Flange Extended Inner Ring Ball Bearings is also called Flange Wide inner ring bearings, they mean the width of inner ring is higher than the width of outer ring, they are designed for special applications. Runstar Bearing has a full dimention of Stainless steel Flange Extended Inner Ring Ball Bearings for choice, the precision tolerance is from ABEC-1 to ABEC 9 for choice, there are 440(9Cr18),420(9Cr13) for choice in Runstar, 316 is sometimes available. Custom-made products is accepted in Runstar. All Runstar’s Bearings are strictly controlled under ISO9001:2015.

PART NUMBERSEAL TYPEBore diameter(d)Outer diameter(D)Width(B)BALL SIZE(mm)BALL QTYweight(g)
SFR0 EEopen3/64"︱1.191mm5/32"︱3.969mm0.0625"︱1.588mm0.670.1
SFR0ZZ EEShields3/64"︱1.191mm5/32"︱3.969mm3/32"︱2.381mm0.670.15
SFR1 EEopen1/18"︱1.411mm3/16"︱4.762mm0.0781"︱1.984mm160.15
SFR1ZZ EEShields1/18"︱1.411mm3/16"︱4.762mm0.1094"︱2.779mm160.19
SFR1-4 EEopen5/64"︱1.984mm1/4"︱6.35mm3/32"︱2.381mm170.4
SFR1-4ZZ EEShields5/64"︱1.984mm1/4"︱6.35mm0.1406"︱3.571mm170.53
SFR1-4 2RS EERubber seal5/64"︱1.984mm1/4"︱6.35mm0.1406"︱3.571mm170.53
SFR1-5 EEopen3/32"︱2.381mm5/16"︱7.938mm0.1094"︱2.779mm1.58860.6
SFR1-5ZZ EEShields3/32"︱2.381mm5/16"︱7.938mm0.1406"︱3.571mm1.58861.15
SFR1-5 2RS EERubber seal3/32"︱2.381mm5/16"︱7.938mm0.1406"︱3.571mm1.58861.15
SFR133 EEopen3/32"︱2.381mm3/16"︱4.762mm0.0625"︱1.588mm0.870.1
SFR133ZZ EEShields3/32"︱2.381mm3/16"︱4.762mm3/32"︱2.381mm0.870.15
SFR133-2RS EERubber seal3/32"︱2.381mm3/16"︱4.762mm3/32"︱2.381mm0.870.15
SFR144 EEopen1/8"︱3.175mm1/4"︱6.35mm3/32"︱2.381mm170.27
SFR144ZZ EEShields1/8"︱3.175mm1/4"︱6.35mm0.1094"︱2.779mm170.4
SFR144-2RS EERubber seal1/8"︱3.175mm1/4"︱6.35mm0.1094"︱2.779mm170.4
SFR2 EEopen1/8"︱3.175mm3/8"︱9.525mm5/32"︱3.969mm1.58871.04
SFR2ZZ EEShields1/8"︱3.175mm3/8"︱9.525mm5/32"︱3.969mm1.58871.37
SFR2-2RS EERubber seal1/8"︱3.175mm3/8"︱9.525mm5/32"︱3.969mm1.58871.37
SFR2-5 EEopen1/8"︱3.175mm5/16"︱7.938mm0.1094"︱2.779mm1.58860.5
SFR2-5ZZ EEShields1/8"︱3.175mm5/16"︱7.938mm0.1406"︱3.571mm1.58860.74
SFR2-5-2RS EERubber seal1/8"︱3.175mm5/16"︱7.938mm0.1406"︱3.571mm1.58860.74
SFR2-6 EEopen1/8"︱3.175mm3/8"︱9.525mm0.1094"︱2.779mm1.58870.96
SFR2-6ZZ EEShields1/8"︱3.175mm3/8"︱9.525mm0.1406"︱3.571mm1.58871.23
SFR2-6-2RS EERubber seal1/8"︱3.175mm3/8"︱9.525mm0.1406"︱3.571mm1.58871.23
SFR155 EEopen5/32"︱3.969mm5/16"︱7.938mm0.1094"︱2.779mm1100.51
SFR155ZZ EEShields5/32"︱3.969mm5/16"︱7.938mm1/8"︱3.175mm1100.61
SFR155-2RS EERubber seal5/32"︱3.969mm5/16"︱7.938mm1/8"︱3.175mm1100.61
SFR156 EEopen3/16"︱4.762mm5/16"︱7.938mm0.1094"︱2.779mm1100.4
SFR156ZZ EEShields3/16"︱4.762mm5/16"︱7.938mm1/8"︱3.175mm110
SFR156-2RS EERubber seal3/16"︱4.762mm5/16"︱7.938mm1/8"︱3.175mm110
SFR166 EEopen3/16"︱4.762mm3/8"︱9.525mm1/8"︱3.175mm1.58880.81
SFR166ZZ EEShields3/16"︱4.762mm3/8"︱9.525mm1/8"︱3.175mm1.58880.85
SFR166-2RS EERubber seal3/16"︱4.762mm3/8"︱9.525mm1/8"︱3.175mm1.58880.85
SFR3 EEopen3/16"︱4.762mm1/2"︱12.7mm5/32"︱3.969mm2.38172.21
SFR3ZZ EEShields3/16"︱4.762mm1/2"︱12.7mm0.1960"︱4.978mm2.3817
SFR3-2RS EERubber seal3/16"︱4.762mm1/2"︱12.7mm0.1960"︱4.978mm2.3817
SFR168 EEopen1/4"︱6.35mm3/8"︱9.525mm1/8"︱3.175mm1110.57
SFR168ZZ EEShields1/4"︱6.35mm3/8"︱9.525mm1/8"︱3.175mm1110.6
SFR168-2RS EERubber seal1/4"︱6.35mm3/8"︱9.525mm1/8"︱3.175mm1110.6
SFR188 EEopen1/4"︱6.35mm1/2"︱12.7mm1/8"︱3.175mm281.6
SFR188ZZ EEShields1/4"︱6.35mm1/2"︱12.7mm3/16"︱4.762mm282.32
SFR188-2RS EERubber seal1/4"︱6.35mm1/2"︱12.7mm3/16"︱4.762mm282.32
SFR4 EEopen1/4"︱6.35mm5/8"︱15.875mm0.1960"︱4.978mm2.38184.46
SFR4ZZ EEShields1/4"︱6.35mm5/8"︱15.875mm0.1960"︱4.978mm2.38184.54
SFR4-2RS EERubber seal1/4"︱6.35mm5/8"︱15.875mm0.1960"︱4.978mm2.38184.54
SFR1810 EEopen5/16"︱7.938mm1/2"︱12.7mm5/32"︱3.969mm1.2121.39
SFR1810ZZ EEShields5/16"︱7.938mm1/2"︱12.7mm5/32"︱3.969mm1.2121.57
SFR1810-2RS EERubber seal5/16"︱7.938mm1/2"︱12.7mm5/32"︱3.969mm1.2121.57
SFR6EEopen3/8"︱9.525mm7/8"︱22.2250.2188"︱5.558mm3.9779.02
SFR6ZZ EEShields3/8"︱9.525mm7/8"︱22.2250.2812"︱7.142mm3.97711.7
SFR6-2RS EERubber seal3/8"︱9.525mm7/8"︱22.2250.2812"︱7.142mm3.97711.7