The Single Row Angular Contact Ball Bearing produced by KOMEL consists of an inner ring, an outer ring, a row of steel balls and a cage. There is a rib on one side of the outer ring or inner ring to limit the axial displacement of the steel balls.
Contact angle (α): determines the axial load capacity. Common angles are 15° (C type), 25° (AC type), and 40° (B type).
Core characteristics
Unidirectional axial load: can only withstand axial force in one direction. The reverse axial force requires another bearing (such as paired use).
Combined load capacity: The axial load capacity increases with the increase of the contact angle (when α=40°, the axial load capacity is about 2.3 times that of α=15°).
Preload-able: Apply preload force through paired installation to improve rigidity and rotation accuracy.
Model Number |
Inner Diameter |
Outer Diameter |
Width |
7000 |
10 |
26 |
8 |
7001 |
12 |
28 |
8 |
7002 |
15 |
32 |
9 |
7003 |
17 |
35 |
10 |
7004 |
20 |
42 |
12 |
7005 |
25 |
47 |
12 |
7006 |
30 |
55 |
13 |
7007 |
35 |
62 |
14 |
7008 |
40 |
68 |
15 |
7009 |
45 |
75 |
16 |
7010 |
50 |
80 |
16 |
7011 |
55 |
90 |
18 |
7012 |
60 |
95 |
18 |
7013 |
65 |
100 |
18 |
7014 |
70 |
110 |
20 |
7015 |
75 |
115 |
20 |
7016 |
80 |
125 |
22 |
7017 |
85 |
130 |
22 |
7018 |
90 |
140 |
24 |
7019 |
95 |
145 |
24 |
7020 |
100 |
150 |
24 |
7021 |
105 |
160 |
26 |
7022 |
110 |
170 |
28 |
7024 |
120 |
180 |
28 |
7026 |
130 |
200 |
33 |
7028 |
140 |
210 |
33 |
7030 |
150 |
225 |
35 |
7032 |
160 |
240 |
38 |
7034 |
170 |
260 |
42 |
7036 |
180 |
280 |
46 |
7038 |
190 |
290 |
46 |
7040 |
200 |
310 |
51 |
7200 |
10 |
30 |
9 |
7201 |
12 |
32 |
10 |
7202 |
15 |
32 |
11 |
7203 |
17 |
40 |
12 |
7204 |
20 |
47 |
14 |
7205 |
25 |
52 |
15 |
7206 |
30 |
62 |
16 |
7207 |
35 |
72 |
17 |
7208 |
40 |
80 |
18 |
7209 |
45 |
85 |
19 |
7210 |
50 |
90 |
20 |
7211 |
55 |
100 |
21 |
7212 |
60 |
110 |
22 |
7213 |
65 |
120 |
23 |
7214 |
70 |
125 |
24 |
7215 |
75 |
130 |
25 |
7216 |
80 |
140 |
26 |
7217 |
85 |
150 |
28 |
7218 |
90 |
160 |
30 |
7219 |
95 |
170 |
32 |
7220 |
100 |
180 |
34 |
7221 |
105 |
190 |
36 |
7222 |
110 |
200 |
38 |
7224 |
120 |
215 |
40 |
7226 |
130 |
230 |
40 |
7228 |
140 |
250 |
42 |
7230 |
150 |
270 |
45 |
7232 |
160 |
290 |
48 |
7234 |
170 |
310 |
52 |
7236 |
180 |
320 |
52 |
7238 |
190 |
340 |
55 |
7240 |
200 |
360 |
58 |
7300 |
10 |
35 |
11 |
7301 |
12 |
37 |
12 |
7302 |
15 |
42 |
13 |
7303 |
17 |
47 |
14 |
7304 |
20 |
52 |
15 |
7305 |
25 |
62 |
17 |
7306 |
30 |
72 |
19 |
7307 |
35 |
80 |
21 |
7308 |
40 |
90 |
23 |
7309 |
45 |
100 |
25 |
7310 |
50 |
110 |
27 |
7311 |
55 |
120 |
29 |
7312 |
60 |
130 |
31 |
7313 |
65 |
140 |
33 |
7314 |
70 |
150 |
35 |
7315 |
75 |
160 |
37 |
7316 |
80 |
170 |
39 |
7317 |
85 |
180 |
41 |
7318 |
90 |
190 |
43 |
7319 |
95 |
200 |
45 |
7320 |
100 |
215 |
47 |
7321 |
105 |
225 |
49 |
7322 |
110 |
240 |
50 |
7324 |
120 |
260 |
55 |
7326 |
130 |
280 |
58 |
7328 |
140 |
300 |
62 |
7330 |
150 |
320 |
65 |
7332 |
160 |
340 |
68 |
7334 |
170 |
360 |
72 |
7336 |
180 |
380 |
75 |
7338 |
190 |
400 |
78 |
7340 |
200 |
420 |
80 |
1. Contact angle suffix
Suffix Contact angle
C 15°General type, suitable for high-speed and precision scenes
AC 25°Balanced radial/axial load, general design
B 40°High axial load capacity
2. Seal type suffix
2RS Double-sided rubber seal (anti-liquid intrusion)
2Z Double-sided iron cover seal (dust-proof)
3. Accuracy grade suffix
P0 Ordinary grade Standard tolerance
P5 High precision Precision equipment such as machine tool spindles
P4 Ultra-precision grade Special fields such as aerospace
4. Paired installation suffix
DB Back-to-back Enhanced stiffness, suitable for scenes with large bending moments
DF Face-to-face Compact axial size
DT Series Large unidirectional axial load
5. Cage material suffix
TN9 Nylon Lightweight, low noise
M Brass Heavy load, high temperature resistance
Typical application scenarios
Machine tool industry: spindle support (DB pairing, α=15° or 25°).
Automotive industry: gearbox gear shaft, clutch release bearing.
Aerospace: turbine engine compressor rotor (ceramic ball bearing, high temperature resistance).
Precision equipment: robot joints, hard disk drives (amplitude required <100nm).
Address
Yaohai industrial park, Xinzhan high tech district,Hefei, China
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