63 models in the 39 series, 25–200 mm bore. Every row links to the full specification page and to the cross-reference page of that model.
| Model | Brand | Bore d (mm) | OD D (mm) | Width B (mm) | |
|---|---|---|---|---|---|
| 3958 - 3920 | TIMKEN | — | |||
| 3958 - 3925 | TIMKEN | — | |||
| 3958 - 3926 | TIMKEN | — | |||
| 3960 - 3920 | TIMKEN | — | |||
| 3960 - 3925 | TIMKEN | — | |||
| 3960 - 3926 | TIMKEN | — | |||
| 3977 - 3920-B | TIMKEN | — | |||
| 3980 - 3926 | TIMKEN | — | |||
| 3982 - 3920 | TIMKEN | Cross-ref → | |||
| 3982 - 3925 | TIMKEN | — | |||
| 3982 - 3926 | TIMKEN | — | |||
| 3984 - 3920 | TIMKEN | Cross-ref → | |||
| 3984 - 3920-B | TIMKEN | — | |||
| 3984 - 3925 | TIMKEN | — | |||
| 3992 - 3920 | TIMKEN | — | |||
| 3992 - 3925 | TIMKEN | — | |||
| 3992 - 3926 | TIMKEN | — | |||
| 3905 | NACHI | 25 | 52 | 16 | Cross-ref → |
| 3906 | INA | 29.997 | 60 | 19 | Cross-ref → |
| 3906 | NACHI | 30 | 60 | 19 | Cross-ref → |
| 3907 | NACHI | 35 | 68 | 22 | Cross-ref → |
| 3907 | INA | 35.001 | 68 | 23 | Cross-ref → |
| 39R4717 | KOYO | 39 | 47 | 17 | — |
| 3908 | NACHI | 40 | 76 | 25 | — |
| 3909 | NACHI | 45 | 85 | 28 | Cross-ref → |
| 3909 | INA | 45.009 | 85 | 28 | Cross-ref → |
| 3910 | NACHI | 50 | 92 | 31 | Cross-ref → |
| 3910 | INA | 50.013 | 92 | 31 | Cross-ref → |
| 3911 | INA | 54.991 | 100 | 33 | Cross-ref → |
| 3911 | NACHI | 55 | 100 | 33 | Cross-ref → |
| 3979/20 | KOYO | 57.15 | 112.712 | 30.048 | — |
| 3979/3920-B | TIMKEN | 57.15 | 112.776 | 11.113 | — |
| 3978/3920 | TIMKEN | 59.53 | 112.712 | 30.175 | — |
| 3977X/3920 | TIMKEN | 59.987 | 112.712 | 30.175 | — |
| 3912 | INA | 59.995 | 106 | 35 | Cross-ref → |
| 3977/3925 | TIMKEN | 60 | 112.712 | 30.175 | — |
| 3912 | NACHI | 60 | 106 | 35 | Cross-ref → |
| 3980/3920 | TIMKEN | 60.325 | 112.712 | 30.175 | Cross-ref → |
| 3980/3925 | TIMKEN | 60.325 | 112.712 | 30.175 | — |
| 3980/3920 | NACHI | 60.325 | 112.713 | 30.163 | Cross-ref → |
| 3980/3920-B | TIMKEN | 60.325 | 112.776 | 11.113 | — |
| 3982/3920 | NACHI | 63.5 | 112.713 | 30.163 | Cross-ref → |
| 3913 | INA | 64.999 | 112 | 36 | Cross-ref → |
| 3913 | NACHI | 65 | 112 | 36 | Cross-ref → |
| 3984/25 | KOYO | 66.675 | 112.712 | 30.048 | — |
| 3984/3920B | ANDGE | 66.675 | 112.712 | — | |
| 3984/3926 | TIMKEN | 66.675 | 112.712 | 33.35 | Cross-ref → |
| 3984/3920 | NACHI | 66.675 | 112.713 | 30.163 | Cross-ref → |
| 3994/3920 | NACHI | 66.675 | 112.713 | 30.163 | Cross-ref → |
| 3914 | NACHI | 70 | 120 | 38 | — |
| 3915 | NACHI | 75 | 128 | 41 | Cross-ref → |
| 3915 | INA | 75.006 | 128 | 41 | Cross-ref → |
| 3916 | NACHI | 80 | 136 | 44 | Cross-ref → |
| 3916 | INA | 80.01 | 136 | 44 | Cross-ref → |
| 3917 | NACHI | 85 | 145 | 47 | — |
| 3918 | NACHI | 90 | 155 | 50 | — |
| 3919 | NACHI | 95 | 165 | 54 | — |
| 3920 | NACHI | 100 | 172 | 57 | Cross-ref → |
| 3921 | NACHI | 105 | 180 | 60 | — |
| 3922 | NACHI | 110 | 190 | 63 | — |
| 3923 | NACHI | 115 | 200 | 66 | — |
| 3924 | NACHI | 120 | 210 | 69 | — |
| 3940X3D/W33 | ANDGE | 200 | 279.5 | 76 | — |
39 series bearings follow the ISO dimension plan for this family, so a given number is dimensionally interchangeable between brands - see the cross-reference to confirm. Choose the suffix for your duty: shields for dry, clean positions, contact seals for wet or dusty ones, and a larger clearance class where the fit or temperature demands it.
Other Custom & Special Bearings series: 62 · 685 · 63 · 60 · SNV · K · BND · 697