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3-Bolt Flange Bracket
Sealmaster FB-31
Sealmaster Mounted Cast Iron Three Bolt Flange Bracket Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - FB-31
FB-31 is also available as
- FB-31$256.96
- FB-31C$313.32
- FB-31T$319.80
- FB-31TC$319.80
Dynamic Load Rating (lb)
7,889
Bore Shape
Straight
Rolling Element
Ball Bearing
Bolt Size (in)
1/2
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
- Felt labyrinth seal and flinger for dry , dusty environment
- 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 , dimple for direct lubrication and anti-rotation
Dimensions
| Dim. | Meaning | in | mm |
|---|---|---|---|
| A | Base to Center Height | 5 3/16 | 131.8 |
| B | 4 | 101.6 | |
| C | Bolt Spacing | 2 3/4 | 69.9 |
| D | Bearing Centerline to Bolt Hole Center | 2 15/16 | 74.6 |
| E | 7 15/32 | 189.7 | |
| F | Bolt Spacing Height Direction | 1 5/8 | 41.3 |
| G | Foot Height | 1/2 | 12.7 |
| H | Overall Height | 2 5/32 | 54.8 |
| J | Length Through Bore | 2 1/32 | 51.6 |
| L | 2 | ||
| M | Housing Width | 4 9/16 | 115.9 |
| N | 3/4 | 19.1 |
Values as printed for FB-31. Verify critical dimensions before ordering.
- Bore Shape
- Straight
- Rolling Element
- Ball Bearing
- Bolt Size (in)
- 1/2
- Overall Width (in)
- 4.56
- Pilot Configuration
- No Pilot
- Overall Length (in)
- 7.47
- Housing Construction
- One Piece
- Overall Height (in)
- 2.16
- Misalignment Type
- Static Only
- Outer Ring Land Profile
- Standard
- Housing Color
- Black
- Bore Size - Inch
- 1.9375Shaft size chart
- Foot Height (in)
- 0.5
- Base to Center Height (in)
- 5.19
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 2.027
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Type (Product Selection)
- Flange, Bracket, Three Bolt
- Housing Style
- Flange Block
- Setscrew Torque (in-lbs)
- 230-300
- Ability to Relubricate
- Yes
- Inner Race Heat Treat Method
- Zone-Hardened
- Housing Coating
- Powder Coated
- Bearing Type
- Standard Duty
- Housing Material
- Cast Iron
- Bolt Spacing Height Direction (in)
- 1.625
- Radial Clearance
- Standard
- Vibration Frequency Inner Ring Defect
- 0.0984
- Fixed vs. Expansion
- Fixed
- Size Code
- 2-115
- Shaft Locking Type
- Set Screw
- Bearing Insert Material
- 52100 Bearing Steel
- Cage Type
- Land Riding Retainer
- End Cap Available
- No
- Dynamic Load Rating (lb)
- 7,889
- Vibration Frequency Fundamental Train
- 0.0068
- Vibration Frequency Roller Spin
- 0.0445
- Maximum Speed (RPM)
- 3550
- Max Operating Temperature (F)
- 220
- Bearing Insert Finish
- Black Oxide
- Lubricant
- Lithium Complex NLGI 2 Grease
- Bolt Spacing (in)
- 2.7500
- Bearing Centerline to Bolt Hole Center (in)
- 2.9375
- Inner Ring Outside Diameter (in)
- 2.469
- Static Load Rating (lb)
- 5,216
- Grease Fitting Thread Size
- 1/8 NPT
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Vibration Frequency Outer Ring Defect
- 0.0683
- Housing Width (in)
- 4.56
- Duty/Series
- Standard
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
- Dynamic Load Rating (N)
- 35,090
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- FB-31
- Mfg. Part Numberi
- 701253
- GDS #i
- GDS-115883
- Categoryi
- 3-Bolt Flange Bracket
- UPCi
- 662461010310
- Inserti
- 2-115
FB-31 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| FB-31This part | Base configuration | $256.96 | |
| FB-31C | Contact seal | $313.32 | View |
| FB-31T | Skwezloc concentric locking collar | $319.80 | View |
| FB-31TC | Skwezloc concentric locking collar, contact seal | $319.80 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 700034 | 2-115 | $153.57 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster FB-31, manufacturer article number 701253. Its UPC is 662461010310.
Related Products
Replaces Legacy Parts
This product is a direct replacement for the following discontinued part numbers.
- 711691Sealmaster FBMH-31Discontinued