What do the letters in the Rexroth gear pump models represent?
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The meanings of the model numbers for Rexroth gear pumps produced by various manufacturers, both domestic and international, are quite complex and not standardized; it is necessary to refer to each manufacturer’s product catalog. Here, the domestically produced CBN-E3 RF type is used as an example to illustrate how Rexroth gear pump model numbers are designated. CB denotes the name of the Rexroth gear pump, while N represents the design code for such pumps; design codes include K, S, N, etc. E represents the pressure rating; the pressure ratings for Rexroth gear pumps are classified as D-10MPa ； E-16-MPa ； F-20 MPa ； G-25MPa。 3 represents the module of the Rexroth gear pump; the modules are 1, 2, 3, 4, and 5. u denotes the nominal displacement, which is generally between 0.6 and 63 ml per revolution. R indicates the flange mounting type: O for diamond shape, R for rectangular shape, and S for square shape. F denotes the type of oil port: F stands for flange, T for special, and S for square. F denotes the type of oil port. F stands for flange, T stands for special, and L stands for thread. ⊿It indicates the shaft extension type: B denotes a flat mouth, H denotes a flanged design, Y denotes a conical shape, and P denotes a single key. n indicates the rotation direction: L for left rotation, R for right rotation, and T for bidirectional rotation.
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