Pillow Blocks
Sealmaster MP-55
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - MP-55
MP-55 is also available as
- MP-55$1,198.85
- MP-55C$1,188.48
- MP-55 HT$1,904.97
Dynamic Load Rating (lb)
21,566
Housing Base
Solid
Rolling Element
Ball Bearing
Bore Shape
Straight
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
- 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 | 4 | 101.6 | |
| B | Overall Length | 15 | 381.0 |
| C | Bolt Spacing Min | 9 5/8 | 244.5 |
| C (max) | Bolt Spacing Max | 12 5/8 | 320.7 |
| D | Base Width | 4 3/8 | 111.1 |
| G | Foot Height | 1 5/16 | 33.3 |
| H | Overall Height | 8 1/4 | 209.6 |
| J | Length Through Bore | 3 25/32 | 96.0 |
| K | Centerline to Outermost Bearing Face | 2 7/32 | 56.4 |
| L | Inner Ring Outside Diameter | 4 25/64 | 111.5 |
Values as printed for MP-55. Verify critical dimensions before ordering.
- Housing Base
- Solid
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Base Width (in)
- 4.38
- Overall Width (in)
- 4.38
- Overall Height (in)
- 8.25
- Overall Length (in)
- 15
- Housing Construction
- One Piece
- Bolt Size (in)
- 7/8
- Outer Ring Land Profile
- Standard
- Bore Size - Inch
- 3.4375Shaft size chart
- Housing Color
- Black
- Misalignment Type
- Static Only
- Base to Center Height (in)
- 4.0000
- Foot Height (in)
- 1.31
- Cage Material
- Brass
- Length Through Bore (in)
- 3.781
- Housing Type (Product Selection)
- Pillow Block, Two Bolt
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Style
- Pillow Block
- Inner Race Heat Treat Method
- Zone-Hardened
- Ability to Relubricate
- Yes
- Setscrew Torque (in-lbs)
- 500-650
- Base Length (in)
- 15.00
- Size Code
- 2-38
- Bearing Type
- Medium Duty
- Static Load Rating (lb)
- 16,301
- Bolt Spacing Min (in)
- 9.63
- Bearing Insert Material
- 52100 Bearing Steel
- Cage Type
- Land Riding Retainer
- Shaft Locking Type
- Set Screw
- Lubricant
- Lithium Complex NLGI 2 Grease
- Housing Coating
- Powder Coated
- Dynamic Load Rating (lb)
- 21,566
- Centerline to Outermost Bearing Face (in)
- 2.219
- Grease Fitting Thread Size
- 1/4 NPT
- Bearing Insert Finish
- Black Oxide
- End Cap Available
- No
- Vibration Frequency Roller Spin
- 0.0454
- Fixed vs. Expansion
- Fixed
- Radial Clearance
- Standard
- Vibration Frequency Inner Ring Defect
- 0.0981
- Inner Ring Outside Diameter (in)
- 4.391
- Maximum Speed (RPM)
- 2000
- Vibration Frequency Outer Ring Defect
- 0.0685
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Housing Material
- Cast Iron
- Vibration Frequency Fundamental Train
- 0.0069
- Bolt Spacing Max (in)
- 12.63
- Max Operating Temperature (F)
- 220
- Duty/Series
- Medium
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
- Dynamic Load Rating (N)
- 95,926
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- MP-55
- Mfg. Part Numberi
- 701885
- GDS #i
- GDS-115972
- Categoryi
- Pillow Blocks
- UPCi
- 662461013977
- Inserti
- 3-37
MP-55 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| MP-55This part | Base configuration | $1,198.85 | |
| MP-55C | Contact seal | $1,188.48 | View |
| MP-55 HT | High temperature | $1,904.97 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 700097 | 3-37 | $1,077.89 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster MP-55, manufacturer article number 701885. Its UPC is 662461013977.
