| ITEM | R8ZZ |
| bore diameter(d) | 1/2" 12.7MM |
| outside diameter(D) | 28.575mm |
| Width(B) | 7.938mm |
| TYPE | ZZ OR RS |
| MATERIAL | Gcr15 or 9Cr18 |
| GREASE | |
| MEMO |
| shape Dimension | Ball Complement | ||||||
| Type | Bore Diameter (d) | Outer Diameter (D) | Width for open type(B) | Width for shield type(B1) | Radius rs(min) | size | Qty |
| mm | mm | mm | mm | mm | mm | 6 | |
| R1-4zz | 1.984 | 6.350 | 2.380 | 3.571 | 0.10 | 1.000 | 7 |
| R133zz | 2.380 | 4.762 | 1.588 | 2.380 | 0.10 | 0.800 | 7 |
| R1-5zz | 2.380 | 7.938 | 2.779 | 3.571 | 0.15 | 1.588 | 6 |
| R144Jzzs | 3.175 | 6.350 | 2.380 | 2.779 | 0.10 | 1.000 | 8 |
| R2-5zz | 3.175 | 7.938 | 2.779 | 3.571 | 0.10 | 1.588 | 6 |
| R2-6zz | 3.175 | 9.525 | 2.779 | 3.571 | 0.15 | 1.588 | 7 |
| R2zz | 3.175 | 9.525 | 3.967 | 3.967 | 0.30 | 1.588 | 7 |
| R2Azz | 3.175 | 12.700 | 4.366 | 4.366 | 0.30 | 1.588 | 7 |
| R155zzs | 3.967 | 7.938 | 2.779 | 3.175 | 0.10 | 1.000 | 10 |
| R156zzs | 4.762 | 7.938 | 2.779 | 3.175 | 0.10 | 1.000 | 10 |
| R166zzs | 4.762 | 9.525 | 3.175 | 3.175 | 0.10 | 1.588 | 8 |
| R3zz | 4.762 | 12.700 | 3.967 | 4.978 | 0.30 | 2.381 | 7 |
| R3Azz | 4.762 | 15.875 | 4.978 | 4.978 | 0.30 | 2.381 | 8 |
| R168zzs | 6.350 | 9.525 | 3.175 | 3.175 | 0.10 | 1.000 | 11 |
| R188zz | 6.350 | 12.700 | 3.175 | 4.762 | 0.15 | 2.000 | 8 |
| R4zz | 6.350 | 15.875 | 4.978 | 4.978 | 0.30 | 2.381 | 8 |
| R4Azz | 6.350 | 19.050 | 5.558 | 7.142 | 0.40 | 3.500 | 6 |
| R1810zzs | 7.938 | 12.700 | 3.967 | 3.967 | 0.15 | 1.200 | 12 |
| R6zz | 9.525 | 22.225 | 5.558 | 7.142 | 0.40 | 3.969 | 7 |
| R1038zz | 9.525 | 15.875 | 3.967 | 3.967 | 0.15 | ||
| R1212zz | 12.700 | 19.050 | 3.967 | 3.967 | |||
| Type | Bore Diameter (d) | Outer Diameter (D) | Flange | Width | Flange Width(c) | ||
| Outer Diameter | (b) | ||||||
| (D1) | open | zz | open | zz | |||
| FR1-4zzs | 1.984 | 6.35 | 7.518 | 2.38 | 3.571 | 0.584 | 0.787 |
| FR133zz | 2.38 | 4.762 | 5.944 | 1.588 | 2.38 | 0.457 | 0.787 |
| FR1-5zzs | 7.938 | 9.119 | 2.779 | 3.571 | 0.584 | 0.787 | |
| FR144zzs | 6.35 | 7.518 | 2.38 | 2.779 | 0.584 | 0.787 | |
| FR2-5zz | 3.175 | 7.938 | 9.119 | 2.779 | 3.571 | 0.584 | 0.787 |
| FR2-6zzs | 9.525 | 10.719 | 2.779 | 3.571 | 0.584 | 0.787 | |
| FR2zz | 9.525 | 11.176 | 3.967 | 3.967 | 0.762 | 0.762 | |
| FE155zzs | 3.967 | 7.938 | 9.119 | 2.779 | 3.175 | 0.584 | 0.914 |
| FR156zzs | 4.762 | 7.938 | 9.119 | 2.779 | 3.175 | 0.584 | 0.914 |
| FR166zz | 9.525 | 10.719 | 3.175 | 3.175 | 0.584 | 0.787 | |
| FR3zz | 12.7 | 14.351 | 4.978 | 4.978 | 1.067 | 1.067 | |
| FR168zzs | 6.35 | 9.525 | 10.719 | 3.175 | 3.175 | 0.584 | 0.914 |
| FR188zz | 12.7 | 13.894 | 3.175 | 4.762 | 0.584 | 1.143 | |
| FR4zz | 15.875 | 17.526 | 4.978 | 4.978 | 1.067 | 1.067 | |
| FR1810zzs | 7.938 | 12.7 | 13.894 | 3.967 | 3.967 | 0.787 | 0.787 |
| FR6zz | 9.525 | 22.225 | 24.613 | 5.558 | 7.142 | 1.57 | 1.57 |
Established in 2007, Zhangzhou Runstar Bearings Manufacturing Co.,Ltd is a professional manufacturer of thrust ball bearing and miniature ball bearing in Zhangzhou,China. With a inner diameter from 2mm to 15mm for metric series and from 0.0781" to 0.375" for inch series , the material can be selected with chrome steel(Gcr15) or stainless steel(9Cr18) at your request, our characteristic products are thrust ball bearing with or without groove, miniature ball bearing,flange bearing and stainless steel bearing,as well as non-standard bearings, we have more than 12 year’s experience in supplying thrust ball bearing and miniature ball bearing for industries.