双向推力角接触球轴承
双向推力角接触球轴承具有精度高、刚性好、润滑充分、温升低、转速高和拆卸方便等优点。因而被广泛应用于磨床、镗床、铣床、车床和钻床等主轴上。
双向推力角接触球轴承的特点是可以同时承受径向和轴向载荷的联合载荷,限制轴的两方面的轴向位移。它是由外圈、内圈、钢球、保持架组成,能在较高的速度下稳定地工作。安装时应注意,虽然轴承可承受双向轴向载荷,但若一侧有装球缺口时,则应注意不要让主要轴向载荷通过有缺口的一侧沟边。
当它与NN3000K型圆锥内孔的双列圆柱滚子轴承配用时,双向推力角接触球轴承可以放置在圆锥轴颈的任何一面。通常2344系列置于锥轴颈的小轴颈的一面,2347置于大轴颈的一面。建议优先选用2344系列轴承。
轴承代号 |
外形尺寸 |
安装尺寸 |
额定载荷 |
极限转速 |
油槽和油孔 |
轴向刚度 |
重量 |
d |
D |
d1 |
T |
C |
B |
rsmin |
r1smin |
da |
Da |
ra |
rb |
Ca |
Coa |
脂 |
油 |
n |
k |
Ra |
≈ |
mm |
min |
max |
max |
max |
kN |
r/min |
mm |
N/μm |
Kg |
234406M |
30 |
55 |
48 |
32 |
16 |
8 |
1.0 |
0.2 |
40.5 |
50.5 |
1.0 |
0.15 |
14.3 |
24 |
11000 |
16000 |
4.8 |
3.2 |
276 |
0.29 |
234706M |
32 |
55 |
48 |
32 |
16 |
8 |
1.0 |
0.2 |
40.5 |
50.5 |
1.0 |
0.15 |
14.3 |
24 |
11000 |
16000 |
4.8 |
3.2 |
276 |
0.27 |
234407M |
35 |
62 |
53 |
34 |
17 |
8.5 |
1.0 |
0.2 |
46.5 |
57.5 |
1.0 |
0.15 |
17.6 |
31.5 |
9500 |
14000 |
4.8 |
3.2 |
316 |
0.38 |
234707M |
37 |
62 |
53 |
34 |
17 |
8.5 |
1.0 |
0.2 |
46.5 |
57.5 |
1.0 |
0.15 |
17.6 |
31.5 |
9500 |
14000 |
4.8 |
3.2 |
316 |
0.35 |
234408M |
40 |
68 |
58.5 |
36 |
18 |
9 |
1.0 |
0.2 |
51.5 |
63.5 |
1.0 |
0.15 |
20.8 |
38 |
8500 |
12000 |
1.8 |
3.2 |
354 |
0.46 |
234708M |
42 |
68 |
58.5 |
36 |
18 |
9 |
1.0 |
0.2 |
51.5 |
63.5 |
1.0 |
0.15 |
20.8 |
38 |
8500 |
12000 |
1.8 |
3.2 |
354 |
0.42 |
234409M |
45 |
75 |
65 |
38 |
19 |
9.5 |
1.0 |
0.2 |
57.5 |
70.0 |
1.0 |
0.15 |
23.2 |
45 |
7500 |
10000 |
4.8 |
3.2 |
387 |
0.57 |
234709M |
47 |
75 |
65 |
38 |
19 |
9.5 |
1.0 |
0.2 |
57.5 |
70.0 |
1.0 |
0.15 |
23.2 |
45 |
7500 |
10000 |
4.8 |
3.2 |
387 |
0.53 |
234410M |
50 |
80 |
70 |
38 |
19 |
9.5 |
1.0 |
0.2 |
62.5 |
75.0 |
1.0 |
0.15 |
24 |
49 |
7000 |
9500 |
4.8 |
3.2 |
410 |
0.62 |
234710M |
52 |
80 |
70 |
38 |
19 |
9.5 |
1.0 |
0.2 |
62.5 |
75.0 |
1.0 |
0.15 |
24 |
49 |
7000 |
9500 |
4.8 |
3.2 |
410 |
0.58 |
234411M |
55 |
90 |
78 |
44 |
22 |
11 |
1.1 |
0.3 |
69.0 |
84.5 |
1.0 |
0.3 |
34 |
67 |
6300 |
8500 |
6.5 |
3.2 |
458 |
0.94 |
234711M |
57 |
90 |
78 |
44 |
22 |
11 |
1.1 |
0.3 |
69.0 |
84.5 |
1.0 |
0.3 |
34 |
67 |
6300 |
8500 |
6.5 |
3.2 |
458 |
0.88 |
234412M |
60 |
95 |
83 |
44 |
22 |
11 |
1.1 |
0.3 |
74.0 |
89.5 |
1.0 |
0.3 |
33.5 |
68 |
6000 |
8000 |
6.5 |
3.2 |
455 |
1.01 |
234712M |
62 |
95 |
83 |
44 |
22 |
11 |
1.1 |
0.3 |
74.0 |
89.5 |
1.0 |
0.3 |
33.5 |
68 |
6000 |
8000 |
6.5 |
3.2 |
455 |
0.94 |
234413M |
65 |
100 |
88 |
44 |
22 |
11 |
1.1 |
0.3 |
79.0 |
94.5 |
1.0 |
0.3 |
36 |
76.5 |
5600 |
7500 |
6.5 |
3.2 |
506 |
1.08 |
234713M |
67 |
100 |
88 |
44 |
22 |
11 |
1.1 |
0.3 |
79.0 |
94.5 |
1.0 |
0.3 |
36 |
76.5 |
5600 |
7500 |
6.5 |
3.2 |
506 |
1.01 |
234414M |
70 |
110 |
97 |
48 |
24 |
12 |
1.1 |
0.3 |
86.5 |
103.5 |
1.0 |
0.3 |
42.5 |
93 |
5300 |
7000 |
6.5 |
3.2 |
552 |
1.49 |
234714M |
73 |
110 |
97 |
48 |
24 |
12 |
1.1 |
0.3 |
86.5 |
103.5 |
1.0 |
0.3 |
42.5 |
93 |
5300 |
7000 |
6.5 |
3.2 |
550 |
1.36 |
234415M |
75 |
115 |
102 |
48 |
24 |
12 |
1.1 |
0.3 |
91.5 |
108.5 |
1.0 |
0.3 |
44 |
100 |
5000 |
6700 |
6.5 |
3.2 |
589 |
1.57 |
234715M |
78 |
115 |
102 |
48 |
24 |
12 |
1.1 |
0.3 |
91.5 |
108.5 |
1.0 |
0.3 |
44 |
100 |
5000 |
6700 |
6.5 |
3.2 |
589 |
1.43 |
234416M |
80 |
125 |
110 |
54 |
27 |
13.5 |
1.1 |
0.3 |
98.5 |
117.0 |
1.0 |
0.3 |
52 |
120 |
4500 |
6000 |
6.5 |
3.2 |
640 |
2.16 |
234716M |
83 |
125 |
110 |
54 |
27 |
13.5 |
1.1 |
0.3 |
98.5 |
117.0 |
1.0 |
0.3 |
52 |
120 |
4500 |
6000 |
6.5 |
3.2 |
640 |
1.98 |
234417M |
85 |
130 |
115 |
54 |
27 |
13.5 |
1.1 |
0.3 |
103.5 |
122.0 |
1.0 |
0.3 |
52 |
125 |
4500 |
6000 |
9.5 |
4.8 |
655 |
2.25 |
234717M |
88 |
130 |
115 |
54 |
27 |
13.5 |
1.1 |
0.3 |
1035.0 |
122.0 |
1.0 |
0.3 |
52 |
125 |
4500 |
6000 |
9.5 |
4.8 |
655 |
2.07 |
234418M |
90 |
140 |
123 |
60 |
30 |
15 |
1.5 |
0.3 |
110.5 |
130.5 |
1.5 |
0.3 |
61 |
146 |
4000 |
5300 |
9.5 |
4.8 |
708 |
2.92 |
234718M |
93 |
140 |
123 |
60 |
30 |
15 |
1.5 |
0.3 |
110.5 |
130.5 |
1.5 |
0.3 |
61 |
146 |
4000 |
5300 |
9.5 |
4.8 |
708 |
2.71 |
234419M |
95 |
145 |
128 |
60 |
30 |
15 |
1.5 |
0.3 |
115.5 |
135.5 |
1.5 |
0.3 |
61 |
150 |
4000 |
5300 |
9.5 |
4.8 |
724 |
3.04 |
234719M |
98 |
145 |
128 |
60 |
30 |
15 |
1.5 |
0.3 |
115.5 |
135.5 |
1.5 |
0.3 |
61 |
150 |
4000 |
5300 |
9.5 |
4.8 |
724 |
2.83 |
234420M |
100 |
150 |
133 |
60 |
30 |
15 |
1.5 |
0.3 |
120.5 |
140.5 |
1.5 |
0.3 |
62 |
156 |
3800 |
5000 |
9.5 |
4.8 |
843 |
3.17 |
234720M |
103 |
150 |
133 |
60 |
30 |
15 |
1.5 |
0.3 |
120.5 |
140.5 |
1.5 |
0.3 |
62 |
156 |
3800 |
5000 |
9.5 |
4.8 |
843 |
2.95 |
234421M |
105 |
160 |
142 |
66 |
33 |
16.5 |
2 |
0.6 |
128.0 |
150.0 |
2.0 |
0.6 |
69.5 |
176 |
3600 |
4800 |
9.5 |
4.8 |
775 |
4.07 |
234721M |
109 |
160 |
142 |
66 |
33 |
16.5 |
2 |
0.6 |
128.0 |
150.0 |
2.0 |
0.6 |
69.5 |
176 |
3600 |
4800 |
9.5 |
4.8 |
775 |
3.73 |
234422M |
110 |
170 |
150 |
72 |
36 |
18 |
2 |
0.6 |
134.5 |
160.0 |
2.0 |
0.6 |
90 |
224 |
3400 |
4500 |
9.5 |
4.8 |
853 |
5.19 |
234722M |
114 |
170 |
150 |
72 |
36 |
18 |
2 |
0.6 |
134.5 |
160.0 |
2.0 |
0.6 |
90 |
224 |
3400 |
4500 |
9.5 |
4.8 |
853 |
4.79 |
234424M |
120 |
180 |
160 |
72 |
36 |
18 |
2 |
0.6 |
144.5 |
170.0 |
2.0 |
0.6 |
93 |
240 |
3200 |
4300 |
9.5 |
4.8 |
996 |
5.56 |
234724M |
124 |
130 |
160 |
72 |
36 |
18 |
2 |
0.6 |
144.5 |
170.0 |
2.0 |
0.6 |
93 |
240 |
3200 |
4300 |
9.5 |
4.8 |
996 |
5.14 |
234426M |
130 |
200 |
177 |
84 |
42 |
21 |
2 |
0.6 |
159.0 |
188.0 |
2.0 |
0.6 |
118 |
300 |
2800 |
3800 |
12.2 |
6.3 |
978 |
8.20 |
234726M |
135 |
200 |
177 |
84 |
42 |
21 |
2 |
0.6 |
159.0 |
188.0 |
2.0 |
0.6 |
118 |
300 |
2800 |
3800 |
12.2 |
6.3 |
978 |
7.58 |
234428M |
140 |
210 |
187 |
84 |
42 |
21 |
2.1 |
0.6 |
169.0 |
198.0 |
2.1 |
0.6 |
122 |
320 |
2600 |
3600 |
12.2 |
6.3 |
1034 |
8.78 |
234728M |
145 |
210 |
187 |
84 |
42 |
21 |
2.1 |
0.6 |
169.0 |
198.0 |
2.1 |
0.6 |
122 |
320 |
2600 |
3600 |
12.2 |
6.3 |
1034 |
8.07 |
234430M |
150 |
225 |
200 |
90 |
45 |
22.5 |
2.1 |
0.6 |
181.0 |
211.5 |
2.1 |
0.6 |
132 |
355 |
2600 |
3600 |
15.0 |
8.0 |
1183 |
10.80 |
234730M |
155 |
225 |
200 |
90 |
45 |
22.5 |
2.1 |
0.6 |
181.0 |
221.5 |
2.1 |
0.6 |
132 |
355 |
2600 |
3600 |
15.0 |
8.0 |
1183 |
9.95 |
234432M |
160 |
240 |
212 |
96 |
48 |
24 |
2.1 |
0.6 |
192.5 |
226.0 |
2.1 |
0.6 |
156 |
415 |
2400 |
3400 |
15.0 |
8.0 |
1149 |
12.90 |
234732M |
165 |
240 |
212 |
96 |
48 |
24 |
2.1 |
0.6 |
192.5 |
226.0 |
2.1 |
0.6 |
156 |
415 |
2400 |
3400 |
15.0 |
8.0 |
1149 |
12.00 |
234434M |
170 |
260 |
230 |
108 |
54 |
27 |
2.1 |
0.6 |
206.5 |
245.0 |
2.1 |
0.6 |
193 |
520 |
2200 |
3200 |
15.0 |
8.0 |
1362 |
17.70 |
234734M |
176 |
260 |
230 |
108 |
54 |
27 |
2.1 |
0.6 |
206.5 |
245.0 |
2.1 |
0.6 |
193 |
520 |
2200 |
3200 |
15.0 |
8.0 |
1362 |
16.30 |
234436M |
180 |
280 |
248 |
120 |
60 |
30 |
2.1 |
0.6 |
221.0 |
263.0 |
2.1 |
0.6 |
216 |
585 |
2000 |
3000 |
15.0 |
8.0 |
1315 |
23.40 |
234736M |
187 |
280 |
248 |
120 |
60 |
30 |
2.1 |
0.6 |
221.0 |
263.0 |
2.1 |
0.6 |
216 |
585 |
2000 |
3000 |
15.0 |
8.0 |
1315 |
21.50 |
234438M |
190 |
290 |
258 |
120 |
60 |
30 |
2.1 |
0.6 |
231.0 |
273.0 |
2.1 |
0.6 |
224 |
630 |
1900 |
2800 |
15.0 |
8.0 |
1495 |
25.70 |
234738M |
197 |
290 |
258 |
120 |
60 |
30 |
2.1 |
0.6 |
231.0 |
273.0 |
2.1 |
0.6 |
224 |
630 |
1900 |
2800 |
15.0 |
8.0 |
1495 |
22.60 |
234440M |
200 |
310 |
274 |
132 |
66 |
33 |
2.1 |
0.6 |
245.0 |
291.5 |
2.1 |
0.6 |
265 |
720 |
1800 |
2600 |
15.0 |
8.0 |
1449 |
31.50 |
234740M |
207 |
310 |
274 |
132 |
66 |
33 |
2.1 |
0.6 |
245.0 |
291.5 |
2.1 |
0.6 |
265 |
720 |
1800 |
2600 |
15.0 |
8.0 |
1449 |
29.20 |
234444M |
220 |
340 |
304 |
144 |
72 |
36 |
3 |
1.1 |
269.0 |
318.0 |
2.5 |
1.0 |
315 |
900 |
1600 |
2200 |
15.0 |
8.0 |
1629 |
41.70 |
234744M |
228 |
340 |
304 |
144 |
72 |
36 |
3 |
1.1 |
269.0 |
318.0 |
2.5 |
1.0 |
315 |
900 |
1600 |
2200 |
15.0 |
8.0 |
1629 |
38.50 |
234448M |
240 |
360 |
322 |
144 |
72 |
36 |
3 |
1.1 |
289.0 |
338.0 |
2.5 |
1.0 |
325 |
965 |
1500 |
2000 |
15.0 |
8.0 |
1729 |
43.80 |
234748M |
248 |
360 |
322 |
144 |
72 |
36 |
3 |
1.1 |
289.0 |
338.0 |
2.5 |
1.0 |
325 |
965 |
1500 |
2000 |
15.0 |
8.0 |
1729 |
40.40 |
234452M |
260 |
400 |
354 |
164 |
82 |
41 |
4 |
1.5 |
317.5 |
374.5 |
3.0 |
1.5 |
380 |
1180 |
1400 |
1900 |
17.7 |
9.5 |
1814 |
64.50 |
234752M |
269 |
400 |
354 |
164 |
82 |
41 |
4 |
1.5 |
317.5 |
374.5 |
3.0 |
1.5 |
380 |
1180 |
1400 |
1900 |
17.7 |
9.5 |
1814 |
59.70 |
234456M |
280 |
420 |
374 |
164 |
82 |
41 |
4 |
1.5 |
337.5 |
394.5 |
3.0 |
1.5 |
390 |
1270 |
1300 |
1800 |
17.7 |
9.5 |
1920 |
69.00 |
234756M |
289 |
420 |
374 |
164 |
82 |
41 |
4 |
1.5 |
337.5 |
394.5 |
3.0 |
1.5 |
390 |
1270 |
1300 |
1800 |
17.7 |
9.5 |
1920 |
63.80 |