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Square Flange
Sealmaster SF-20RT
GEN GOLD SKWEZLOC
SF-20 is also available as
Dynamic Load Rating (lb)
4,381
Rolling Element
Ball Bearing
Bore Shape
Straight
Overall Width (in)
4.25
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
- Skwezloc® concentric locking for near perfect concentricity
- Felt labyrinth seal and flinger for dry and 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 and dimple for direct lubrication and anti-rotation
Dimensions
| Dim. | Meaning | in | mm |
|---|---|---|---|
| A | Overall Length | 4 1/4 | 108.0 |
| D | 1 11/64 | 29.8 | |
| G | Foot Height | 17/32 | 13.5 |
| H | 1 5/8 | 41.3 | |
| J | 1 9/16 | 39.7 | |
| L | 2 3/16 | 55.6 | |
| M | 3 7/32 | 81.8 |
Values as printed for SF-20RT. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Overall Width (in)
- 4.25
- Bolt Size (in)
- 7/16
- Pilot Configuration
- No Pilot
- Overall Length (in)
- 4.25
- Overall Height (in)
- 1.67
- Housing Construction
- One Piece
- Misalignment Type
- Static Only
- Housing Color
- Black
- Bore Size - Inch
- 1.25Shaft size chart
- Outer Ring Land Profile
- Standard
- Foot Height (in)
- 0.53
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.61
- Housing Type (Product Selection)
- Flange, Four Bolt
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Style
- Flange Block
- Inner Race Heat Treat Method
- Zone-Hardened
- Ability to Relubricate
- Yes
- Setscrew Torque (in-lbs)
- 85
- Locking Collar Outside Diameter (in)
- 2.23
- Operating Temperature Range (F)
- -20 to 220
- Cage Type
- Land Riding Retainer
- Housing Backside Inner Diameter
- 2.88
- Maximum Speed (RPM)
- 7600
- Max Operating Temperature (F)
- 220
- Vibration Frequency Fundamental Train
- 0.0066
- Lubricant
- Lithium Complex NLGI 2 Grease
- Radial Clearance
- Standard
- Housing Material
- Cast Iron
- Inner Ring Outside Diameter (in)
- 1.594
- Size Code
- 2-13
- Grease Fitting Thread Size
- 1/4-28
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Bearing Type
- Standard Duty
- Vibration Frequency Roller Spin
- 0.0385
- Bearing Insert Material
- 52100 Bearing Steel
- Housing Coating
- Powder Coated
- Bolt Spacing (in)
- 3.2500
- Fixed vs. Expansion
- Fixed
- Shaft Locking Type
- Concentric
- End Cap Available
- No
- Static Load Rating (lb)
- 2,567
- Bearing Insert Finish
- Black Oxide
- Vibration Frequency Inner Ring Defect
- 0.0905
- Dynamic Load Rating (lb)
- 4,381
- Vibration Frequency Outer Ring Defect
- 0.0595
- Duty/Series
- Standard
- Optional Seal
- Contact
- Dynamic Load Rating (N)
- 19,487
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- SF-20RT
- Mfg. Part Numberi
- 717982
- GDS #i
- GDS-118671
- Categoryi
- Square Flange
- UPCi
- 662461099032
- Inserti
- 1-14T
SF-20 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| SF-20 | Base configuration | $182.46 | View |
| SF-20C | Contact seal | $136.85 | View |
| SF-20R | Reduced housing envelope | $177.42 | View |
| SF-20RC | Reduced housing envelope, contact seal | $205.63 | View |
| SF-20RTThis part | Reduced housing envelope, Skwezloc concentric locking collar | $222.37 | |
| SF-20T | Skwezloc concentric locking collar | $172.96 | View |
| SF-20TC | Skwezloc concentric locking collar, contact seal | $363.53 | View |
| SF-20 HI | High-performance high temperature | $976.41 | View |
| SF-20 HT | High temperature | $300.33 | View |
| SF-20H RM | High-performance seal, Reduced maintenance | $879.27 | View |
| SF-20T CXU | Skwezloc concentric locking collar, Air-handling housing fit, noise tested | $204.99 | View |
| SF-20T HT | Skwezloc concentric locking collar, High temperature | $910.19 | View |
| SF-20T RM | Skwezloc concentric locking collar, Reduced maintenance | $1,023.21 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 711030 | 1-14T | $166.44 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster SF-20RT, manufacturer article number 717982. Its UPC is 662461099032.
