CCTY Bearing | BK-1 Series
The BK-1 Series is a top-of-the-line bushing system. Ask about our sintering process, and bronze bushings.
BK-1 Series, BK-1 bushes, BK-1 bushings, BK-1 bush, BK-1 bush
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BK-1 Series

View an easy-to-reference version of thisĀ BK-1W chart by clicking here.

Part No. Nominal Diameter Wall Thickness
S3
Width
B
Shaft
Diameter
Housing
Bore
Bushing Bore After Assembly Clearance
Di Do Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
BK-1W 0203 2 3.5 0.725
0.745
2.75
3.25
1.994
2.000
3.500
3.508
2.010
2.058
0.010
0.064
BK-1W 0205 4.75
5.25
BK-1W 0303 3 4.5 0.730
0.750
2.75
3.25
2.994
3.000
4.500
4.508
3.000
3.048
0.000
0.054
BK-1W 0305 4.75
5.25
BK-1W 0306 5.75
6.25
BK-1W 0403 4 5.5 0.730
0.750
2.75
3.25
3.992
4.000
5.500
5.508
4.000
4.048
0.000
0.056
BK-1W 0404 3.75
4.25
BK-1W 0406 5.75
6.25
BK-1W 0410 9.75
10.25
BK-1W 0505 5 7 0.980
1.005
4.75
5.25
4.978
4.990
7.000
7.015
4.990
5.055
0.000
0.077
BK-1W 0508 7.75
8.25
BK-1W 0510 9.75
10.25
BK-1W 0604 6 8 0.980
1.005
3.75
4.25
5.978
5.990
8.000
8.015
5.990
6.055
0.000
0.077
BK-1W 0606 5.75
6.25
BK-1W 0608 7.75
8.25
BK-1W 0610 9.75
10.25
BK-1W 0710 7 9 0.980
1.005
9.75
10.25
6.972
6.987
9.000
9.015
6.990
7.055
0.003
0.083
BK-1W 0806 8 10 0.980
1.005
5.75
6.25
7.972
7.987
10.000
10.015
7.990
8.055
0.003
0.083
BK-1W 0808 7.75
8.25
BK-1W 0810 9.75
10.25
BK-1W 0812 11.75
12.25
BK-1W 1008 10 12 0.980
1.005
7.75
8.25
9.972
9.987
12.000
12.018
9.990
10.058
0.003
0.086
BK-1W 1010 9.75
10.25
BK-1W 1012 11.75
12.25
BK-1W 1015 14.75
15.25
BK-1W 1020 19.75
20.25
BK-1W 1208 12 14 0.980
1.005
7.75
8.25
11.984
11.966
14.018
14.000
12.058
11.990
0.006
0.092
BK-1W 1210 9.75
10.25
BK-1W 1212 11.75
12.25
BK-1W 1215 14.75
15.25
BK-1W 1220 19.75
20.25
BK-1W 1225 24.75
25.25
BK-1W 1310 13 15 0.980
1.005
9.75
10.25
12.966
12.984
15.000
15.018
12.990
13.058
0.006
0.092
BK-1W 1320 19.75
20.25
BK-1W 1405 14 16 0.980
1.005
4.75
5.25
13.966
13.984
16.000
16.018
13.990
14.058
0.006
0.092
BK-1W 1410 9.75
10.25
BK-1W 1412 11.75
12.25
BK-1W 1415 14.75
15.25
BK-1W 1420 19.75
20.25
BK-1W 1425 24.75
25.25
BK-1W 1510 15 17 0.980
1.005
9.75
10.25
14.966
14.984
17.000
17.018
14.990
15.058
0.006
0.092
BK-1W 1512 11.75
12.25
BK-1W 1515 14.75
15.25
BK-1W 1520 19.75
20.25
BK-1W 1525 24.75
25.25
BK-1W 1610 16 18 0.980
1.005
9.75
10.25
15.966
15.984
18.000
18.018
15.990
16.058
0.006
0.092
BK-1W 1612 11.75
12.25
BK-1W 1615 14.75
15.25
BK-1W 1620 19.75
20.25
BK-1W 1625 24.75
25.25
BK-1W 1720 17 19 0.980
1.005
19.75
20.25
16.966
16.984
19.000
19.021
16.990
17.061
0.006
0.095
BK-1W 1810 18 20 0.980
1.005
9.75
10.25
17.966
17.984
20.000
20.021
17.990
18.061
0.006
0.095
BK-1W 1815 14.75
15.25
BK-1W 1820 19.75
20.25
BK-1W 1825 24.75
25.25
BK-1W 2010 20 23 1.475
1.505
9.75
10.25
19.959
19.980
23.000
23.021
19.990
20.071
0.010
0.112
BK-1W 2015 14.75
15.25
BK-1W 2020 19.75
20.25
BK-1W 2025 24.75
25.25
BK-1W 2030 29.75
30.25
BK-1W 2215 22 25 1.475
1.505
14.75
15.25
21.959
21.980
25.000
25.021
21.990
22.071
0.010
0.112
BK-1W 2220 19.75
20.25
BK-1W 2225 24.75
25.25
BK-1W 2230 29.75
30.25
BK-1W 2415 24 27 1.475
1.505
14.75
15.25
23.959
23.980
27.000
27.021
23.990
24.071
0.010
0.112
BK-1W 2420 19.75
20.25
BK-1W 2425 24.75
25.25
BK-1W 2430 29.75
30.25
BK-1W 2515 25 28 1.475
1.505
14.75
15.25
24.959
24.980
28.000
28.021
24.990
25.071
0.010
0.112
BK-1W 2520 19.75
20.25
BK-1W 2525 24.75
25.25
BK-1W 2530 29.75
30.25
BK-1W 2550 49.75
50.25
BK-1W 2815 28 32 1.970
2.005
14.75
15.25
27.959
27.980
32.000
32.025
27.990
28.085
0.010
0.126
BK-1W 2820 19.75
20.25
BK-1W 2825 24.75
25.25
BK-1W 2830 29.75
30.25
BK-1W 3010 30 34 1.970
2.005
9.75
10.25
29.959
29.980
34.000
34.025
29.990
30.085
0.010
0.126
BK-1W 3015 14.75
15.25
BK-1W 3020 19.75
20.25
BK-1W 3025 24.75
25.25
BK-1W 3030 29.75
30.25
BK-1W 3040 39.75
40.25
BK-1W 3220 32 36 1.970
2.005
19.75
20.25
31.950
31.975
36.000
36.025
31.990
32.085
0.015
0.135
BK-1W 3230 29.75
30.25
BK-1W 3240 39.75
40.25
BK-1W 3520 35 39 1.970
2.005
19.75
20.25
34.950
34.975
39.000
39.025
34.990
35.085
0.015
0.135
BK-1W 3530 29.75
30.25
BK-1W 3535 34.75
35.25
BK-1W 3540 39.75
40.25
BK-1W 3550 49.75
50.25
BK-1W 3720 37 41 1.970
2.005
19.75
20.25
36.950
36.975
41.000
41.025
36.990
37.085
0.015
0.135
BK-1W 3815 38 42 1.970
2.005
14.75
15.25
37.950
37.975
42.000
42.025
37.990
38.085
0.015
0.135
BK-1W 3820 19.75
20.25
BK-1W 3830 29.75
30.25
BK-1W 3840 39.75
40.25
BK-1W 4020 40 44 1.970
2.005
19.75
20.25
39.950
39.975
44.000
44.025
39.990
40.085
0.015
0.135
BK-1W 4030 29.75
30.25
BK-1W 4040 39.75
40.25
BK-1W 4050 49.75
50.25
BK-1W 4520 45 50 2.460
2.505
19.75
20.25
44.950
44.975
50.000
50.025
44.990
45.105
0.105
0.155
BK-1W 4530 29.75
30.25
BK-1W 4540 39.75
40.25
BK-1W 4545 44.75
45.25
BK-1W 4550 49.75
50.25
BK-1W 5020 50 55 2.460
2.505
19.75
20.25
49.950
49.975
55.000
55.030
49.990
50.110
0.015
0.160
BK-1W 5030 29.75
30.25
BK-1W 5040 39.75
40.25
BK-1W 5050 49.75
50.25
BK-1W 5060 49.75
60.25
BK-1W 5520 55 60 2.460
2.505
19.75
20.25
54.940
54.970
60.000
60.030
54.990
55.110
0.020
0.170
BK-1W 5525 24.75
25.25
BK-1W 5530 29.75
30.25
BK-1W 5540 39.75
40.25
BK-1W 5550 49.75
50.25
BK-1W 5555 54.75
55.25
BK-1W 5560 59.75
60.25
BK-1W 6020 60 65 2.460
2.505
19.75
20.25
59.940
59.970
65.000
65.030
59.990
60.110
0.020
0.170
BK-1W 6030 29.75
30.25
BK-1W 6040 39.75
40.25
BK-1W 6050 49.75
50.25
BK-1W 6060 59.75
60.25
BK-1W 6070 69.75
70.25
BK-1W 6530 65 70 2.460
2.505
29.75
30.25
64.940
64.970
70.000
70.030
64.990
65.110
0.020
0.170
BK-1W 6550 49.75
50.25
BK-1W 6570 69.75
70.25
BK-1W 7030 70 75 2.460
2.505
29.75
30.25
69.940
69.970
75.000
75.030
69.990
70.110
0.020
0.170
BK-1W 7040 39.75
40.25
BK-1W 7050 49.75
50.25
BK-1W 7070 69.75
70.25
BK-1W 7540 75 80 2.460
2.505
39.75
40.25
74.940
74.970
80.000
80.030
74.990
75.110
0.020
0.170
BK-1W 7560 59.75
60.25
BK-1W 7580 79.75
80.25
BK-1W 8040 80 85 2.440
2.490
39.50
40.50
79.954
80.000
85.000
85.035
80.020
80.155
0.020
0.201
BK-1W 8060 80 59.50
60.50
BK-1W 8080 80 79.50
80.50
BK-1W 80100 80 99.50
100.50
BK-1W 8530 85 90 2.440
2.490
29.50
30.50
84.946
85.000
90.000
90.035
85.020
85.155
0.020
0.209
BK-1W 8540 85 39.50
40.50
BK-1W 8560 85 59.50
60.50
BK-1W 8580 85 79.50
80.50
BK-1W 85100 85 99.50
100.50
BK-1W 9040 90 95 2.440
2.490
39.50
40.50
89.946
90.000
95.000
95.035
90.020
90.155
0.020
0.209
BK-1W 9060 90 59.50
60.50
BK-1W 90100 90 99.50
100.50
BK-1W 9560 95 100 2.440
2.490
59.50
60.50
94.946
95.000
105.000
100.035
100.020
100.155
0.020
0.209
BK-1W 95100 95 99.50
100.50
BK-1W 10050 100 105 2.440
2.490
49.50
50.50
99.946
100.000
105.000
105.035
100.020
100.155
0.020
0.209
BK-1W 10060 100 59.50
60.50
BK-1W 100100 100 99.50
100.50
BK-1W 100115 100 114.50
115.50
BK-1W 10560 105 110 2.440
2.490
59.50
60.50
104.946
105.000
110.000
110.035
105.020
105.155
0.020
0.209
BK-1W 105100 105 99.50
100.50
BK-1W 105115 105 114.50
115.50
BK-1W 11060 110 115 2.440
2.490
59.50
60.50
109.946
110.000
115.000
115.035
110.020
110.155
0.020
0.209
BK-1W 110100 110 99.50
100.50
BK-1W 110115 110 114.50
115.50
BK-1W 11550 115 120 2.415
2.465
49.50
50.50
114.946
115.000
120.000
120.035
115.020
115.155
0.020
0.209
BK-1W 11560 115 59.50
60.50
BK-1W 11570 115 69.50
70.50
BK-1W 115100 115 99.50
100.50
BK-1W 12050 120 125 2.415
2.465
49.50
50.50
119.946
120.000
125.000
125.040
120.070
120.210
0.070
0.264
BK-1W 12060 120 59.50
60.50
BK-1W 120100 120 99.50
100.50
BK-1W 12560 125 130 2.415
2.465
59.50
60.50
124.937
125.000
130.000
130.040
125.070
125.210
0.070
0.273
BK-1W 125100 125 99.50
100.50
BK-1W 13060 130 135 2.415
2.465
59.50
60.50
129.937
130.000
135.000
135.040
130.070
130.210
0.070
0.273
BK-1W 130100 130 99.50
100.50
BK-1W 13560 135 140 2.415
2.465
59.50
60.50
134.937
135.000
140.000
140.040
135.070
135.210
0.070
0.273
BK-1W 13580 135 79.50
80.50
BK-1W 135100 135 99.50
100.50
BK-1W 14060 140 145 2.415
2.465
59.50
60.50
139.937
140.000
145.000
145.040
140.070
140.210
0.070
0.273
BK-1W 140100 140 99.50
100.50
BK-1W 15060 150 155 2.415
2.465
59.50
60.50
149.937
150.000
155.000
155.040
150.070
150.210
0.070
0.273
BK-1W 15080 150 79.50
80.50
BK-1W 150100 150 99.50
100.50
BK-1W 16060 160 165 2.415
2.465
59.50
60.50
159.937
160.000
165.000
165.040
160.070
160.210
0.070
0.273
BK-1W 16080 160 79.50
80.50
BK-1W 160100 160 99.50
100.50
BK-1W 170100 170 175 2.415
2.465
99.50
100.50
169.937
170.000
175.000
175.040
170.070
170.210
0.070
0.273
BK-1W 180100 180 185 2.415
2.465
99.50
100.50
179.937
180.000
185.000
185.046
180.070
180.216
0.070
0.279
BK-1W 200100 200 205 2.415
2.465
99.50
100.50
199.928
200.000
205.000
205.046
200.070
200.216
0.070
0.288
BK-1W 210100 210 215 2.415
2.465
99.50
100.50
209.928
210.000
215.000
215.046
210.070
210.216
0.070
0.288
BK-1W 220100 220 225 2.415
2.465
99.50
100.50
219.928
220.000
225.000
225.046
220.070
220.216
0.070
0.288
BK-1W 250100 250 255 2.415
2.465
99.50
100.50
249.928
250.000
255.000
255.052
250.070
250.222
0.070
0.294
BK-1W 300100 300 305 2.415
2.465
99.50
100.50
299.919
300.000
305.000
305.052
300.070
300.222
0.070
0.303