Hydraulic Gear Pumps
Series B1 Fixed Displacement Gear Pumps
B1 Features & Benefits
- High-strength construction – All B1 Series gear pumps have a Cast Iron front housing, high-strength aluminum alloy gear section, heat-treated alloy steel gears and shafts.
- Standard features – Double lip seals, heavy-duty DU bearing, straight, keyed shafts or tang shafts
- Relief and check valves are built-in
- Available in nine displacements – B1 gear pumps available in nine displacements from 0.06 to 0.59 cu.in. / rev.
Specifications
- Operating Pressure: Rated 2500PSI; Max. 3600PSI (Tang Limited to .06 to .37 2500PSI, .47 & .59 2000PSI)
- Operating Speed: 2500RPM Rated, 3600RPM Max.
- Shafts: Standard are, .5″ Straight Keyed Shaft With .125″ Key and .147″ Tang Shaft.
- Shaft Rotation: Keyed, Either Counterclockwise or Clockwise / Tang, Counterclockwise Only.
- Seals: Double Lip, Nitrile Rubber Seal – Standard
- Bearing: Four Heavy-duty DU Type
- Porting: 3/8″ SAE O-Ring Boss Pressure Port ; 1/2″ and 5/8″ SAE O-Ring Boss Suction Port.
- Valves: Built-in relief valve and check valve.
- Weight: 5-7 lbs
- Mounting: 2/4 Bolt “AA”(1.781″ dia. pilot), Standard; 2 Bolt (2″ dia. pilot) Requires adapter ring #49878.
- Pump Design: Pressure Loaded Thrust Plates and DU Bearings
Displacements
| N06B1 | N11B1 | N15B1 | N18B1 | N22B1 | N30B1 | N37B1 | N47B1 | N59B1 | |
|---|---|---|---|---|---|---|---|---|---|
| Displacement in3/rev (cm3/rev) | .06[.83] | .11[1.80] | .15[2.46] | .18[2.95] | .22[3.61] | .30[4.92] | .37[6.06] | .47[7.70] | .59[9.67] |
| Gear Width In. (mm) | .12[3.0] | .24[6.0] | .29[7.5] | .35[9.0] | .43[11.0] | .59[15.0] | .70[18.0] | .94[24.0] | 1.14[29.0] |
Output Flow/Input Power
| Output Flow, GPM | Output Flow, LPM | Input Power, HP 2000 PSI |
Input Power, HP 3600 PSI | |||||
|---|---|---|---|---|---|---|---|---|
| Model | 1800 RPM | 3600 RPM | 1800 RPM | 3600 RPM | 1800 RPM | 3600 RPM | 1800 RPM | 3600 RPM |
| N06B1 | .49 | .98 | 1.76 | 3.52 | .93 | 1.86 | 1.12 | 2.24 |
| N11B1 | .86 | 1.71 | 3.24 | 6.48 | 1.14 | 2.28 | 2.05 | 4.10 |
| N15B1 | 1.17 | 2.34 | 4.43 | 8.86 | 1.56 | 3.12 | 2.81 | 5.62 |
| N18B1 | 1.4 | 2.8 | 5.29 | 10.58 | 1.86 | 3.72 | 3.35 | 6.70 |
| N22B1 | 1.71 | 3.43 | 6.48 | 12.96 | 2.27 | 4.54 | 4.09 | 8.18 |
| N30B1 | 2.34 | 4.68 | 8.86 | 17.71 | 3.11 | 6.22 | 5.60 | 11.78 |
| N37B1 | 2.88 | 5.77 | 10.91 | 21.82 | 3.83 | 7.66 | 6.89 | 13.78 |
| N47B1 | 3.36 | 7.32 | 13.86 | 27.72 | 4.87 | 9.74 | 8.77 | 17.54 |
| N59B1 | 4.6 | 9.16 | 17.39 | 43.78 | 6.12 | 12.24 | 11.01 | 22.02 |
Assembly Dimensions
*T – Tang Shaft, 1/2″ Dia., 0.147″ Wide, 0.31″ Extension.
*J – Thick Tang Shaft, 1/2″ Dia., 0.250″ Wide, .731″ Extension. (Special Order Only)
*K – Straight Keyed Shaft, 1/2″ Dia., 1.5″ Extension, 0.12 Square Key.
Displacements
| 06 B1 | 11 B1 | 15 B1 | 18 B1 | 22 B1 | 30 B1 | 37 B1 | 47 B1 | 59 B1 | |
|---|---|---|---|---|---|---|---|---|---|
| Displacement cu.In./rev (ml/rev) | .06(.83) | .11(1.80) | .15(2.46) | .18(2.95) | .22(3.61) | .30(3.61) | .37(6.06) | .47(7.7) | .59(9.67) |
| Dim L In. (mm) | 3.7(93.8) | 3.7(93.8) | 3.8(96.3) | 3.9(98.3) | 3.9(100.3) | 4.0(102.3) | 4.1(104.2) | 4.5(114.3) | 4.8(120.8) |
| Dim M In. (mm) | 2.6(68.3) | 2.6(68.3) | 2.8(71.8) | 2.8(71.8) | 2.8(71.8) | 2.8(71.8) | 2.8(71.8) | 3.1(78.8) | 3.1(78.8) |
| Suction Port | ½” SAE | ½” SAE | ½” SAE | ½” SAE | ½” SAE | ½” SAE | ½” SAE | 5/8″ SAE | 5/8″ SAE |
360-705-0918
sales@northpointeindustries.com
2918 Ferguson Street SW Suite C2
Tumwater, WA 98512
