Miniature Flanged Extended BearingsPart Interchange

Open

Shielded

Open bearings dissipate heat more efficiently than shielded and sealed bearings.

Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.

Product
Number
Seal
Type
Bore Dia (d) Outer Dia (D) Width (B) Dynamic
Load
Rating
(Cr) (N)
Static
Load
Rating
(Cor) (N)
MAX
SPEED
(GREASE)
(X1000
RPM)
FRW0 Open 0.0469" | 1.191 mm 0.1562" | 3.967 mm 0.0625" | 1.588 mm 21 6 110
FRW0zz Shielded 0.0469" | 1.191 mm 0.1562" | 3.967 mm 0.0937" | 2.380 mm 21 6 110
FRW1 Open 0.055" | 1.397 mm 0.1875" | 4.763 mm 0.0781" | 1.984 mm 44 12 90
FRW1zz Shielded 0.055" | 1.397 mm 0.1875" | 4.763 mm 0.1094" | 2.779 mm 44 12 90
FRW1-4 Open 0.0781" | 1.984 mm 0.25" | 6.350 mm 0.0937" | 2.380 mm 21 6 110
FRW1-4zz Shielded 0.0781" | 1.984 mm 0.25" | 6.350 mm 0.1406" | 3.571 mm 21 6 110
FRW133 Open 0.0937" | 2.380 mm 0.1875" | 4.763 mm 0.0625" | 1.588 mm 28 10 80
FRW133zz Shielded 0.0937" | 2.380 mm 0.1875" | 4.763 mm 0.0937" | 2.380 mm 28 10 80
FRW1-5 Open 0.0937" | 2.380 mm 0.3125" | 7.938 mm 0.1094" | 2.779 mm 21 6 110
FRW1-5zz Shielded 0.0937" | 2.380 mm 0.3125" | 7.938 mm 0.1406" | 3.571 mm 21 6 110
FRW144 Open 0.125" | 3.175 mm 0.25" | 6.350 mm 0.0937" | 2.380 mm 54 17 67
FRW144zz Shielded 0.125" | 3.175 mm 0.25" | 6.350 mm 0.1094" | 2.779 mm 54 17 67
FRW2-5 Open 0.125" | 3.175 mm 0.3125" | 7.938 mm 0.1094" | 2.779 mm 21 6 110
FRW2-5zz Shielded 0.125" | 3.175 mm 0.3125" | 7.938 mm 0.1406" | 3.571 mm 21 6 110
FRW2-6 Open 0.125" | 3.175 mm 0.375" | 9.525 mm 0.1094" | 2.779 mm 122 41 53
FRW2-6zz Shielded 0.125" | 3.175 mm 0.375" | 9.525 mm 0.1406" | 3.571 mm 122 41 53
FRW2 Open 0.125" | 3.175 mm 0.375" | 9.525 mm 0.1562" | 3.967 mm 21 6 110
FRW2zz Shielded 0.125" | 3.175 mm 0.375" | 9.525 mm 0.1562" | 3.967 mm 21 6 110
FRW155 Open 0.1562" | 3.967 mm 0.3125" | 7.938 mm 0.1094" | 2.779 mm 69 27 53
FRW155zz Shielded 0.1562" | 3.967 mm 0.3125" | 7.938 mm 0.125" | 3.175 mm 69 27 53
FRW156 Open 0.1875" | 4.763 mm 0.3125" | 7.938 mm 0.1094" | 2.779 mm 21 6 110
FRW156zz Shielded 0.1875" | 4.763 mm 0.3125" | 7.938 mm 0.125" | 3.175 mm 21 6 110
FRW166 Open 0.1875" | 4.763 mm 0.375" | 9.525 mm 0.125" | 3.175 mm 136 49 50
FRW166zz Shielded 0.1875" | 4.763 mm 0.375" | 9.525 mm 0.125" | 3.175 mm 136 49 50
FRW3 Open 0.1875" | 4.763 mm 0.5" | 12.700 mm 0.1562" | 3.967 mm 21 6 110
FRW3zz Shielded 0.1875" | 4.763 mm 0.5" | 12.700 mm 0.196" | 4.978 mm 21 6 110
FRW3 W19 Open 0.1875" | 4.763 mm 0.5" | 12.700 mm 0.2273" | 5.773 mm 249 88 43
FRW168 Open 0.25" | 6.350 mm 0.375" | 9.525 mm 0.125" | 3.175 mm 71 31 48
FRW168zz Shielded 0.25" | 6.350 mm 0.375" | 9.525 mm 0.125" | 3.175 mm 71 31 48
FRW188 Open 0.25" | 6.350 mm 0.5" | 12.700 mm 0.125" | 3.175 mm 71 31 48
FRW188zz Shielded 0.25" | 6.350 mm 0.5" | 12.700 mm 0.1875" | 4.763 mm 71 31 48
FRW4 Open 0.25" | 6.350 mm 0.625" | 15.875 mm 0.196" | 4.978 mm 21 6 110
FRW4zz Shielded 0.25" | 6.350 mm 0.625" | 15.875 mm 0.196" | 4.978 mm 21 6 110
FRW1810zz Shielded 0.3125" | 7.938 mm 0.5" | 12.700 mm 0.1562" | 3.967 mm 104 50 40

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