27 models in the FLRA series, 1.984–6.35 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) | |
|---|---|---|---|---|---|
| FLRA1-4ZA | NTN | 1.984 | 6.35 | 2.38 | — |
| FLRA1-4ZZA | NTN | 1.984 | 6.35 | 2.38 | — |
| FLRA133ZA | NTN | 2.38 | 4.762 | 1.588 | — |
| FLRA133ZZA | NTN | 2.38 | 4.762 | 1.588 | — |
| FLRA1-5ZA | NTN | 2.38 | 7.938 | 2.779 | — |
| FLRA1-5ZZA | NTN | 2.38 | 7.938 | 2.779 | — |
| FLRA144ZA | NTN | 3.175 | 6.35 | 2.38 | — |
| FLRA144ZZA | NTN | 3.175 | 6.35 | 2.38 | — |
| FLRA2-5Z | NTN | 3.175 | 7.938 | 2.779 | — |
| FLRA2-5ZZ | NTN | 3.175 | 7.938 | 2.779 | — |
| FLRA2-6ZA | NTN | 3.175 | 9.525 | 2.779 | — |
| FLRA2-6ZZA | NTN | 3.175 | 9.525 | 2.779 | — |
| FLRA2ZA | NTN | 3.175 | 9.525 | 3.967 | — |
| FLRA2ZZA | NTN | 3.175 | 9.525 | 3.967 | — |
| FLRA155ZA | NTN | 3.967 | 7.938 | 2.779 | — |
| FLRA155ZZA | NTN | 3.967 | 7.938 | 2.779 | — |
| FLRA156Z | NTN | 4.762 | 7.938 | 2.779 | — |
| FLRA156ZZ | NTN | 4.762 | 7.938 | 2.779 | — |
| FLRA166Z | NTN | 4.762 | 9.525 | 3.175 | — |
| FLRA166ZZ | NTN | 4.762 | 9.525 | 3.175 | — |
| FLRA3 | NTN | 4.762 | 12.7 | 4.978 | — |
| FLRA3Z | NTN | 4.762 | 12.7 | 4.978 | — |
| FLRA3ZZ | NTN | 4.762 | 12.7 | 4.978 | — |
| FLRA168AZ | NTN | 6.35 | 9.525 | 3.175 | — |
| FLRA168AZZ | NTN | 6.35 | 9.525 | 3.175 | — |
| FLRA188ZA | NTN | 6.35 | 12.7 | 3.175 | — |
| FLRA188ZZA | NTN | 6.35 | 12.7 | 3.175 | — |
FLRA 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 Ball Bearing Units series: E · NAU · LSE · UC · SNV · MSE · SD · SNT