The Rowland Company
The Rowland Company
4900 North 20th St.
Philadelphia, PA 19144
Toll Free: (800) 925-8824
Phone: (215) 455-4900
Fax: (215) 455-8888
Email: rowland@rowland2.com
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Dual passage rotorseals allow the transfer of media through two separate shaft passages located on the same shaft end. Each passage can be used for a different medium; for instance, air for clutch actuation and oil for bearing lubrication. Inlet and outlet ports have American National Pipe Threads.
Unit of Measure
Items Dual Passage Rotorseals Type AD
145785C
Dual Passage Rotorseals 		Dual Passage Rotorseals Type ADP
145785B
Dual Passage Rotorseals 		Dual Passage Rotorseals Type BD & FDA
145405T
Dual Passage Rotorseals 		Dual Passage Rotorseals Type BD & FDA
145583AJ
Dual Passage Rotorseals
Description N/A The AD rotorseal has 1/4-18 inlet ports for each of the passages. Both passage outlets can discharge directly into the shaft end. An optional 1/4-18 outlet port in the mounting flange could be used for the outer passage. The inner passage nose is sealed on its outside diameter by a pair of "O" rings. The outer passage is sealed to the shaft end with a compression grommet. N/A The type ADP rotorseal attaches to the shaft end with a 1-11 1/2 thread outlet instead of a mounting flange. The outer passage outlet feeds into the end of the machine shaft. The inner passage is a 1/4-18 port located on a flat of the hex mounting nut. N/A The type BD is similar to the AD, except for a larger diameter mounting flange. The inner passage is sealed with a flat rubber washer which compresses on the bottom of a counterbore in the shaft end. A compression grommet is used between the shaft end and mounting flange to seal the outer passage. N/A The FDA type rotorseal has larger passages than the BD rotorseal. The two inlet ports and the two flange outlet ports for the outer passage are 1/2-14. Compression grommets are used between the shaft end and mounting flange to seal the inner and outer passages.
Size N/A AD N/A ADP N/A BD N/A FDA
Dimension D N/A 5.69 in145 mm N/A 5.28 in134 mm N/A 4.88 in124 mm N/A 6.31 in160 mm
Dimension D1 N/A 4.56 in116 mm N/A 4.16 in106 mm N/A 3.75 in95 mm N/A 4.94 in125 mm
Dimension D30 N/A 0.750 in19 mm N/A 1.000 in25.0 mm N/A 0.393 in10.0 mm N/A 0.250 in6 mm
Dimension D31 N/A 0.75 in19 mm N/A 1.00 in25 mm N/A 0.75 in19 mm N/A 1.19 in30 mm
Dimension D48 N/A 4.14 in105 mm N/A 3.73 in95 mm N/A 3.34 in85 mm N/A 4.22 in107 mm
Dimension D49 N/A 1.13 in29 mm N/A 1.13 in29 mm N/A 1.13 in29 mm N/A 1.47 in37 mm
Dimension H N/A 3.25 in83 mm N/A 3.25 in83 mm N/A 3.25 in83 mm N/A 3.75 in95 mm
Dimension H1 N/A 1.75 in44 mm N/A 1.75 in44 mm N/A 1.75 in44 mm N/A 2.06 in52 mm
Dimension H2 N/A 2.562 in65.1 mm N/A N/A 3.562 in90.5 mm N/A 3.562 in90.5 mm
Dimension H11 N/A 3.250 in82.6 mm N/A N/A 4.250 in108 mm N/A 4.250 in108 mm
Dimension H13 N/A 2.17 in55 mm N/A N/A 2.78 in71 mm N/A 3.22 in82 mm
Dimension H16 N/A 1.50 in38 mm N/A N/A 1.88 in48 mm N/A 2.25 in57 mm
Dimension L N/A 0.34 in9 mm N/A N/A 0.40 in10 mm N/A 0.40 in10 mm
Dimension M N/A 0.38 in10 mm N/A 0.50 in13 mm N/A 0.38 in10 mm N/A 0.63 in16 mm
Dimension O1 N/A 1/4-18 N/A 1/4-18 N/A 1/4-18 N/A 1/2-14
Dimension O3 N/A 0.38 in10 mm N/A N/A 0.38 in10 mm N/A 0.50 in13 mm
Dimension S1 N/A 0.798 in20.3 mm N/A N/A 0.750 in19.1 mm N/A 0.750 in19.1 mm
Inner Passage Area N/A 0.049 in²0.32 cm² N/A 0.049 in²0.32 cm² N/A 0.049 in²0.32 cm² N/A 0.196 in²1.26 cm²
Outer Passage Area N/A 0.155 in²1 cm² N/A 0.124 in²0.80 cm² N/A 0.171 in²1.10 cm² N/A 0.221 in²1.43 cm²
Weight N/A 4.3 lb1.9 kg N/A 4.0 lb1.8 kg N/A 5.8 lb2.6 kg N/A 9.4 lb4.3 kg
Maximum Speed2 N/A 1200 rpm N/A 1200 rpm N/A 1200 rpm N/A 1000 rpm
Maximum Pressure3 N/A 150 psi10.4 bar
Note N/A Passage consists of ten 0.14 in (3.6 mm) diameter holes. N/A Passage consists of eight 0.14 in (3.6 mm) diameter holes.
Passage consists of eight 0.14 in (3.6 mm) diameter holes. 		N/A Passage consists of eleven 0.14 in (3.6 mm) diameter holes.
Tolerance +0.000/-0.003 in (+0.00/-0.08 mm) 		N/A Passage consists of eight 0.18 in (4.8 mm) diameter holes.
Manufacturer N/A Eaton-Airflex
  • 1 Tolerance +0.000/-0.002 in (+0.00/-0.05 mm)
  • 2 Operation at maximum pressure and speed should be avoided. Refer to K-14 for operation parameters.
  • 3 Operation at maximum pressure and speed should be avoided. Refer to K-14 for operation parameters.