R-rings for pilot oil connections. 17. • Seal kits. 17. • Fixing screws. 17. • Orifice dimensions. 17. Ordering details, symbols and unit dimensions:. Bosch Rexroth AG Hydraulics. P T. A B a. 0 b. A B. P T a. 0. 4WRE; 4WREE RE 29061/11.12. Ordering code. Further details in the plain text. Seal material.where it is sealed by the shaft seal ring. The bearing forces are R. SAE J744 82-2 A. 2-bolt flange. Ø 82.55 mm. P Transmission flange. Pilot Ø 50 mm. boschrexroth.com/spc. Cover plates Observe compatibility of seals with hydraulic fluid used! 5. Type of con- nection: R-ring plate. Ensure that all seals and back-up rings for the matching surfaces are flawless and correctly placed. • Do not put any sealing material other than the standard Alternatively, you can also select a connector with integrated interference protection circuit. Page 6. 6/28. WE | Directional spool valve. Bosch Rexroth AG O-rings · R3411 01 · O-rings · R3411 01 · Not product-specific documents · Service · O-rings · R3411 01 · O-rings. •R-rings for the pilot oil connections. 62. • Seal kits. 63. •Fixing screws. 63. • Orifice dimensions. 63. Ordering details, symbols and unit dimensions:.