NTN BEARING MFG.CORP.: Angular Contact Ball Bearings Cylindrical Roller Bearings Flange Block Bearings

English

✖

Home

Stock Categories

Technical Articles

Angular Contact Ball Bearings

Cylindrical Roller Bearings

Flange Block Bearings

Home>Products>Pillow Block Bearings>1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter LINK BELT PU3K31N Pillow Block Bearings

LINK BELT PU3K31N MODELS

Need a CAD or 3D Model?

What is PU3K31N bearing cross reference？

PLUMMER BLOCK PRICE LIST

Contact Now WhatsApp Be Our Agent

1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter LINK BELT PU3K31N Pillow Block Bearings

Name: 1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter LINK BELT PU3K31N Pillow Block Bearings
Brand: LINK BELT
SKU: PU3K31N
Rating: 4.9 (5 reviews)

LINK BELT PU3K31N Bearing SPECIFICATIONS

We work closely with our 1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter LINK BELT PU3K31N Pillow Block Bearings 1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter manufacturing partners to bring 52100 Steel/Bla bearing material: the NTN BEARING MFG.CORP. Uncoated finish/coating: best value to customers.
Brand Name:LINK BELT
Model Number:
PU3K31N
manufacturer upc number::662461022092
bearing material::52100 Steel/Bla
finish/coating::Uncoated
bore type::Round
series::SF
length through bore::2.0313 in
housing width::1.5625 in
duty type::Standard Duty

NTN BEARING MFG.CORP.

NTN BEARING MFG.CORP.China

NTN BEARING MFG.CORP.2020-07-10 09:46:19
Welcome to my shop! Glad to serve you! Please send your question!

Interested In: Price Inspection Certificate Product Specifications Company Profile

1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter LINK BELT PU3K31N Pillow Block Bearings Frequently purchased together

manufacturer upc number::662461022092
bearing material::52100 Steel/Bla
finish/coating::Uncoated
bore type::Round
series::SF
length through bore::2.0313 in
housing width::1.5625 in
duty type::Standard Duty
lubrication type::Lubrication Fitting
mounting type::Four-Bolt Flange
Size (mm):1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter

LINK BELT PU3K31N Pillow Block Bearings Cross References

No.	Brand	B	D	b	K	T	d	a	Da
PU322	LINK BELT	-	34-1/2 in	-	-	-	2-1/2 in	-	-
KPSS224DC	LINK BELT	21 mm	100 mm	-	-	-	-	-	-
KLPSS2E20	LINK BELT	52mm	260mm	-	-	-	190mm	-	-
P3U223H	LINK BELT	-	3.8750 to 4.3750 in	-	-	-	-	-	-
P3U218NK99	LINK BELT	-	-	-	-	-	-	-	-
P3W226E	LINK BELT	-	-	-	-	-	2.4375 in	-	-
PKLB68M100FR	LINK BELT	-	-	-	-	342.9 mm	342.9 mm	-	-
PLB6823RC	LINK BELT	-	-	-	-	-	-	-	-
PELB7890FRCT2	LINK BELT	-	-	-	-	-	-	-	-
PL3Y224N	LINK BELT	31 mm	-	-	-	-	-	-	-
PLB6855FD5C	LINK BELT	-	-	-	-	-	1.1417 in	-	-
PU331K81	LINK BELT	-	140 mm	-	-	-	65 mm	-	-
P3U212JH	LINK BELT	-	5.8750 in	-	-	-	3.7500 in	-	-
PKELB68103FR	LINK BELT	3/4 in	1.5748 in	-	-	-	0.6250 in	-	-
PELB6855FD8	LINK BELT	-	-	-	-	-	2.9375 in	-	-
PLB68128FD5	LINK BELT	3.2 in	-	-	-	-	2.6875 in	-	-
PKLB7880FR	LINK BELT	-	-	-	-	-	2.1250 in	-	-
PLB68115FR	LINK BELT	-	-	-	-	-	3-15/16 in	-	-
PELB78140FR	LINK BELT	-	-	-	-	-	-	-	160 mm
PLB78110FR	LINK BELT	-	3.9368 in	-	-	-	-	-	-
PLB68112FD5	LINK BELT	-	-	-	-	-	1.7500 in	-	-
PELB68127FRC	LINK BELT	2.01 in	5-1/2 to 6.19 i	-	-	-	1.6250 in	-	-
PELB68M100FRC	LINK BELT	-	2.4409 in	-	-	-	-	-	-
PLB78160FRT2	LINK BELT	-	4.2500 in	-	-	-	-	-	-
P3W212E	LINK BELT	1.93 in	6.38 to 7.44 in	-	-	-	2.0000 in	-	-
KPS2M35DC	LINK BELT	3 in	14 in	-	-	-	9 in	-	-
PELB6879FRC	LINK BELT	-	-	-	-	-	1-5/16 in	-	-

6.5 Inch \| 165.1 Millimeter x 0 Inch \| 0 Millimeter x 7.5 Inch \| 190.5 Millimeter LINK BELT PELB68104FRC Pillow Block Bearings	series:Z; Size (mm):6.5 Inch \| 165.1 Millimeter x 0 Inch \| 0 Millimeter x 7.5 Inch \| 190.5 Millimeter ;
7.188 Inch \| 182.575 Millimeter x 0 Inch \| 0 Millimeter x 8.25 Inch \| 209.55 Millimeter LINK BELT PLB68115FR Pillow Block Bearings	d:3-15/16 in; kit type:Bearing Rebuild Kit; series:9000; insert bearing type:Spherical Roller; Size (mm):7.188 Inch \| 182.575 Millimeter x 0 Inch \| 0 Millimeter x 8.25 Inch \| 209.55 Millimeter ;
3.543 Inch \| 89.992 Millimeter x 0 Inch \| 0 Millimeter x 4 Inch \| 101.6 Millimeter LINK BELT PELB7890FRCT2 Pillow Block Bearings	Size (mm):3.543 Inch \| 89.992 Millimeter x 0 Inch \| 0 Millimeter x 4 Inch \| 101.6 Millimeter ;
1.181 Inch \| 30 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.689 Inch \| 42.9 Millimeter LINK BELT KPSS2M30DC Pillow Block Bearings	housing construction:Solid Flange Mount; bearing type:Spherical Roller; bolt circle diameter:12-3/4 in; radial dynamic load capacity:146000 lb; manufacturer catalog number:070747; maximum rpm:1020 RPM; flange mounting type:Four-Bolt Piloted Fl; B:14.8400 in; seal type:Labyrinth with Fling; d:4-15/16 in; Size (mm):1.181 Inch \| 30 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.689 Inch \| 42.9 Millimeter ;
1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter LINK BELT PL3Y224E3 Pillow Block Bearings	construction description:Guardian® Flange; width:0.7000 in; continuous temperature range:-22 to 400°F; pressure tolerance:Ambient; D:2.9530 in; harmonization code:8487900040.US; typical application:Exceptional Bearing; lip material:Labyrinth; misalignment tolerance:0.020 in; Weight:1.09 lbs; Size (mm):1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter ;
2.438 Inch \| 61.925 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3 Inch \| 76.2 Millimeter LINK BELT PB22539E7 Pillow Block Bearings	stud diameter:0.5000 in; radial dynamic load capacity:4470 lb; bearing element:Needle Rollers; roller diameter:1.3750 in; closure type:Sealed; roller shape:Flat; roller width:0.7500 in; stud length:1.2500 in; roller material:Steel; eccentric stud diameter:.5000 in; Size (mm):2.438 Inch \| 61.925 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3 Inch \| 76.2 Millimeter ;
3.188 Inch \| 80.975 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3.75 Inch \| 95.25 Millimeter LINK BELT PKEB22451FH Pillow Block Bearings	typical application:Exceptional Bearing; D:5.3180 in; width:0.7000 in; lip material:Labyrinth; Weight:2.37 lbs; pressure tolerance:Ambient; misalignment tolerance:0.020 in; maximum shaft surface speed:12000 fpm; continuous temperature range:-22 to 400°F; shaft diameter:4.3181 in; Size (mm):3.188 Inch \| 80.975 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3.75 Inch \| 95.25 Millimeter ;
3.938 Inch \| 100.025 Millimeter x 0 Inch \| 0 Millimeter x 4.938 Inch \| 125.425 Millimeter LINK BELT PELB6863FD5C Pillow Block Bearings	D1 ≈:726 mm; Calculation factor e:0.3; G1:47 mm; B:264 mm; b:22.3 mm; Fatigue load limit Pu:830 kN; r1,2 min.:7.5 mm; ra max.:6 mm; d2 ≈:605 mm; Basic static load rating C0:12900 kN; Size (mm):3.938 Inch \| 100.025 Millimeter x 0 Inch \| 0 Millimeter x 4.938 Inch \| 125.425 Millimeter ;
0.75 Inch \| 19.05 Millimeter x 1.125 Inch \| 28.58 Millimeter x 1.313 Inch \| 33.35 Millimeter LINK BELT P3S212E Pillow Block Bearings	Clearance:Standard; Availability:In Stock; Static Load Rating (kN):4.1; B:7mm; Oil Limiting Speed (r/min):16000; D:47mm; d:35mm; Weight:0.03 KGS; SKU:6807vv-nsk; Grease Limiting Speed (r/min):14000; Size (mm):0.75 Inch \| 19.05 Millimeter x 1.125 Inch \| 28.58 Millimeter x 1.313 Inch \| 33.35 Millimeter ;
6.693 Inch \| 170.002 Millimeter x 0 Inch \| 0 Millimeter x 7.063 Inch \| 179.4 Millimeter LINK BELT PELB78170FRT2 Pillow Block Bearings	Cage Type:Steel; B:24mm; Clearance:C3; Weight:0.02 KGS; Availability:In Stock; Dynamic Load Rating (kN):63.7; d:100mm; D:150mm; Limiting Speed Rating (r/min):2600; Fatigue Load Rating (kN):2.04; Size (mm):6.693 Inch \| 170.002 Millimeter x 0 Inch \| 0 Millimeter x 7.063 Inch \| 179.4 Millimeter ;
2.938 Inch \| 74.625 Millimeter x 0 Inch \| 0 Millimeter x 4.5 Inch \| 114.3 Millimeter LINK BELT PELB6947FRC Pillow Block Bearings	expansion type:Non-Expansion Bearin; operating temperature range:Max 250°; base to bore centerline:3.7500 in; duty type:Standard Duty; seal type:Felt Seal; bearing type:Tapered Roller; bolt size:.6250 in; B:4.5000 in; mounting:Four-Bolt Base; replacement bearing:RCI-212; Size (mm):2.938 Inch \| 74.625 Millimeter x 0 Inch \| 0 Millimeter x 4.5 Inch \| 114.3 Millimeter ;
1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter LINK BELT PL3Y224N Pillow Block Bearings	cage material:Polyamide; finish/coating:Uncoated; closure type:Open; series:NU23; internal clearance:C3; B:31 mm; fillet radius:1.5 mm; maximum rpm:10900 RPM; outer ring width:31 mm; flanges:(2) Outer; Size (mm):1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter ;
1.25 Inch \| 31.75 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.688 Inch \| 42.875 Millimeter LINK BELT KLPSS2E20 Pillow Block Bearings	Clearance:Standard; Limiting Speed Rating (r/min):2600; Dynamic Load Rating (kN):475; Weight:0.02 KGS; d:190mm; D:260mm; Reference Speed Rating (r/min):2400; Cage Type:Steel; B:52mm; Fatigue Load Rating (kN):76.5; Size (mm):1.25 Inch \| 31.75 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.688 Inch \| 42.875 Millimeter ;
1.938 Inch \| 49.225 Millimeter x 2.813 Inch \| 71.45 Millimeter x 3.125 Inch \| 79.38 Millimeter LINK BELT PEU331K4 Pillow Block Bearings	operating temperature range:-20 to +250 &de; roller shape:Flat; radial dynamic load capacity:5000 lbs; closure type:Sealed; bearing element:Cylindrical Rollers; d:0.4375 in; series:Heavy Duty Inch CAMR; maximum rpm:2500 rpm; B:0.9375 in; roller material:Chrome Steel; Size (mm):1.938 Inch \| 49.225 Millimeter x 2.813 Inch \| 71.45 Millimeter x 3.125 Inch \| 79.38 Millimeter ;

1.938 Inch | 49.225 Millimeter x 2.594 Inch | 65.888 Millimeter x 3.5 Inch | 88.9 Millimeter LINK BELT PU3K31N Pillow Block Bearings Video

LINK BELT PU3K31N INTERCHANGE

Pillow Block Bearings Part series PU3K31N is a potential replacement for these common bearing part numbers:

NSKPU3K31N
SKFPU3K31N
NTNPU3K31N
FAGPU3K31N
TIMKENPU3K31N
KOYOPU3K31N
NACHIPU3K31N
DODGEPU3K31N

Contact Us

NTN BEARING MFG.CORP.: Address9515 Winona Avenue, Schiller Park, lL 60176, U.S.A.; Phone(Working Time)681-5268; Fax

Send Now

LINK BELT PU3K31N Technical Articles

DPI BEARING PRICE LIST

DPI BEARING PRICE LIST SKF6300 JEM €189.47 CONSOLIDATED BEARINGNJ-2312E M C/4 €77.74 LINK BELTPELB6947FRC €91.26 SKF6301 2ZJEM €173.01 CONSOLIDATED BEARINGNJ-2312E M €177.19 LINK BELTPELB78170FRT2 €77.17...

PLUMMER BLOCK PRICE LIST

PLUMMER BLOCK PRICE LIST TIMKENJM612949-2 $110.07 NTN23220BL1D1C3 $74.22 DODGEWSTU-S2-106RE $10.87 TIMKENJLM508710-2 $134.03 NTN23268BL1KD1C3 $10.89 DODGEWSTU-S2-108RE $198.03 TIMKENJM714210-2 $42.13...

SKF DEEP GROOVE BALL BEARING PRICE LIST

SKF DEEP GROOVE BALL BEARING PRICE LIST Franke75061A €96.53 Franke68733A €62.64 Standard 511.50.4140.001.49.1502 €44.78 Franke71041A €60.81 Franke68460A €38.32 Franke68739A €6.49 Franke68649A €17.39...

Pillow Block Bearings CATEGORIES

Top Products

600 mm x 800 mm x 150 mm FAG 239/600-B-MB Spherical Roller Bearings	SKF 6205 NRJEM Single Row Ball Bearings	QM INDUSTRIES QAAF13A207SET Flange Block Bearings
9.013 Inch \| 228.93 Millimeter x 13.386 Inch \| 340 Millimeter x 4.5 Inch \| 114.3 Millimeter CONSOLID	NTN ucp208d1 Bearing

6.5 Inch \| 165.1 Millimeter x 0 Inch \| 0 Millimeter x 7.5 Inch \| 190.5 Millimeter LINK BELT PELB68104FRC Pillow Block Bearings	series:Z; Size (mm):6.5 Inch \| 165.1 Millimeter x 0 Inch \| 0 Millimeter x 7.5 Inch \| 190.5 Millimeter ;
7.188 Inch \| 182.575 Millimeter x 0 Inch \| 0 Millimeter x 8.25 Inch \| 209.55 Millimeter LINK BELT PLB68115FR Pillow Block Bearings	d:3-15/16 in; kit type:Bearing Rebuild Kit; series:9000; insert bearing type:Spherical Roller; Size (mm):7.188 Inch \| 182.575 Millimeter x 0 Inch \| 0 Millimeter x 8.25 Inch \| 209.55 Millimeter ;
3.543 Inch \| 89.992 Millimeter x 0 Inch \| 0 Millimeter x 4 Inch \| 101.6 Millimeter LINK BELT PELB7890FRCT2 Pillow Block Bearings	Size (mm):3.543 Inch \| 89.992 Millimeter x 0 Inch \| 0 Millimeter x 4 Inch \| 101.6 Millimeter ;
1.181 Inch \| 30 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.689 Inch \| 42.9 Millimeter LINK BELT KPSS2M30DC Pillow Block Bearings	housing construction:Solid Flange Mount; bearing type:Spherical Roller; bolt circle diameter:12-3/4 in; radial dynamic load capacity:146000 lb; manufacturer catalog number:070747; maximum rpm:1020 RPM; flange mounting type:Four-Bolt Piloted Fl; B:14.8400 in; seal type:Labyrinth with Fling; d:4-15/16 in; Size (mm):1.181 Inch \| 30 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.689 Inch \| 42.9 Millimeter ;
1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter LINK BELT PL3Y224E3 Pillow Block Bearings	construction description:Guardian® Flange; width:0.7000 in; continuous temperature range:-22 to 400°F; pressure tolerance:Ambient; D:2.9530 in; harmonization code:8487900040.US; typical application:Exceptional Bearing; lip material:Labyrinth; misalignment tolerance:0.020 in; Weight:1.09 lbs; Size (mm):1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter ;
2.438 Inch \| 61.925 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3 Inch \| 76.2 Millimeter LINK BELT PB22539E7 Pillow Block Bearings	stud diameter:0.5000 in; radial dynamic load capacity:4470 lb; bearing element:Needle Rollers; roller diameter:1.3750 in; closure type:Sealed; roller shape:Flat; roller width:0.7500 in; stud length:1.2500 in; roller material:Steel; eccentric stud diameter:.5000 in; Size (mm):2.438 Inch \| 61.925 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3 Inch \| 76.2 Millimeter ;
3.188 Inch \| 80.975 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3.75 Inch \| 95.25 Millimeter LINK BELT PKEB22451FH Pillow Block Bearings	typical application:Exceptional Bearing; D:5.3180 in; width:0.7000 in; lip material:Labyrinth; Weight:2.37 lbs; pressure tolerance:Ambient; misalignment tolerance:0.020 in; maximum shaft surface speed:12000 fpm; continuous temperature range:-22 to 400°F; shaft diameter:4.3181 in; Size (mm):3.188 Inch \| 80.975 Millimeter x 4.375 Inch \| 111.13 Millimeter x 3.75 Inch \| 95.25 Millimeter ;
3.938 Inch \| 100.025 Millimeter x 0 Inch \| 0 Millimeter x 4.938 Inch \| 125.425 Millimeter LINK BELT PELB6863FD5C Pillow Block Bearings	D1 ≈:726 mm; Calculation factor e:0.3; G1:47 mm; B:264 mm; b:22.3 mm; Fatigue load limit Pu:830 kN; r1,2 min.:7.5 mm; ra max.:6 mm; d2 ≈:605 mm; Basic static load rating C0:12900 kN; Size (mm):3.938 Inch \| 100.025 Millimeter x 0 Inch \| 0 Millimeter x 4.938 Inch \| 125.425 Millimeter ;
0.75 Inch \| 19.05 Millimeter x 1.125 Inch \| 28.58 Millimeter x 1.313 Inch \| 33.35 Millimeter LINK BELT P3S212E Pillow Block Bearings	Clearance:Standard; Availability:In Stock; Static Load Rating (kN):4.1; B:7mm; Oil Limiting Speed (r/min):16000; D:47mm; d:35mm; Weight:0.03 KGS; SKU:6807vv-nsk; Grease Limiting Speed (r/min):14000; Size (mm):0.75 Inch \| 19.05 Millimeter x 1.125 Inch \| 28.58 Millimeter x 1.313 Inch \| 33.35 Millimeter ;
6.693 Inch \| 170.002 Millimeter x 0 Inch \| 0 Millimeter x 7.063 Inch \| 179.4 Millimeter LINK BELT PELB78170FRT2 Pillow Block Bearings	Cage Type:Steel; B:24mm; Clearance:C3; Weight:0.02 KGS; Availability:In Stock; Dynamic Load Rating (kN):63.7; d:100mm; D:150mm; Limiting Speed Rating (r/min):2600; Fatigue Load Rating (kN):2.04; Size (mm):6.693 Inch \| 170.002 Millimeter x 0 Inch \| 0 Millimeter x 7.063 Inch \| 179.4 Millimeter ;
2.938 Inch \| 74.625 Millimeter x 0 Inch \| 0 Millimeter x 4.5 Inch \| 114.3 Millimeter LINK BELT PELB6947FRC Pillow Block Bearings	expansion type:Non-Expansion Bearin; operating temperature range:Max 250°; base to bore centerline:3.7500 in; duty type:Standard Duty; seal type:Felt Seal; bearing type:Tapered Roller; bolt size:.6250 in; B:4.5000 in; mounting:Four-Bolt Base; replacement bearing:RCI-212; Size (mm):2.938 Inch \| 74.625 Millimeter x 0 Inch \| 0 Millimeter x 4.5 Inch \| 114.3 Millimeter ;
1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter LINK BELT PL3Y224N Pillow Block Bearings	cage material:Polyamide; finish/coating:Uncoated; closure type:Open; series:NU23; internal clearance:C3; B:31 mm; fillet radius:1.5 mm; maximum rpm:10900 RPM; outer ring width:31 mm; flanges:(2) Outer; Size (mm):1.5 Inch \| 38.1 Millimeter x 2.219 Inch \| 56.363 Millimeter x 1.938 Inch \| 49.225 Millimeter ;
1.25 Inch \| 31.75 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.688 Inch \| 42.875 Millimeter LINK BELT KLPSS2E20 Pillow Block Bearings	Clearance:Standard; Limiting Speed Rating (r/min):2600; Dynamic Load Rating (kN):475; Weight:0.02 KGS; d:190mm; D:260mm; Reference Speed Rating (r/min):2400; Cage Type:Steel; B:52mm; Fatigue Load Rating (kN):76.5; Size (mm):1.25 Inch \| 31.75 Millimeter x 1.344 Inch \| 34.13 Millimeter x 1.688 Inch \| 42.875 Millimeter ;
1.938 Inch \| 49.225 Millimeter x 2.813 Inch \| 71.45 Millimeter x 3.125 Inch \| 79.38 Millimeter LINK BELT PEU331K4 Pillow Block Bearings	operating temperature range:-20 to +250 &de; roller shape:Flat; radial dynamic load capacity:5000 lbs; closure type:Sealed; bearing element:Cylindrical Rollers; d:0.4375 in; series:Heavy Duty Inch CAMR; maximum rpm:2500 rpm; B:0.9375 in; roller material:Chrome Steel; Size (mm):1.938 Inch \| 49.225 Millimeter x 2.813 Inch \| 71.45 Millimeter x 3.125 Inch \| 79.38 Millimeter ;