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| | .gif) | External Light Duty (US): Light-duty single turn rings used in low clearance applications. Also used as a positioning point for light loads. Radius notch on one end for removal. Narrow radial wall yields moderate thrust loads. | |
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| | .gif) | External Medium Duty (RS): Very popular series that will accommodate light and medium bearing series thrust loads. Available in military and aerospace specifications. | |
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| | .gif) | External Medium Heavy (RST): Originally designed to fit NAS 50-51 grooves, RST is a common OEM specification. Two and three turn designs are easier to install than the RSN because of multiple turn design. | |
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| | .gif) | External Heavy Duty (RSN): Heavy duty design for use in NAS 669-670 deep grooves in applications like double row and tapered roller bearings. Requires no tools for removal. | |
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| | .gif) | External Self-Locking (KS): Similar to the External Medium Duty, except with tab and slot locking system. Used in unstable environments subject to vibration, shockwaves, or high centrifugal forces. | |
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| | .gif) | External Dished (MS): Standard ring formed into a conical shape that is designed to take up end-play. Best results occur when ring is installed in a non-loaded condition. | |
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| | .gif) | External Tabbed (SSN): Standard RSN ring with a prong for easy removal using pliers or screwdriver, or for holding it with your teeth. | |
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| | .gif) | Internal Light Duty (UR): Light duty single turn rings used in low clearance applications. Also used as a positioning point for light loads. Radius notch on one end for removal. Narrow radial wall yields moderate thrust loads. | |
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| | .gif) | Internal Medium Duty (RR): Very popular series that will accommodate light and medium bearing series thrust loads. Available in military and aerospace specifications. | |
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| | .gif) | Internal Medium Heavy (RRT): Originally designed to fit NAS 50-51 grooves, RRT is a common OEM specification. Two and three turn designs are easier to install than RRN because of multiple turn design. | |
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| | .gif) | Internal Heavy Duty (RRN): Heavy-duty design for use in NAS 669-670 deep grooves in applications like double row and tapered roller bearings. Requires no tools for removal. | |
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| | .gif) | Internal Self-Locking (KR): Similar to the Internal Medium, except with tab and slot locking system. Used in unstable environments subject to vibration, shockwaves, or high centrifugal forces. | |
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| | .gif) | Internal Dished (MR): Standard ring formed into a conical shape that is designed to take up end-play. Best results occur when ring is installed in a non-loaded condition. | |
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| | .gif) | Internal Tabbed (SSI): Standard RSN ring with prong for easy removal using pliers or screwdriver, or for holding it with your teeth. | |
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| | .gif) | Internal Balanced (BR): Similar to the Internal Medium Ring, except a series of slots opposite the ring gap balance the part for high RPM applications. Tab and slot locking system provides locking benefits. | |
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| | .gif) | Metric Basic External (DS): Popular series for metric applications that will accommodate light and medium bearing series thrust loads. Fits same grooves but does not conform to DIN 471. | |
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| | .gif) | Metric External Aerospace (DAS): Standard metric series produced to metric aerospace specifications. Fits into grooves designed for two turn spiral rings in light and medium duty applications. | |
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| | .gif) | Metric Basic Internal (DH): Popular series for metric applications that will accommodate light and medium bearing series thrust loads. Fits into same grooves but does not conform to DIN 472. | |
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| | .gif) | Metric Internal Aerospace (DAH): Standard metric series produced to metric aerospace specifications. Fits into grooves designed for two turn spiral rings in light and medium duty applications. | |
