Norgren Lubricators - Manual (Page 26)

10-015, 10-065 Lubricators
Littleton, CO USA Phone 303-794-2611 Fax 303-795-9487 ALE-14-22
Machine Bearing Lubricators
Machine bearing lubricators deliver a fog of small oil particles through a
manifold system to various machine elements (bearings, gears, chains, etc).
At the machine elements a nozzle-like fitting, called a reclassifier, causes the
small oil particles to combine into larger particles. The larger particles cover
the bearing surfaces with a protective film of clean oil. An air line filter and
pressure regulator must be installed immediately upstream of the lubricator.
How to Select
Selection requires a careful analysis of the lubrication requirements of the
machine. After the analysis, the proper lubricator, reservoir, and reclassifiers
may be ordered. The following is an abbreviated summary of the steps
required to analysis lubrication requirements of the machine. See Norgren
Publications NT-1, Design Manual for Machine Lubrication, for complete
details.
1. Determine the bearing inch requirement.
a. List and identify the bearing-inch rating of all machine
elements requiring lubrication.
b. List the reclassifier ratings required at each point of
lubrication.
c. Total the reclassifier ratings. This is the bearing-inch
requirement to use in selecting the lubricator.
2. Determine reservoir capacity required.
a. Calculate rate of oil usage based on bearing-inch rating.
b. Determine how often the reservoir can be refilled.
c. Select reservoir capacity.
3. Determine the air flow required. See the Operating
Ranges and Air Flow Requirements chart for air flow
requirements of the lubricator.
4. Determine any accessories required.
Straight, compression tube Elbow, compression tube Pressure jet, compression tube Straight, pipe thread* 1/4 OD copper tube, solder
Model BI Rating Model BI Rating Model BI Rating Model BI Rating Model BI Rating
18-009-003 0 to 1 18-009-008 0 to 1 18-009-030 0 to 1 18-009-001 0 to 1 18-009-029 2 to 4
18-009-010 1 to 2 18-009-011 1 to 2 18-009-031 1 to 2 18-009-002 0 to 1
18-009-012 2 to 4 18-009-013 2 to 4 18-009-032 2 to 4 18-009-005 2 to 4
18-009-014 4 to 8 18-009-015 4 to 8 18-009-006 2 to 4
18-009-007 4 to 8
Reclassifiers with Bearing Inch (BI) Ratings - Dimensions in mm (inches)
0.5
(13) 1.25 (32)
1/8 NPT
0.5
(13) 1.19 (30)
1/8 NPT
0.5
(13)
1.75 (45)
1 (25)
1 (25)
1/8 NPT
1.25 (32)
0.69
(18) 1.47 (37)
0.75 (19)
Copper Tube
* 1/4 NPT female x 1/8 NPT male threads all models except 18-009-002 and -006, which have 1/4 NPT female and male threads.
Operating Ranges and Air Flow Requirements
Bearing Lubricator Manifold
Inch Inlet Pressure Air Flow Pressure
Requirement psig (bar) scfm (dm 3 /s) Inches H
2
O
16 8 (0.6) 1.6 (0.76) 8
24 17 (1.2) 2.4 (1.13)
32 26 (1.8) 3.1 (1.46)
16 10 (0.7) 1.8 (0.85) 10
24 20 (1.4) 2.7 (1.27)
32 31 (2.2) 3.6 (1.70)
16 12 (0.8) 2.0 (0.94) 12
24 23 (1.7) 3.0 (1.42)
32 35 (2.4) 4.0 (1.89)
8 6 (0.4) 1.1 (0.52) 15
16 15 (1.0) 2.2 (1.04)
24 26 (1.8) 3.3 (1.56)
32 40 (2.8) 4.5 (2.12)