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Home / Categories / Bearings / Mounted / Mounted Ball Bearings / Pillow Blocks / NP-31C RM
Product image 1
Pillow Blocks

Sealmaster NP-31C RM

GOLD BRGS REDUCED MAINTENANCE

BrandSealmaster
Part Number715918
GDS #GDS-118525
Dynamic Load Rating (lb)
7,889 lb
Bore Size - Inch
1.9375
Overall Width (in)
2.38 in
Housing Type (Product Selection)
Pillow Block, Two Bolt

Need help confirming fit? Send us the current part number, shaft size, housing photo, or equipment model.

Product Overview

  • Powder coated epoxy cast iron housing with extended inner ring bearings
  • Zone hardened inner ring with 120° spacing setscrew locking with diamond faceted setscrews
  • Single lip contact
  • Unique land riding retainer design provides superior pocket clearance that allows for 360° grease circulation around the rolling elements resulting in better retained and utilized lubrication.
  • Sealmaster® exclusive lock pin and dimple for direct lubrication and anti-rotation
  • Reduced maintenance design with plug and includes Sealmaster® Tapered Lands ensures that lubricant will be easily redirected back to the raceway.
Bore Size - Inch
1.9375
Overall Width (in)
2.38 in
Housing Type (Product Selection)
Pillow Block, Two Bolt
Base Width (in)
2.38 in
Seal Type (Product Selection)
Felt Labyrinth Seal
Overall Length (in)
8.13 in
Overall Height (in)
4.56 in
Bolt Size (in)
5/8 in
Bore Diameter (in)
1.9375 in
Foot Height (in)
0.75 in
Base to Center Height (in)
2.2500 in
Length Through Bore (in)
2.031 in
Bolt Spacing Min (in)
6 in
Bolt Spacing Max (in)
6.5 in
Centerline to Outermost Bearing Face (in)
1.281 in
Rolling Element
Ball Bearing
Housing Base
Solid
Bore Shape
Straight
Housing Construction
One Piece
Misalignment Type
Static Only
Options
Reduced Maintenance - Lubed for Life
Housing Color
Black
Outer Ring Land Profile
Tapered Lands
Cage Material
PPS - Polyphenylene Sulfide
Housing Type
Pillow Block, Two Bolt
Seal Type
Felt Labyrinth Seal
Housing Style
Pillow Block
Ability to Relubricate
No
Inner Race Heat Treat Method
Zone-Hardened
Radial Clearance
Standard
Bearing Insert Material
52100 Bearing Steel
Base Length (in)
8.13 in
Vibration Frequency Outer Ring Defect
0.0683 cps
Shaft Locking Type
Set Screw
Vibration Frequency Roller Spin
0.0445 cps
Vibration Frequency Fundamental Train
0.0068 cps
Lubricant
Lithium Complex NLGI 2 Grease
Maximum Speed (RPM)
3550 rpm
Bearing Type
Standard Duty
Vibration Frequency Inner Ring Defect
0.0984 cps
Inner Ring Outside Diameter (in)
2.469 in
Housing Coating
Powder Coated
Static Load Rating (lb)
5,216 lb
Fixed vs. Expansion
Fixed
Misalignment Capability
±2.0° Misalignment - Static Only
Grease Fitting Thread Size
1/8 NPT
Bearing Insert Finish
Black Oxide
Housing Material
Cast Iron
Max Operating Temperature (F)
220 °F
Cage Type
Land Riding Retainer
End Cap Available
No
Size Code
2-115
Dynamic Load Rating (lb)
7,889 lb

Always verify dimensions, load ratings, material, and seal type before ordering.

BrandiManufacturer or product brand
Sealmaster
Mfg. Catalog NumberiManufacturer catalog number
NP-31C RM
Mfg. Part NumberiManufacturer part number
715918
GDS #iGDS internal part number
GDS-118525
CategoryiCatalog classification
Pillow Blocks
UPCiUniversal Product Code
662461333822
InsertiPart number of the bearing insert supplied with this unit
2-115C RM
Country of OriginiWhere this part is manufactured
United States of America

Documents & Support

  • PDFCatalog PageView
  • PDFInstallation ManualView
  • 3D/2D CAD Model (view/download)View

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Price Each
$372.45
Available
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