White Paper on Bearing Seals and Shields including ZZS; ZZ; 2RS; 2RU; 2VS; TTS; Rubber Seals; Felt Seals; and Shrouded Seals.
MR16101-Z THB . Boca Bearing offers a full range of Econo-Power style Engine Replacement Most Econo-power bearings come equipped with two metal dust covers (designated ZZ) or they can be purchased with two rubber seals (2RS).
front and rear replacement RC engine bearings R4-2RS. $5.95. 0.2500 x 0.6250 x 0.1960. SR4-ZZ. $6.95. 0.2500 x 0.6250 x 0.1960 .. MR16101-Z THB.
Bearing Numbers Explained. (1) Prefix *Note: Each bearing company may create their own prefixes. The example at the header shows a 6001 2RS bearing.
This kind of ball bearing has a spherical outer race, allowing the axis of the bearing to An R8-2RS bearing, for example, has an 8/16th or 1/2 inch bore.
Suffix 2RS, 2RSH, 2RS1, LLU, DDU, 2RSR, EE Bearing with two rubber seals. Example 6205 LLU Suffix Z, ZR Bearing with one metal shield. Example 6205 ZR