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Take-ups
Sealmaster ST-31C
GOLD BRGS BULK MATL
ST-31 is also available as
Series
ST
Dynamic Load Rating (lb)
7,889
Rolling Element
Ball Bearing
Overall Height (in)
4.63
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 with diamond faceted setscrews
- Single lip contact seal
- 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 | 4 1/2 | 114.3 | |
| B | Carriage Bolt Size | 3/4 | 19.1 |
| C | Slot Length | 3 3/8 | 85.7 |
| D | 5 7/8 | 149.2 | |
| F | 3 1/4 | 82.6 | |
| G | Adjusting Screw Square Nut Seat Height | 1 15/16 | 49.2 |
| K | 32 1 9/32 | .6 32.5 | |
| L | Inner Ring Outside Diameter | 2 15/32 | 62.7 |
| N | Slot Spacing | 4 | 101.6 |
| O | 4 5/8 | 117.5 | |
| P | 2 3/16 | 55.6 | |
| R | 2 5/16 | 58.7 | |
| S | 2 3/16 | 55.6 | |
| T | Slot Width | 11/16 |
Values as printed for ST-31, the base part of ST-31C; the options in this part number do not change the housing. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Overall Height (in)
- 4.63
- Overall Length (in)
- 5.88
- Overall Width (in)
- 2.19
- Housing Construction
- One Piece
- Bore Shape
- Straight
- Outer Ring Land Profile
- Standard
- Housing Color
- Black
- Misalignment Type
- Static Only
- Bore Size - Inch
- 1.9375Shaft size chart
- Base to Center Height (in)
- 3.57
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 2.027
- Slot Width (in)
- 0.688
- Housing Type (Product Selection)
- Take-Up Block, Wide Slot
- Seal Type (Product Selection)
- Single Lip Contact Seal
- Slot Length (in)
- 3.38
- Housing Style
- Take-Up Block
- Carriage Bolt Size (in)
- 3/4
- Ability to Relubricate
- Yes
- Adjusting Screw Clearance Hole Diameter (in)
- 1.13
- Adjusting Screw Square Nut Seat Height (in)
- 1.94
- Slot Spacing (in)
- 4
- Inner Race Heat Treat Method
- Zone-Hardened
- Lubricant
- Lithium Complex NLGI 2 Grease
- Vibration Frequency Inner Ring Defect
- 0.0984
- Bearing Insert Material
- 52100 Bearing Steel
- Vibration Frequency Outer Ring Defect
- 0.0683
- Vibration Frequency Fundamental Train
- 0.0068
- Radial Clearance
- Standard
- Bearing Insert Finish
- Black Oxide
- Shaft Locking Type
- Set Screw
- Bearing Type
- Standard Duty
- Vibration Frequency Roller Spin
- 0.0445
- Max Operating Temperature (F)
- 220
- Centerline to Outermost Bearing Face (in)
- 1.281
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Housing Material
- Cast Iron
- Grease Fitting Thread Size
- 1/8 NPT
- Dynamic Load Rating (lb)
- 7,889
- Fixed vs. Expansion
- Fixed
- Inner Ring Outside Diameter (in)
- 2.469
- Maximum Speed (RPM)
- 3550
- Cage Type
- Land Riding Retainer
- Size Code
- 2-115
- Static Load Rating (lb)
- 5,216
- Housing Coating
- Powder Coated
- End Cap Available
- No
- 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
- ST-31C
- Mfg. Part Numberi
- 703712
- GDS #i
- GDS-116439
- Categoryi
- Take-ups
- UPCi
- 662461024126
- Seriesi
- ST
- Inserti
- 2-115C
ST-31 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| ST-31 | Base configuration | $321.77 | View |
| ST-31CThis part | Contact seal | $355.01 | |
| ST-31T | Skwezloc concentric locking collar | $362.30 | View |
| ST-31 HI | High-performance high temperature | $518.99 | View |
| ST-31 HT | High temperature | $456.94 | 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 ST-31C, manufacturer article number 703712. Its UPC is 662461024126.
