 
                        Double Row Ball Bearing External Gear
Double row ball slewing bearing has three seat ring, the steel ball and the spacing block can be directly arrange into the upper and lower races, two rows of upper and lower steel balls with differently diameter are fitted according to the stress condition.
This kind of open assemly is very convenient, for the upper and lower bear raceway arc angles is 90, which can bear large axial forces and tilting moment. When the radial force is greater than 0.1 times the axial force need to be specially designed the raceway.
Double row different ball slewing bearing's axial and radial size are relatively large and solid in structure, so it is specially fpr the medium diameter tower cranes,truck mounted cranes etc.loading and unloading machinery.
Weight/KG:100-4700
Note: 1. N1 is the numbers of lubricating holes. Oil cup M10×1JB/T7940.1~JB/T7940. 2. The Oil nipple's location can be change according to the user's application. 3. n-φ can change to tapped hole, the diameter of tapped hole is M, and depth is 2M. 4. The tangential tooth force in the form is the max tooth force; the nominal tangential tooth force is 1/2 of the max one. 5. "K" is addendum reduction coefficient  
 
No 
External Gear 
DL
mmDimensions 
Mounting Dimension 
Structural Dimension 
Gear Data 
Gear circumferential force 
Weight 
kg
 
D 
mmd 
mmH 
mmD1 
mmD2 
mmn 
mm 
n1 
mmH1 
mmh 
mmb 
mmx 
m 
mmD e 
mmz 
Normalizing 
Z 104NQuenching 
T 104N
 
1 
021.25.500 
616 
384 
106 
580 
420 
20 
18 
4 
96 
26 
60 
0.5 
5 
644 
126 
3.7 
5.2 
100 
 
022.25.500 
6 
646.8 
105 
4.5 
6.2 
 
2 
021.25.560 
676 
444 
106 
640 
480 
20 
18 
4 
96 
26 
60 
0.5 
5 
704 
138 
3.7 
5.2 
115 
 
022.25.560 
6 
706.8 
115 
4.5 
6.2 
 
3 
021.25.630 
746 
514 
106 
710 
550 
24 
18 
4 
96 
26 
60 
0.5 
6 
790.8 
129 
4.5 
6.2 
130 
 
022.25.630 
8 
790.4 
96 
6 
8.3 
 
4 
021.25.710 
826 
594 
106 
790 
630 
24 
18 
4 
96 
26 
60 
0.5 
6 
862.8 
141 
4.5 
6.2 
140 
 
022.25.710 
8 
862.4 
105 
6 
8.3 
 
5 
021.30.800 
942 
658 
124 
898 
702 
30 
22 
6 
114 
29 
80 
0.5 
8 
982.4 
120 
8 
11.1 
200 
 
022.30.800 
10 
988 
96 
10 
14 
 
6 
021.30.900 
1042 
758 
124 
998 
802 
30 
22 
6 
114 
29 
80 
0.5 
8 
1086.4 
133 
8 
11.1 
250 
 
022.30.900 
10 
1088 
106 
10 
14 
 
7 
021.30.1000 
1142 
858 
124 
1098 
902 
36 
22 
6 
114 
29 
80 
0.5 
10 
1198 
117 
10 
14 
300 
 
022.30.1000 
12 
1197.6 
97 
12 
16.7 
 
8 
021.30.1120 
1262 
978 
124 
1218 
1022 
36 
22 
6 
114 
29 
80 
0.5 
10 
1318 
129 
10 
14 
340 
 
022.30.1120 
12 
1317.6 
107 
12 
16.7 
 
9 
021.40.1250 
1426 
1074 
160 
1374 
1126 
40 
26 
5 
150 
39 
90 
0.5 
12 
1497.6 
122 
13.5 
18.8 
580 
 
022.40.1250 
14 
1495.2 
104 
15.8 
21.9 
 
10 
021.40.1400 
1576 
1224 
160 
1524 
1272 
40 
26 
5 
150 
39 
90 
0.5 
12 
1641.6 
134 
13.5 
18.8 
650 
 
022.40.1400 
14 
1649.2 
115 
15.8 
21.9 
 
11 
021.40.1600 
1776 
1424 
160 
1724 
1476 
45 
26 
5 
150 
39 
90 
0.5 
14 
1845.2 
129 
15.8 
21.9 
750 
 
022.40.1600 
16 
1852.8 
113 
18.1 
25 
 
12 
021.40.1800 
1976 
1624 
160 
1924 
1676 
45 
26 
5 
150 
39 
90 
0.5 
14 
2055.2 
144 
15.8 
21.9 
820 
 
022.40.1800 
16 
2060.8 
126 
18.1 
25 
 
13 
021.50.2000 
2215 
1785 
190 
2149 
1851 
48 
33 
8 
178 
47 
120 
0.5 
16 
2300.8 
141 
24.1 
33.3 
1150 
 
022.50.2000 
18 
2300.4 
125 
27.1 
37.5 
 
14 
021.50.2240 
2455 
2025 
190 
2389 
2091 
48 
33 
8 
178 
47 
120 
0.5 
16 
2540.8 
156 
24.1 
33.3 
1500 
 
022.50.2240 
18 
2552.4 
139 
27.1 
37.5 
 
15 
021.50.2500 
2715 
2285 
190 
2649 
2351 
56 
33 
8 
178 
47 
120 
0.5 
18 
2804.4 
153 
27.1 
37.5 
1700 
 
022.50.2500 
20 
2816 
138 
30.1 
41.8 
 
16 
021.50.2800 
3015 
2585 
190 
2949 
2651 
56 
33 
8 
178 
47 
120 
0.5 
18 
3110.4 
170 
27.1 
37.5 
1900 
 
022.50.2800 
20 
3116 
153 
30.1 
41.8 
 
17 
021.60.3150 
3428 
2872 
226 
3338 
2962 
56 
45 
8 
214 
56 
150 
0.5 
20 
3536 
174 
37.7 
52.2 
3300 
 
022.60.3150 
22 
3537.6 
158 
41.5 
57.4 
 
18 
021.60.3550 
3828 
3272 
226 
3738 
3362 
56 
45 
8 
214 
56 
150 
0.5 
20 
3936 
194 
37.7 
52.2 
3700 
 
022.60.3550 
22 
3933.6 
176 
41.5 
57.4 
 
19 
021.60.4000 
4278 
3722 
226 
4188 
3812 
60 
45 
10 
214 
56 
150 
0.5 
22 
4395.6 
197 
41.5 
57.4 
4200 
 
022.60.4000 
25 
4395 
173 
47.1 
65.2 
 
20 
021.60.4500 
4778 
4222 
226 
4688 
4312 
60 
45 
10 
214 
56 
150 
0.5 
22 
4879.6 
219 
41.5 
57.4 
4700 
 
022.60.4500 
25 
4895 
193 
47.1 
65.2 
