Manufacturer/Model By Series

Economy RC Engine bearing kits are the most affordable way to replace stock bearings. These bearings have chrome steel races, balls, retainers and shields. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT(2)MR689/MR6901-ZZ

High Speed RC Engine bearing kits come with a high speed retainer that can handle 15% more Rpm's, These bearings have steel balls, a high speed retainer and a C3 fit. High Performance bearings can be used for any application seeking a bearing with a strong, lightweight retainer. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT(2)MR689/MR6901-Z TH

Economy RC Engine bearing kits are the most affordable way to replace stock bearings. These bearings have chrome steel races, balls, retainers and shields. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT(2)MR689-UU/MR6901-ZZ

High Speed RC Engine bearing kits come with a high speed retainer that can handle 15% more Rpm's, These bearings have steel balls, a high speed retainer and a C3 fit. High Performance bearings can be used for any application seeking a bearing with a strong, lightweight retainer. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT(2)MR689-UU/MR6901-ZTH

Ceramic Premium bearing kits have ceramic balls, a high speed retainer and a C3 fit. Ceramic hybrids are lighter, capable of achieving higher RPM’s and sustaining higher operating temperatures than traditional bearings. Whenever using a ceramic hybrid bearing in an RC Engine, we suggest leaving both seals on for the front bearing and one seal facing the inside of the motor on the rear bearing. This protects the RC engine from possible bearing failure. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT(2) MR689C / MR6901C

RC Engine Stainless Steel Bearing kits are one of the most affordable way to replace stock bearings. These bearings have stainless steel races, balls, retainers and seals. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details.

Economy RC Engine bearing kits are the most affordable way to replace stock bearings. These bearings have chrome steel races, balls, retainers and shields. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT (2) MR6901-ZZ / MR689-UU

Ceramic High Performance bearing kits come with a high speed retainer that can handle 15% more Rpm's. In most cases the front bearings are supplied with rubber seals (2RU) which helps stop leakage through the front of the engine. Metal shields (ZZ) will be supplied in some cases where the sealed version is not available. These bearings have ceramic balls, a high speed retainer and a C3 fit. Ceramic hybrids are lighter, capable of achieving higher RPM’s and sustaining higher operating temperatures than traditional bearings. Whenever using a ceramic hybrid bearing in an RC Engine, we suggest leaving both seals on for the front bearing and one seal facing the inside of the motor on the rear bearing. This protects the RC engine from possible bearing failure. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT (2) 689CRUT/6901TC

High Performance RC Engine bearing kits come with a high speed retainer that can handle 15% more Rpm's, In most cases the front bearings are also supplied with rubber seals (2RU) which helps to stop leakage through the front of the engine. Metal shields (ZZ) will be supplied in some cases where the sealed version is not available. These bearings have steel balls, a high speed retainer and a C3 fit. High Performance bearings can be used for any application seeking a bearing with a strong seal. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT (2) 689RUT/6901T

High Performance RC Engine bearing kits come with a high speed retainer that can handle 15% more Rpm's, In most cases the front bearings are also supplied with rubber seals (2RU) which helps to stop leakage through the front of the engine. Metal shields (ZZ) will be supplied in some cases where the sealed version is not available. These bearings have steel balls, a high speed retainer and a C3 fit. High Performance bearings can be used for any application seeking a bearing with a strong seal. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT (2) 689NRUT/6901T

Ceramic High Performance bearing kits come with a high speed retainer that can handle 15% more Rpm's. In most cases the front bearings are supplied with rubber seals (2RU) which helps stop leakage through the front of the engine. Metal shields (ZZ) will be supplied in some cases where the sealed version is not available. These bearings have ceramic balls, a high speed retainer and a C3 fit. Ceramic hybrids are lighter, capable of achieving higher RPM’s and sustaining higher operating temperatures than traditional bearings. Whenever using a ceramic hybrid bearing in an RC Engine, we suggest leaving both seals on for the front bearing and one seal facing the inside of the motor on the rear bearing. This protects the RC engine from possible bearing failure. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT (2) 689NCRUT/6901TC

Ceramic Lightning Performance RC Engine bearing kits have a special heavy duty, steel retainer that is designed to withstand higher nitro content. Ceramic hybrids are lighter, capable of achieving higher RPM’s and sustaining higher operating temperatures than traditional bearings. Whenever using a ceramic hybrid bearing in an RC Engine, we suggest leaving both seals on for the front bearing and one seal facing the inside of the motor on the rear bearing. This protects the RC engine from possible bearing failure. When selecting your Engine Bearing kit please check to be sure you are getting the proper sized bearings for your engine or contact your Boca Bearing Sales rep for details. KIT (2) SMR689CN-2YS/SMR6901C-2YS