What are the practical differences between R1 threads and R2 threads?
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The R thread is a 55° sealing thread; the external thread is only in conical form, while the internal thread comes in two types: cylindrical (RP) and conical (RC). R1 is the external thread that mates with RP, and R2 is the external thread that mates with RC. Since all R threads can achieve sealing through their threads, what is the difference between using the R1/RP combination and the R2/RC combination in design? Is the sealing effect the same? Why is it divided this way? It’s not clear from GB/T7306; I hope fellow forum members can help provide an answer. Thank you!
Push it yourself – for non-sealed G threads, only one type is used. Then why are there two types of fits for sealed R threads?
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Clause 9.1 of GB/T 7306.1-2000 states that Rp—represents the internal cylindrical thread； R1—represents a tapered external thread that mates with a cylindrical internal thread. Paragraph 9.1 of GB/T 7306.2-2000 states that Rc—represents circular internal threads ； R2—refers to the external tapered thread that mates with the internal tapered thread.
The R1 and R2 parameters are actually not different; they both represent the assembly relationship.
I’ve been looking for information on this topic these past two days; I’m confused as to why 7306 is divided into R1 and R2. Can R1 and R2 be used interchangeably, or are they the same thing?
I’ve been looking for information on this topic these past two days; I’m confused as to why 7306 is divided into R1 and R2. Can R1 and R2 be used interchangeably, or are they the same thing?
I studied it; I searched on Baidu for 7306 to take a look