1PCS cylindrical roller bearing without outer ring RN204 RN205 RN206 RN207 RN208 RN209 RN210 RN211 RN212EM(Rn207) Product overview This listing provides a single unit cylindrical roller bearing without an outer ring. Models included are RN204, RN205, RN206, RN207, RN208, RN209, RN210, RN211, and RN212EM (RN207). The bearing consists of an inner ring and cylindrical rollers and is supplied without an outer ring. It is designed to be used with an outer race or with a housing that provides the outer element of the bearing assembly. Key benefits radial load capacity: Cylindrical rollers offer strong radial support with efficient load distribution. Flexible outer race integration: Without an outer ring, the bearing can be paired with a compatible outer race or housing to suit specific design needs. Compact and adaptable design: The absence of an outer ring allows for leaner assemblies where space is at a . Replacement compatibility: The RN204 to RN212 EM family enables selection of bore size to match existing inner race dimensions. Reliable performance with proper lubrication: When installed and lubricated correctly, provides durable, steady operation in suitable applications. Key attributes Functionality: Cylindrical roller bearing without outer ring. Compatibility: Designed to be used with an outer race or housing that provides the outer element; models RN204 through RN212 EM (including RN207 in the EM/RN207 variant). Size: Bore size corresponds to the specific RN204, RN205, RN206, RN207, RN208, RN209, RN210, RN211, or RN212 EM variant; exact dimensions should be confirmed from the manufacturer's specifications for each model. Material: Manufactured to standard bearing materials appropriate for cylindrical roller bearings (material details should be confirmed in the manufacturer specifications for each model). Performance: Suitable for applications requiring radial load capacity and a bearing arrangement that uses an external outer race or housing; performance depends on outer race fit, lubrication, and correct installation. Specifications and variants Models included: RN204, RN205, RN206, RN207, RN208, RN209, RN210, RN211, RN212 EM (RN207) Configuration: Inner ring with cylindrical rollers; no outer ring Outer ring: Not included in the bearing unit; outer ring provided by an outer race or housing in the assembled product Optional variant: RN212EM and RN207 variant considerations noted in the RN212EM(RN207) designation Use cases and applications Application 1: Machinery where the outer race is integrated into a housing or shaft assembly, such as certain machine tool spindles or automation equipment that uses a separate outer race. Application 2: Heavy radial load support in presses or rolling equipment that requires a compact bearing assembly with the outer race supplied externally. Application 3: Conveyor and material handling systems where a dedicated outer race or sleeve is pressed into the frame or hub, while the RN204–RN212 EM inner race and rollers support the rotating element. Installation and maintenance notes Verify bore size and match the RN204–RN212 EM model to the inner race dimensions of your assembly. Ensure the outer race is compatible with the chosen housing or outer sleeve; the bearing itself is supplied without an outer ring. Use appropriate lubrication per the application and manufacturer recommendations; maintain cleanliness during installation. Inspect mating components for proper fit to avoid misalignment or binding that could affect performance. Packaging and guidance Each unit is sold as 1 piece. Choose the RN204, RN205, RN206, RN207, RN208, RN209, RN210, RN211, or RN212 EM variant to match your bore size requirements. For precise dimensions, tolerances, and material specifications, refer to the manufacturer's official datasheets corresponding to each RN204–RN212 EM model. Notes This description reflects the product's stated configuration: cylindrical roller bearing without outer ring, models RN204 through RN212 EM (RN207). No outer ring is included in the unit; an outer race or housing must complete the bearing assembly.