KWS Manufacturing

Screw Conveyor Hanger Bearings

Hanger Bearing Styles Style 216 Hanger Bearing Style 226 Hanger Bearing Style B Hanger Bearing


Hanger bearings provide a bearing surface to support a screw section when multiple screw sections are used in a screw conveyor. Hanger bearings are journal or plain type bearings that mount in hangers and are replaceable when worn. Many different hanger bearing materials are available, depending on the application. Style 216 and 226 bearings are the most widely used and are in stock at KWS.

KWS hanger bearing recommendations are listed in the Component Series Table of the KWS Screw Conveyor Engineering Guide for the specific bulk material to be conveyed. The most common hanger bearing materials are described in the table below. Please consult KWS Engineering for specific hanger bearing recommendations.

Hanger Bearings Nomenclature
Bearing Material RPM
Max
Temp Max (°F) Wear Resist* Industry Uses Comments
Nylatron (NR) 60 180 3 Chemical handling, grain, feed Self lubricating, very low load capacity
UHMW 60 160 6 Food, Ice USDA approved, doesn’t swell in water
Gatke (G) 75 250 7 Medium temp applications (alternate for Hard Iron) Low load capacity, Food Grade
Hard Iron (H) 75 400 9 Lime, Cement, Salt, Gypsum Requires hardened shaft, can be noisy, lube req’d in some applications
Wood (W) 175 160 4 Grain, Feed, Fertilizer Self lubricating, good general purpose
Plastech (P) 100 160 6 Grain, Food Food grade
Bronze (BR) 150 850 7 Grain, Feed, Processing Self lubricating, high quality bearings, high load capacity
Ball Bearing (BB) 400 180 1** High speed, low loading Screw action tends to force product thru seals reducing bearing life
Stellite (S) 50 1000 10 Very high temp applications, metal processing, ceramics Requires stellite insert in shaft

* 0 = Least, 10 = Highest     ** Depending on bearing type and seal arrangement

Hanger Bearing Styles

Style 216 Hanger Bearings

Style 216

Style 216 hanger bearings are used in 216, 316, and 230 hangers, and are manufactured to CEMA dimensional standards. Style 216 hangers and hanger bearings offer superior rigidity and are excellent for extra heavy-duty applications.

Style 226 Hanger Bearings

Style 226

Style 226 hanger bearings are used in 226, 326, and 220 hangers, and are manufactured to CEMA dimensional standards. Style 226 hangers and hanger bearings have clearance for bulk materials to pass and are excellent for normal and heavy-duty applications.

Style B Hanger Bearings

Style B

Style B hanger bearings are used in 660 and 670 hangers, and are manufactured to CEMA dimensional standards. Style B hanger bearings utilize a self-aligning ball bearing for lower power consumption and quieter operation. The bearing is sealed to minimize contamination.

Style 216 Screw Conveyor Hanger Bearing

Style 216 Hanger Bearing Diagram
Shaft Dia. A B C D E
(Dia.)
Part Number Weight (Lbs.) •
1” NOT AVAILABLE
1-1/2” 1-15/16” 1-9/16” 2-3/4” 1-3/8” 2-1/4” HGB216112#* 2.0
2” 1-15/16” 1-9/16” 3-3/4” 1-5/8” 3-1/4” HGB2162#* 4.0
2-7/16” 2-15/16” 2-1/4” 4-1/2” 2” 4” HGB2162716#* 9.2
3” 2-15/16” 2-1/4” 5” 2-5/16” 4-1/2” HGB2163#* 10.8
3-7/16” 3-15/16” 3-1/4” 5-1/2” 2-7/16” 4-7/8” HGB2163716#* 15.2
3-15/16” 3-15/16” 3-1/4” 6” 2-11/16” 5-3/8” HGB21631516#* 17.3
4-7/16” 4-15/16” 4-1/4” 7-3/16” 3-1/4” 6-3/16” HGB2164716#* 31.7

* KWS Stock Component     • All weights are based on hard iron.     # Bearing Material (UHMW, Gatke, Hard Iron, Wood, Bronze, Stellite)
Note: Only Hard Iron and Bronze are available in 3-15/15” and 4-7/16”.



Style 226 Screw Conveyor Hanger Bearing

Style 226 Hanger Bearing Diagram
Shaft Dia. A B C D E (Dia.) Part Number Weight (Lbs.) •
1” 1-7/16” 1-1/8” 5/16” 1/2” 1-3/16” HGB2261#* 2
1-1/2” 1-15/16” 1-9/16” 1/2” 9/16” 2-3/16” HGB226112#* 2
2” 1-15/16” 1-9/16” 1/2” 9/16” 2-13/16” HGB2262#* 4
2-7/16” 2-15/16” 2-1/4” 3/4” 3/4” 3-3/16” HGB2262716#* 9
3” 2-15/16” 2-1/4” 3/4” 3/4” 4-1/16” HGB2263#* 11
3-7/16” 3-15/16” 3-1/4” 1-1/4” 3/4” 4-3/4” HGB2263716#* 15
3-15/16” 3-15/16” 3-1/4” 1-1/4” 3/4” 5-1/4” HGB22631516# 17
4-7/16” 4-15/16” 4-1/4” 1-3/4” 3/4” 5-13/16” HGB2264716# 32

• All weights are based on hard iron.     # Bearing Material (Nylatron, UHMW, Gatke, Hard Iron, Wood, Plastech, Bronze, Stellite)     * KWS Stock Component
Note: Only UHMW and Wood are available in the 1” size.



Style B Screw Conveyor Hanger Bearing

Style B Hanger Bearing Diagram

Shaft Dia. A B C Straight Thread Pipe
D
Part Number Weight
1” 1-1/2” 2-1/2” 3-1/8” 3/4” HGBB1 3
1-1/2” 1-15/16” 2-7/8” 4” 3/4” HGBB112 3
2” 1-15/16” 3-1/4” 4-5/8” 3/4” HGBB2 4
2-7/16” 2-5/16” 4” 5-1/2” 1” HGBB2716 7
3” 2-3/8” 4-7/8” 7” 1” HGBB3 15
3-7/16” 2-9/16” 6” 8-3/8” 1-1/2” HGBB3716 21