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303 Series Custom & Special Bearings — Sizes & Specifications

194 models in the 303 series, 15–260 mm bore. Every row links to the full specification page and to the cross-reference page of that model.

ModelBrandBore d (mm)OD D (mm)Width B (mm)
30306DJRKOYO7219Cross-ref →
30313CRKOYO14033Cross-ref →
30313DJRKOYO14033Cross-ref →
30313JRKOYO14033Cross-ref →
30314CRKOYO15035Cross-ref →
30314DJRKOYO15035Cross-ref →
30314JRKOYO15035Cross-ref →
30318DJRKOYO19043Cross-ref →
30318DRKOYO19043Cross-ref →
30319DJRKOYO20045Cross-ref →
30319JRKOYO20045Cross-ref →
30322DKOYO24050Cross-ref →
30322JRKOYO24050Cross-ref →
30302/P6ANDGE154214.25—
30302/P6xANDGE154214.25—
30302JRKOYO154213—
30303/P6xANDGE174715.25—
30303DNSK174715.25Cross-ref →
30303JRKOYO174714Cross-ref →
30303RKOYO174714Cross-ref →
303KGANDGE174714—
303SFGANDGE174714—
303SGANDGE174714—
30304/P5ANDGE205216.25—
30304/P6ANDGE205216.25—
30304/P6xANDGE205216.25—
30304ACKOYO205216—
30304AJRKOYO205216Cross-ref →
30304DNSK205216.25—
303/22RKOYO225616—
303/22XRKOYO225616—
30305/P5ANDGE256218.25—
30305/P6ANDGE256218.25—
30305/P6xANDGE256218.25—
30305BANDGE256218.25—
30305DJRKOYO256217Cross-ref →
30305JRKOYO256217Cross-ref →
303/28CRKOYO286818—
303/28RKOYO286818—
30306/Bushing - HA - BushingANDGE307220.75—
30306/HAP6XANDGE307220.75—
30306/P5ANDGE307220.75—
30306/P6xANDGE307220.75—
30306JRKOYO307219Cross-ref →
303/32NSK327521.75Cross-ref →
303/32CRKOYO327520—
303/32RKOYO327520—
30307/P5ANDGE358022.75—
30307/P6xANDGE358022.75—
30307DJRKOYO358021Cross-ref →
30307JR-1KOYO358021Cross-ref →
30307XRKOYO358021Cross-ref →
30308/P6xANDGE409025.25—
30308DJRKOYO409023Cross-ref →
30308JRKOYO409023Cross-ref →
30308XRKOYO409023Cross-ref →
30309/P6ANDGE4510027.25—
30309/P6xANDGE4510027.25—
30309CRKOYO4510025Cross-ref →
30309DJRKOYO4510025Cross-ref →
30309JRKOYO4510025Cross-ref →
30310-1ANDGE5011029.25—
30310/P6xANDGE5011029.25—
30310CRKOYO5011027Cross-ref →
30310DJRKOYO5011027Cross-ref →
30310JRKOYO5011027Cross-ref →
30311/P6xANDGE5512031.5—
30311CRKOYO5512029Cross-ref →
30311DJRKOYO5512029Cross-ref →
30311JRKOYO5512029Cross-ref →
30311MTANDGE5515245—
30312/P6xANDGE6013033.5—
30312CRKOYO6013031Cross-ref →
30312DJRKOYO6013031Cross-ref →
30312UNTN6013033.5—
30312STANDGE6017945—
30313/P5ANDGE6514036—
30313/P6ANDGE6514036—
30313/P6xANDGE6514036—
30313/R01ANDGE6514036—
30313/YA6ANDGE6514036—
30313/YA6-1ANDGE6514036—
30313/YA6-2ANDGE6514036—
30313X2AANDGE6514040—
30314/P5ANDGE7015038—
30314/P6xANDGE7015038—
30314/YA6ANDGE7015038—
30314JANDGE7015038—
30315/P6xANDGE7516040—
30315CRKOYO7516037Cross-ref →
30315DJRKOYO7516037Cross-ref →
30315DRKOYO7516037Cross-ref →
30315JRKOYO7516037Cross-ref →
30315RKOYO7516037Cross-ref →
30360SKF77.22—
30316/P5ANDGE8017042.5—
30316/P6xANDGE8017042.5—
30316DJRKOYO8017039Cross-ref →
30316DUNTN8017042.5—
30316JRKOYO8017039Cross-ref →
30316RKOYO8017039Cross-ref →
30316UNTN8017042.5—
30317/P5ANDGE8518044.5—
30317/P6xANDGE8518044.5—
30317DKOYO8518041Cross-ref →
30317DJRKOYO8518041Cross-ref →
30317RKOYO8518041Cross-ref →
30318/P6xANDGE9019046.5—
30318JRKOYO9019043Cross-ref →
30318RKOYO9019043Cross-ref →
30319NACHI9520049.5Cross-ref →
30319KOYO9520045Cross-ref →
30319/P5ANDGE9520049.5—
30319/P6ANDGE9520049.5—
30319/P6xANDGE9520049.5—
303192NTN9520049.5—
30319DUNTN9520049.5—
30320NACHI10021547Cross-ref →
30320KOYO10021551.5Cross-ref →
30320/P5ANDGE10021551.5—
30320/P6ANDGE10021551.5—
30320/P6xANDGE10021551.5—
30320DNACHI10021547Cross-ref →
30320DKOYO10021551.5Cross-ref →
30321KOYO10522549Cross-ref →
30321NACHI10522553.5Cross-ref →
30321/P5ANDGE10522553.5—
30321/P6ANDGE10522553.5—
30321/P6xANDGE10522553.5—
30321DKOYO10522549Cross-ref →
30321DNACHI10522553.5Cross-ref →
30322KOYO11024050Cross-ref →
30322/P5ANDGE11024054.5—
30322/P6xANDGE11024054.5—
30322DNACHI11024050Cross-ref →
30324KOYO12026055Cross-ref →
30324NACHI12026059.5Cross-ref →
30324/P5ANDGE12026059.5—
30324/P6xANDGE12026059.5—
303242NTN12026059.5—
30324DNACHI12026059.5Cross-ref →
30324DKOYO12026055Cross-ref →
30324JRKOYO12026055Cross-ref →
303026/P6ANDGE13028063.75—
30326NACHI13028058Cross-ref →
30326/P5ANDGE13028063.75—
30326/P6xANDGE13028063.75—
30326DKOYO13028058Cross-ref →
30326JRKOYO13028058Cross-ref →
30328NSK14030067.75Cross-ref →
30328NACHI14030062Cross-ref →
30328/P5ANDGE14030067.75—
30328/P6xANDGE14030067.75—
303282NTN14030067.75—
30328DKOYO14030062Cross-ref →
30328DNACHI14030062Cross-ref →
30330NACHI15032072Cross-ref →
30330/P5ANDGE15032072—
30330/P6xANDGE15032072—
303302NTN15032072—
30330DNACHI15032072Cross-ref →
30330DKOYO15032065Cross-ref →
30330JRKOYO15032065Cross-ref →
30332NACHI16034068Cross-ref →
30332/P5ANDGE16034075—
30332/P6xANDGE16034075—
30332DNACHI16034068Cross-ref →
30332DKOYO16034068Cross-ref →
30332JRKOYO16034068Cross-ref →
30332M/YA5ANDGE16046075—
303342NTN17036080—
30334DNSK17036080Cross-ref →
30334DNACHI17036080Cross-ref →
30334DKOYO17036072Cross-ref →
30336KOYO18038075Cross-ref →
30336NACHI18038083Cross-ref →
30336NSK18038083Cross-ref →
30336DKOYO18038075Cross-ref →
30336DNSK18038083Cross-ref →
30336DNACHI18038083Cross-ref →
30338KOYO19040078Cross-ref →
30338NSK19040086Cross-ref →
30338NACHI19040086Cross-ref →
30338DNACHI19040086Cross-ref →
30338DKOYO19040078Cross-ref →
30340NACHI20042080Cross-ref →
30340KOYO20042080Cross-ref →
30340DKOYO20042080Cross-ref →
30340DNACHI20042080Cross-ref →
30344NACHI22046088Cross-ref →
30344KOYO22046097Cross-ref →
30348NSK240500105Cross-ref →
30348NACHI24050095Cross-ref →
30352NSK260540113Cross-ref →

About the 303 series

303 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 Custom & Special Bearings series: 62 · 685 · 63 · 60 · SNV · K · BND · 697