Bowman offers needle rollers in a range of sizes and materials, including high carbon chrome steel (52100) and stainless steel (316/304/400C)
|
Hardness |
RC58/62 for 52100 RC20/30 for 316/304 RC58/62 for 440C |
|
Surface finish |
Ra < = 0.16um |
| DIAMETER | LENGTH |
|---|---|
|
1mm |
2.8mm |
|
3.8mm |
|
|
4.8mm |
|
|
5.8mm |
|
|
6.8mm |
|
|
1.5mm |
4.8mm |
|
5.8mm |
|
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8 mm |
|
|
11.8 mm |
|
|
12.8 mm |
|
|
13.8 mm |
|
|
14.8 mm |
|
|
1.7mm |
10.8 mm |
|
11.8 mm |
|
|
12.8 mm |
|
|
13.8 mm |
|
|
14.8 mm |
|
|
2mm |
4.8mm |
|
5.8mm |
|
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8 mm |
|
|
11.8 mm |
|
|
12.8 mm |
|
|
13.8 mm |
|
|
14.8 mm |
|
|
2.5mm |
4.8mm |
|
5.8mm |
|
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8mm |
|
|
11.8mm |
|
|
12.8mm |
|
|
13.8mm |
|
|
14.8mm |
|
|
15.8mm |
|
|
16.8mm |
|
|
17.8mm |
|
|
18.8mm |
|
|
19.8mm |
|
|
20.8mm |
|
|
21.8mm |
|
|
22.8mm |
|
|
23.8mm |
|
|
24.8mm |
|
|
3mm |
4.8mm |
|
5.8mm |
|
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8mm |
|
|
11.8mm |
|
|
12.8mm |
|
|
13.8mm |
|
|
14.8mm |
|
|
15.8mm |
|
|
16.8mm |
|
|
17.8mm |
|
|
18.8mm |
|
|
19.8mm |
|
|
20.8mm |
|
|
21.8mm |
|
|
22.8mm |
|
|
23.8mm |
|
|
24.8mm |
|
|
3.5mm |
5.8mm |
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8mm |
|
|
11.8mm |
|
|
12.8mm |
|
|
13.8mm |
|
|
14.8mm |
|
|
15.8mm |
|
|
16.8mm |
|
|
17.8mm |
|
|
18.8mm |
|
|
19.8mm |
|
|
20.8mm |
|
|
21.8mm |
|
|
22.8mm |
|
|
23.8mm |
|
|
24.8mm |
|
|
25.8mm |
|
|
4mm |
4.8mm |
|
5.8mm |
|
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8mm |
|
|
11.8mm |
|
|
12.8mm |
|
|
13.8mm |
|
|
14.8mm |
|
|
15.8mm |
|
|
16.8mm |
|
|
17.8mm |
|
|
18.8mm |
|
|
19.8mm |
|
|
20.8mm |
|
|
21.8mm |
|
|
22.8mm |
|
|
23.8mm |
|
|
24.8mm |
|
|
26.8mm |
|
|
27.8mm |
|
|
28.8mm |
|
|
29.8mm |
|
|
4.5mm |
5.8mm |
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8mm |
|
|
11.8mm |
|
|
12.8mm |
|
|
13.8mm |
|
|
14.8mm |
|
|
15.8mm |
|
|
16.8mm |
|
|
17.8mm |
|
|
18.8mm |
|
|
19.8mm |
|
|
20.8mm |
|
|
21.8mm |
|
|
22.8mm |
|
|
23.8mm |
|
|
24.8mm |
|
|
26.8mm |
|
|
27.8mm |
|
|
28.8mm |
|
|
29.8mm |
|
|
5mm |
5.8mm |
|
6.8mm |
|
|
7.8mm |
|
|
8.8mm |
|
|
9.8mm |
|
|
10.8mm |
|
|
11.8mm |
|
|
12.8mm |
|
|
13.8mm |
|
|
14.8mm |
|
|
15.8mm |
|
|
16.8mm |
|
|
17.8mm |
|
|
18.8mm |
|
|
19.8mm |
|
|
20.8mm |
|
|
21.8mm |
|
|
22.8mm |
|
|
23.8mm |
|
|
24.8mm |
|
|
26.8mm |
|
|
27.8mm |
|
|
28.8mm |
|
|
29.8mm |
|
|
5.5mm |
7mm |
|
13.8mm |
|
|
17mm |
|
|
18.8mm |
|
|
26.8mm |
|
|
33.8mm |
|
|
35.8mm |
|
|
5.7mm |
16.6mm |
|
6mm |
6mm |
|
8mm |
|
|
9mm |
|
|
10mm |
|
|
11mm |
|
|
12mm |
|
|
13mm |
|
|
16mm |
|
|
17.8mm |
|
|
19.8mm |
|
|
21mm |
|
|
23.8mm |
|
|
25.8mm |
|
|
26.2mm |
|
|
29.8mm |
|
|
6.04mm |
9.4mm |
|
6.193mm |
23.75mm |
|
6.32mm |
12.7mm |
|
6.33mm |
25.14 |
|
6.35mm |
6.35mm |
|
7.2mm |
|
|
10.7mm |
|
|
20.8mm |
|
|
6.5mm |
6.5mm |
|
7mm |
|
|
9mm |
|
|
10mm |
|
|
18mm |
|
|
20.8mm |
|
|
27.8mm |
|
|
31.8mm |
|
|
33.8mm |
|
|
37.8mm |
|
|
39.8mm |
|
|
6.9mm |
11.3mm |
|
7mm |
7mm |
|
8mm |
|
|
9mm |
|
|
10mm |
|
|
11mm |
|
|
14mm |
|
|
16mm |
|
|
18mm |
|
|
20mm |
|
|
29.8mm |
|
|
35.8mm |
|
|
37.8mm |
|
|
38mm |
|
|
7.071mm |
30mm |
|
40mm |
|
|
7.5mm |
7.5mm |
|
8mm |
|
|
9mm |
|
|
10.5mm |
|
|
12mm |
|
|
15.5mm |
|
|
20mm |
|
|
29.8mm |
|
|
34.8mm |
|
|
39.8mm |
|
|
7.92mm |
14.4mm |
|
14.5mm |
|
|
7.938mm |
25mm |
|
7.99mm |
13mm |
|
8mm |
8mm |
|
9mm |
|
|
12mm |
|
|
13mm |
|
|
16.5mm |
|
|
17.3mm |
|
|
22mm |
|
|
40mm |
|
|
8.035mm |
15mm |
|
8.5mm |
21mm |
|
21.75mm |
|
|
8.74mm |
17.3mm |
|
8.8mm |
12.7mm |
|
9mm |
10mm |
|
14mm |
|
|
24.5mm |
|
|
34.8mm |
|
|
9.23mm |
13.5mm |
|
9.5mm |
16.2mm |
|
9.75mm |
13.4mm |
|
9.85mm |
11.5mm |
|
9.86mm |
20mm |
|
9.525mm |
13.6mm |
|
10mm |
10mm |
|
11mm |
|
|
12mm |
|
|
14mm |
|
|
15mm |
|
|
16mm |
|
|
17mm |
|
|
18mm |
|
|
20mm |
|
|
30mm |
|
|
41.8mm |
|
|
47.8mm |
|
|
49.8mm |
|
|
59.8mm |
|
|
10.2mm |
9.5mm |
|
11mm |
11mm |
|
12mm |
|
|
15mm |
|
|
18mm |
|
|
10.312mm |
50mm |
|
12mm |
12mm |
|
13mm |
|
|
14mm |
|
|
16mm |
|
|
21mm |
|
|
22mm |
|
|
25mm |
|
|
28mm |
|
|
12.7mm |
14mm |
|
47mm |
|
|
13mm |
15mm |
|
13.39mm |
25mm |
|
14mm |
15mm |
|
16mm |
|
|
20mm |
|
|
22mm |
|
|
14.3mm |
31mm |
|
15mm |
15mm |
|
16mm |
|
|
22mm |
|
|
24mm |
|
|
39mm |
|
|
16mm |
17mm |
|
24mm |
|
|
27mm |
|
|
55mm |
|
|
18mm |
19mm |
|
32mm |
|
|
18.82mm |
22mm |
|
19mm |
20mm |
|
28mm |
