800 |
3400 |
NN3028 |
NN3028K |
|
|
150 |
210 |
60 |
350.0 |
715.0 |
2600 |
3200 |
NNU4930 |
NNU4930K |
|
210 |
60 |
350.0 |
715.0 |
2600 |
3200 |
NN4930 |
NN4930K |
|
|
225 |
56 |
335.0 |
585.0 |
2600 |
3000 |
NN3030 |
NN3030K |
|
|
160 |
220 |
60 |
365.0 |
760.0 |
2400 |
3000 |
NNU4932 |
NNU4932K |
|
220 |
60 |
365.0 |
760.0 |
2400 |
3000 |
NN4932 |
NN4932K |
|
|
240 |
60 |
375.0 |
660.0 |
2400 |
2800 |
NN3032 |
NN3032K |
|
|
170 |
230 |
60 |
375.0 |
805.0 |
2400 |
2800 |
NNU4934 |
NNU4934K |
|
230 |
60 |
375.0 |
805.0 |
2400 |
2800 |
NN4934 |
NN4934K |
|
|
260 |
67 |
450.0 |
805.0 |
2200 |
2600 |
NN3034 |
NN3034K |
|
|
180 |
250 |
69 |
480.0 |
1020.0 |
2200 |
2600 |
NNU4936 |
NNU4936K |
|
250 |
69 |
480.0 |
1020.0 |
2200 |
2600 |
NN4936 |
NN4936K |
|
|
280 |
74 |
565.0 |
995.0 |
2000 |
2400 |
NN3036 |
NN3036K |
|
|
190 |
260 |
69 |
464.0 |
997.0 |
2000 |
2600 |
NNU4938 |
NNU4938K |
|
260 |
69 |
464.0 |
997.0 |
2000 |
2600 |
NN4938 |
NN4938K |
|
|
290 |
75 |
595.0 |
1080.0 |
2000 |
2400 |
NN3038 |
NN3038K |
|
|
200 |
280 |
80 |
570.0 |
1220.0 |
1900 |
2400 |
NNU4940 |
NNU4940K |
|
280 |
80 |
575.0 |
1220.0 |
1900 |
2400 |
NN4940 |
NN4940K |
|
|
310 |
82 |
707.0 |
1260.0 |
1800 |
2200 |
NN3040 |
NN3040K |
|
|
220 |
300 |
80 |
600.0 |
1330.0 |
1700 |
2200 |
NNU4944 |
NNU4944K |
|
300 |
80 |
600.0 |
1330.0 |
1700 |
2200 |
NN4944 |
NN4944K |
|
|
340 |
90 |
815.0 |
1480.0 |
1700 |
2000 |
NN3044 |
NN3044K |
|
|
240 |
320 |
80 |
637.0 |
1480.0 |
1600 |
2000 |
NNU4948 |
NNU4948K |
|
320 |
80 |
637.0 |
1480.0 |
1600 |
2000 |
NN4948 |
NN4948K |
|
|
360 |
92 |
855.0 |
1660.0 |
1500 |
1800 |
NN3048 |
NN3048K |
|
|
260 |
360 |
100 |
991.0 |
2070.0 |
1400 |
1800 |
NNU4952 |
NNU4952K |
|
360 |
100 |
748.0 |
1700.0 |
1400 |
1800 |
NN4952 |
NN4952K |
|
|
400 |
104 |
1030.0 |
1920.0 |
1400 |
1700 |
NN3052 |
NN3052K |
|
|
280 |
380 |
100 |
960.0 |
2230.0 |
1300 |
1700 |
NNU4956 |
NNU4956K |
|
380 |
100 |
960.0 |
2230.0 |
1300 |
1700 |
NN4956 |
NN4956K |
|
|
420 |
106 |
1109.0 |
2150.0 |
1300 |
1500 |
NN3056 |
NN3056K |
|
|
300 |
420 |
118 |
1230.0 |
2870.0 |
1200 |
1500 |
NNU4960 |
NNU4960K |
|
420 |
118 |
1626.0 |
3924.0 |
1200 |
1500 |
NN4960 |
NN4960K |
|
|
460 |
118 |
1290.0 |
2460.0 |
1200 |
1400 |
NN3060 |
NN3060K |
|
|
320 |
440 |
118 |
1260.0 |
3050.0 |
1100 |
1400 |
NNU4964 |
NNU4964K |
|
480 |
121 |
1350.0 |
2670.0 |
1100 |
1300 |
NN3064 |
NN3064K |
|
|
340 |
520 |
133 |
1670.0 |
3300.0 |
1000 |
1200 |
NN3068 |
NN3068K |
|
360 |
540 |
134 |
1700.0 |
3450.0 |
9500 |
1200 |
NN3072 |
NN3072K |
|
380 |
560 |
180 |
2860.0 |
6000.0 |
- |
1000 |
NNU4076M |
NNU4076KM |
|
400 |
600 |
200 |
3470.0 |
7200.0 |
- |
950 |
NNU4080F |
NNU4080KF |
|
420 |
620 |
200 |
3520.0 |
7500.0 |
- |
900 |
NNU4084M |
NNU4084KM |
|
440 |
650 |
212 |
3910.0 |
8300.0 |
- |
850 |
NNU4088M |
NNU4088KM |
|
460 |
680 |
218 |
4290.0 |
9300.0 |
- |
800 |
NNU4092M |
NNU4092KM |
|
480 |
700 |
218 |
4400.0 |
9650.0 |
- |
750 |
NNU4096M |
NNU4096KM |
|
500 |
720 |
218 |
4460.0 |
10000.0 |
- |
750 |
NNU40/500M |
NNU40/50KM |
|
530 |
780 |
250 |
5500.0 |
12200.0 |
- |
670 |
NNU40/530M |
NNU40/530KM |
|
560 |
820 |
258 |
5720.0 |
12900.0 |
- |
630 |
NNU40/560 |
NNU40/560KM |
|
600 |
870 |
272 |
6820.0 |
15600.0 |
- |
600 |
NNU40/600M |
NNU40/600KM |
|
630 |
920 |
290 |
7650.0 |
17600.0 |
- |
560 |
NNU40/630M |
NNU40/630KM |
|
670 |
980 |
308 |
8420.0 |
19600.0 |
- |
500 |
NNU40/670M |
NNU40/670KM |
|
710 |
1030 |
315 |
9350.0 |
21600.0 |
- |
480 |
NNU40/710M |
NNU40/710KM |
|
750 |
1090 |
335 |
10500.0 |
24000.0 |
- |
430 |
NNU40/750M |
NNU40/750KM |
|
800 |
1150 |
345 |
10800.0 |
26000.0 |
- |
400 |
NNU40/800M |
NNU40/800KM |
|
850 |
1220 |
365 |
11700.0 |
28500.0 |
- |
360 |
NNU40/850M |
NNU40/850KM |
|
900 |
1280 |
375 |
12800.0 |
31500.0 |
- |
340 |
NNU40/900M |
NNU40/900KM |
|
950 |
1360 |
412 |
14200.0 |
35500.0 |
- |
320 |
NNU40/950M |
NNU40/950KM |
|
1000 |
1420 |
412 |
15400.0 |
38000.0 |
- |
300 |
NNU40/1000M |
NNU40/1000KM |
