Miniature Extended Bearings

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
(OIL)
(X1000
RPM)
RW0 Open 0.0469" | 1.191mm 0.1562" | 3.967mm 0.0625" | 1.588mm 21 6 130
RW0zz Shielded 0.0469" | 1.191mm 0.1562" | 3.967mm 0.0937" | 2.380mm 21 6 130
RW1 Open 0.055" | 1.397mm 0.1875" | 4.763mm 0.0781" | 1.984mm 44 12 110
RW1zz Shielded 0.055" | 1.397mm 0.1875" | 4.763mm 0.1094" | 2.779mm 44 12 110
RW1-4 Open 0.0781" | 1.984mm 0.25" | 6.350mm 0.0937" | 2.380mm 54 17 80
RW1-4zz Shielded 0.0781" | 1.984mm 0.25" | 6.350mm 0.1406" | 3.571mm 54 17 80
RW1-5 Open 0.0937" | 2.380mm 0.3125" | 7.938mm 0.1094" | 2.779mm 106 32 71
RW1-5zz Shielded 0.0937" | 2.380mm 0.3125" | 7.938mm 0.1406" | 3.571mm 106 32 71
RW133 Open 0.0937" | 2.380mm 0.1875" | 4.763mm 0.0625" | 1.588mm 28 10 95
RW133zz Shielded 0.0937" | 2.380mm 0.1875" | 4.763mm 0.0937" | 2.380mm 28 10 95
RW144 Open 0.125" | 3.175mm 0.25" | 6.350mm 0.0937" | 2.380mm 54 17 80
RW144zz Shielded 0.125" | 3.175mm 0.25" | 6.350mm 0.1094" | 2.779mm 54 17 80
RW2 Open 0.125" | 3.175mm 0.375" | 9.525mm 0.1562" | 3.967mm 121 39 67
RW2-5 Open 0.125" | 3.175mm 0.3125" | 7.938mm 0.1094" | 2.779mm 107 32 67
RW2-5zz Shielded 0.125" | 3.175mm 0.3125" | 7.938mm 0.1406" | 3.571mm 107 32 67
RW2-6 Open 0.125" | 3.175mm 0.375" | 9.525mm 0.1094" | 2.779mm 122 41 63
RW2-6zz Shielded 0.125" | 3.175mm 0.375" | 9.525mm 0.1406" | 3.571mm 122 41 63
RW2zz Shielded 0.125" | 3.175mm 0.375" | 9.525mm 0.1562" | 3.967mm 121 39 67
RW155 Open 0.1562" | 3.967mm 0.3125" | 7.938mm 0.1094" | 2.779mm 69 27 63
RW155zz Shielded 0.1562" | 3.967mm 0.3125" | 7.938mm 0.125" | 3.175mm 69 27 63
RW156 Open 0.1875" | 4.763mm 0.3125" | 7.938mm 0.1094" | 2.779mm 69 27 63
RW156zz Shielded 0.1875" | 4.763mm 0.3125" | 7.938mm 0.125" | 3.175mm 69 27 63
RW166 Open 0.1875" | 4.763mm 0.375" | 9.525mm 0.125" | 3.175mm 136 49 60
RW166zz Shielded 0.1875" | 4.763mm 0.375" | 9.525mm 0.125" | 3.175mm 136 49 60
RW3 Open 0.1875" | 4.763mm 0.5 " | 12.700mm 0.1562" | 3.967mm 249 88 53
RW3ZZ Shielded 0.1875" | 4.763mm 0.5" | 12.700mm 0.196" | 4.978mm 249 88 11
RW168 Open 0.25" | 6.350mm 0.375" | 9.525mm 0.125" | 3.175mm 71 31 56
RW168zz Shielded 0.25" | 6.350mm 0.375" | 9.525mm 0.125" | 3.175mm 71 31 56
RW188 Open 0.25" | 6.350mm 0.5" | 12.700mm 0.125" | 3.175mm 207 80 50
RW188zz Shielded 0.25" | 6.350mm 0.5" | 12.700mm 0.1875" | 4.763mm 207 80 50
RW4 Open 0.25" | 6.350mm 0.625" | 15.875mm 0.196" | 4.978mm 283 112 45
RW4zz Shielded 0.25" | 6.350mm 0.625" | 15.875mm 0.196" | 4.978mm 283 112 45
RW1810 Open 0.3125" | 7.938mm 0.5" | 12.700mm 0.1562" | 3.967mm 104 50 48
RW1810zz Shielded 0.3125" | 7.938mm 0.5" | 12.700mm 0.1562" | 3.967mm 104 50 48

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