NTN BEARING MANUFACTURING DE MEXICO,S.A.DE C.V.: 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>Spherical Roller Bearings>1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings

SKF 22208 E/C4 MODELS

Need a CAD or 3D Model?

What is 22208 E/C4 bearing cross reference？

Contact Now WhatsApp Be Our Agent

1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings

Name: 1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings
Brand: SKF
SKU: 22208 E/C4
Rating: 4.9 (5 reviews)

SKF 22208 E/C4 Bearing SPECIFICATIONS

Find the discount 1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings online you 1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter need . We offer ... If you check NTN BEARING MANUFACTURING DE MEXICO,S.A.DE C.V. 374000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 out our large selection of 1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings once .
Brand Name:SKF
Model Number:
22208 E/C4
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:96900 lbf
d:7.0000 in
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:374000 lbf
Cone Part Number:EE222070
Ab - Cage-Cone Frontface Clearance:0.12 in
Cg - Geometry Factor:0.136
Series:222000
a - Effective Center Location4:-0.65 in

NTN BEARING MANUFACTURING DE MEXICO,S.A.DE C.V.

NTN BEARING MANUFACTURING DE MEXICO,S.A.DE C.V.China

NTN BEARING MANUFACTURING DE MEXICO,S.A.DE C.V.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

1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings Codes and sizes

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:96900 lbf
d:7.0000 in
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:374000 lbf
Cone Part Number:EE222070
Ab - Cage-Cone Frontface Clearance:0.12 in
Cg - Geometry Factor:0.136
Series:222000
a - Effective Center Location4:-0.65 in
Cage Type:Stamped Steel
Design Units:Imperial
Size (mm):1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter

SKF 22208 E/C4 1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings Product Features

No.	Brand	D	C	B	A	E	d	S	E1
22330 CCK/C3W33	SKF	-	-	-	-	-	140 mm	-	-
22234 CC/C3W33	SKF	-	-	-	-	-	-	-	-
24136 CCK30/C3W33	SKF	2.4410 in	22.244 in	-	0.4720 in	20.433 in	-	-	17.402 in
22308 E/C4	SKF	-	-	-	-	-	-	-	-
22206 EK	SKF	-	-	-	-	-	-	-	-
22217KCJW33	TIMKEN	-	-	-	-	-	-	-	-
23124 CC/C3W33	SKF	32 mm	-	-	-	-	-	-	-
23220 CC/C3W33	SKF	-	-	-	-	-	-	-	-
23026CJW33	TIMKEN	-	-	-	-	-	-	-	-
23940 CC/W33	SKF	215	-	-	-	-	-	-	-
23132 CCK/W33	SKF	-	-	-	-	-	35	-	-
452324 M2/W502	SKF	8.5625 in	-	-	-	-	-	-	-
24030 CC/C3W33	SKF	-	-	-	-	-	65 mm	-	-
22314 EK/C3	SKF	-	-	-	-	-	7.9060 in	-	-
21317 E/C3	SKF	-	-	-	-	-	-	-	-
22330 CCK/W33	SKF	-	-	-	-	-	-	-	-
24096 ECA/C3W33	SKF	-	-	-	-	-	-	-	-
21307 CC/C3	SKF	-	-	-	-	-	-	-	-
22215 E/C4	SKF	-	-	-	-	-	-	-	-
22328 CCK/W33	SKF	-	-	-	-	-	-	-	-
21315 EK/C3	SKF	-	-	-	-	-	-	-	-
22332 CCK/W33	SKF	-	-	-	-	-	55	-	-
23038 CCK/C3W33	SKF	-	-	-	-	-	-	-	-
23130 CCK/C3W33	SKF	-	-	-	-	-	-	-	-
23226 CC/C3W33	SKF	-	-	-	-	-	-	-	-
23134 CCK/W33	SKF	241.300 mm	-	-	-	-	149.225 mm	-	-

160 mm x 290 mm x 104 mm SKF 23232 CCK/W33 Spherical Roller Bearings	Seal:Nitrile; d:115; Accessory:With steel plate cov; Bearing Unit, Type:Take-Up Type; Unit Body Material:Cast Iron; Machining:No; Unit, Type:Insert Bearing Unit; Basic Load Rating, Static Rating(N):214000; Stroke:No; Size (mm):160 mm x 290 mm x 104 mm ;
140 mm x 210 mm x 69 mm SKF 24028 CC/W33 Spherical Roller Bearings	Number of Raceway Ring Rows:Single Row; Load Direction:Radial; Specifications/Environment:Standard; Bearing Style:Rubber Sealed; Rolling Element Material:Steel; Basic Dynamic Load Rating(N):72500; d:80; Type:Ball; Size Standards:Metric System; Inner/Outer Ring Material:Steel; Size (mm):140 mm x 210 mm x 69 mm ;
30 mm x 72 mm x 19 mm SKF 21306 CC Spherical Roller Bearings	C0 - Static Radial Rating:214000 lbf; da - Cone Frontface Backing Diameter:9.33 in; C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:215000 lbf; R - Cone Backface To Clear Radius3:0.13 in; K - Factor8:1.83; Cone Part Number:LM245833; Design Units:Imperial; G2 - Heat Generation Factor (Rib-Roller End):187.4; Ca90 - Dynamic Thrust Rating (90 million revolutions)7:17500 lbf; C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:55700 lbf;
4.724 Inch \| 120 Millimeter x 7.874 Inch \| 200 Millimeter x 2.441 Inch \| 62 Millimeter SKF 23124 CC/C3W33 Spherical Roller Bearings	ra (max):0.3 mm; Limiting Speed - Grease:15,000 rpm; D:32 mm; Enclosure:Double Seal; Static Load Rating:2,840 N; Radial Clearance:0.011 to 0.025 mm; Configuration:Single Row; Da (max):30 mm; Bore Type:Cylindrical Bore; da (min):17 mm; Size (mm):4.724 Inch \| 120 Millimeter x 7.874 Inch \| 200 Millimeter x 2.441 Inch \| 62 Millimeter ;
9.449 Inch \| 240 Millimeter x 19.685 Inch \| 500 Millimeter x 6.102 Inch \| 155 Millimeter SKF 22348 CCK/C3W33 Spherical Roller Bearings	Bearing Unit, Type:Round flange shape; Diameter series symbol:Medium Load; Rolling Element Material:Bearing Steel; Unit, Type:Insert Bearing Unit; Machining:No; Days to Ship:Quote; Stroke:No; Unit Body Material:Cast Iron; d:20; Size (mm):9.449 Inch \| 240 Millimeter x 19.685 Inch \| 500 Millimeter x 6.102 Inch \| 155 Millimeter ;
2.953 Inch \| 75 Millimeter x 6.299 Inch \| 160 Millimeter x 1.457 Inch \| 37 Millimeter SKF 21315 EK/C3 Spherical Roller Bearings	Type:Bearings with Housin; Bearing Retained:Yes (with retaining; Housing Material:1045 Carbon Steel; Holder Surface Treatment:Electroless Nickel P; Lateral Width L(mm):54; Height Indication:Height Configurable; Bearing Part Number:6004; Shape:Bottom Mount; Number of Bearings:Single; Size (mm):2.953 Inch \| 75 Millimeter x 6.299 Inch \| 160 Millimeter x 1.457 Inch \| 37 Millimeter ;
6.299 Inch \| 160 Millimeter x 13.386 Inch \| 340 Millimeter x 4.488 Inch \| 114 Millimeter SKF 22332 CC/C3W33 Spherical Roller Bearings	Locknut:AN-16; Series:222K; S:0.666 in; Bearing Number:22216K; B2:2.366 in; Lockwasher and Lockplates:W-16; Sleeve:S-16; Taper:1:12; Diameter d :2 11/16 in; Tolerance1:-0.004 in; Size (mm):6.299 Inch \| 160 Millimeter x 13.386 Inch \| 340 Millimeter x 4.488 Inch \| 114 Millimeter ;
120 mm x 215 mm x 76 mm SKF 23224 CC/W33 Spherical Roller Bearings	d:30; Surface Treatment:Not Provided; Volume Discount:Available; Material Bearing:52100 Bearing Steel; Unit Body Material:Cast Iron Class No.3; Bearing Unit, Type:Square Flanged Type; Days to Ship:6 Days or more; Basic Load Rating Cor (Static)(N):11300; Size (mm):120 mm x 215 mm x 76 mm ;
1.772 Inch \| 45 Millimeter x 3.937 Inch \| 100 Millimeter x 1.417 Inch \| 36 Millimeter SKF 22309 EK/C3 Spherical Roller Bearings	Seal Type:Kevlar Packing Seal; Dimension L :32-3/4 in; Dimension M :8-3/4 in; Bearing Number:LSE715BR; Bolt Size:4 x 1-1/2; Housing Width:6.8 in; Bearing UPC:013992027566; Shaft Size:7-15/16 in; Cr - Dynamic Load Rating:136576 lbf; Support Type:Four-Bolt Plummer Bl; Size (mm):1.772 Inch \| 45 Millimeter x 3.937 Inch \| 100 Millimeter x 1.417 Inch \| 36 Millimeter ;
2.362 Inch \| 60 Millimeter x 4.331 Inch \| 110 Millimeter x 1.102 Inch \| 28 Millimeter SKF 22212 EK/C3 Spherical Roller Bearings	C0r - Static Load Rating:0.43 kN; Bore Size d:5 mm; Cr - Dynamic Load Rating:1.1 kN; Radius Rs min:0.200 mm; Grease Limiting Speed:50000 rpm; Outside Diameter D:13.000 mm; Outside Ring Width B:4.000 mm; Oil Limiting Speed:59000 rpm; Features:Open; Weight:0.0021 Kg; Size (mm):2.362 Inch \| 60 Millimeter x 4.331 Inch \| 110 Millimeter x 1.102 Inch \| 28 Millimeter ;
5.906 Inch \| 150 Millimeter x 8.858 Inch \| 225 Millimeter x 2.953 Inch \| 75 Millimeter SKF 24030 CC/C3W33 Spherical Roller Bearings	Bearing Weight:0.435 Kg; Cage Type:CR - Phenolic Outer; Limiting Speed (Grease):11400 rpm; Ce - Dynamic Radial Rating1:37700 N; do - Ball Diameter:10.318750 mm; Design Units:METRIC; Da - Outer Ring Backing Diameter:93.200 mm; d:65 mm; Bearing Width:18 mm; Contact Angle:25 º; Size (mm):5.906 Inch \| 150 Millimeter x 8.858 Inch \| 225 Millimeter x 2.953 Inch \| 75 Millimeter ;
150 mm x 225 mm x 56 mm SKF 23030 CCK/W33 Spherical Roller Bearings	I.D.(Ø):25; Raceway Ring Shape:Cylindrical Roller; Material Symbol:No; Clearance sign:No; Symbols of Lubrication Amount:No; Precision (JIS):Grade 0; Retainer Type:Punching; Number of Raceway Ring Rows:Single Row; Outer Ring Type:Flat; Size (mm):150 mm x 225 mm x 56 mm ;
100 mm x 165 mm x 52 mm SKF 23120 CC/W33 Spherical Roller Bearings	Type:Bearings with Housin; Bearing Retained:Yes (with retaining; Housing Material:[Aluminum Alloy] Alu; Shape:T-Shaped; Lateral Width L(mm):70; Bearing Part Number:6003; Seals:VV (Non-Contact Rubb; Height Indication:Height Selection; Size (mm):100 mm x 165 mm x 52 mm ;
4.724 Inch \| 120 Millimeter x 7.087 Inch \| 180 Millimeter x 1.811 Inch \| 46 Millimeter SKF 23024 CCK/C3W33 Spherical Roller Bearings	Bearing Used:Deep Groove Ball Bea; Number of Bearings:Single; Flange Shape:Round Type; Seals:ZZ (Double Shield); Shape:Flange Type; Bearing Part Number:6208; Type:Bearings with Housin; Width T(mm):27; Bearing Material:[Steel] Steel; Size (mm):4.724 Inch \| 120 Millimeter x 7.087 Inch \| 180 Millimeter x 1.811 Inch \| 46 Millimeter ;

1.575 Inch | 40 Millimeter x 3.15 Inch | 80 Millimeter x 0.906 Inch | 23 Millimeter SKF 22208 E/C4 Spherical Roller Bearings Video

SKF 22208 E/C4 INTERCHANGE

Spherical Roller Bearings Part series 22208 E/C4 is a potential replacement for these common bearing part numbers:

NSK22208 E/C4
SKF22208 E/C4
NTN22208 E/C4
FAG22208 E/C4
TIMKEN22208 E/C4
KOYO22208 E/C4
NACHI22208 E/C4
DODGE22208 E/C4

Contact Us

NTN BEARING MANUFACTURING DE MEXICO,S.A.DE C.V.: AddressCircuito Progreso No.120, Industrial Park of Automotive Logistics (PILA), C.P. 2040, Aguascalientes,; Phone(Working Time)922-5264; Fax

Send Now

SKF 22208 E/C4 Technical Articles

skf select bearing dimensions tolerances

Skf Ball Bearing Size Chart Mm High Performance SKF C 2219 K * bearing - Bearing Home. Bearing Handbook for Electric Motors. Selected calculations. NSK 54218U Bearings NSK 54218U SKF Archives | Bearing TipsSizing and selecting bearings with...

skf bearings for sale cad model

SKF Bearings - Deep Groove, Precision, Spherical RollersBuy SKF Products from Quality Bearings Online Ltd, Full Range Available Online, Products In Stock, Same Day Despatch, All Orders Shipped DHL SKF products for sale | eBayResults 1 - 24 of 313038...

nsk bearing price list catalog

NSK SP - Bearing sales CorporationAs a result, NSK's precision bearings are also used in a wide variety of industries, such as contact surface pressure and slip rate generated during high speed operations Table 6.2 lists the brand names and...

Spherical Roller Bearings CATEGORIES

Top Products

ISOSTATIC CB-2329-24 Sleeve Bearings	SKF 310 NA/C3L Single Row Ball Bearings	BEARINGS LIMITED ER24 Mounted Units & Inserts
1.772 Inch \| 45 Millimeter x 3.937 Inch \| 100 Millimeter x 0.984 Inch \| 25 Millimeter CONSOLIDATED B	NTN 6203lb Bearing

160 mm x 290 mm x 104 mm SKF 23232 CCK/W33 Spherical Roller Bearings	Seal:Nitrile; d:115; Accessory:With steel plate cov; Bearing Unit, Type:Take-Up Type; Unit Body Material:Cast Iron; Machining:No; Unit, Type:Insert Bearing Unit; Basic Load Rating, Static Rating(N):214000; Stroke:No; Size (mm):160 mm x 290 mm x 104 mm ;
140 mm x 210 mm x 69 mm SKF 24028 CC/W33 Spherical Roller Bearings	Number of Raceway Ring Rows:Single Row; Load Direction:Radial; Specifications/Environment:Standard; Bearing Style:Rubber Sealed; Rolling Element Material:Steel; Basic Dynamic Load Rating(N):72500; d:80; Type:Ball; Size Standards:Metric System; Inner/Outer Ring Material:Steel; Size (mm):140 mm x 210 mm x 69 mm ;
30 mm x 72 mm x 19 mm SKF 21306 CC Spherical Roller Bearings	C0 - Static Radial Rating:214000 lbf; da - Cone Frontface Backing Diameter:9.33 in; C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:215000 lbf; R - Cone Backface To Clear Radius3:0.13 in; K - Factor8:1.83; Cone Part Number:LM245833; Design Units:Imperial; G2 - Heat Generation Factor (Rib-Roller End):187.4; Ca90 - Dynamic Thrust Rating (90 million revolutions)7:17500 lbf; C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:55700 lbf;
4.724 Inch \| 120 Millimeter x 7.874 Inch \| 200 Millimeter x 2.441 Inch \| 62 Millimeter SKF 23124 CC/C3W33 Spherical Roller Bearings	ra (max):0.3 mm; Limiting Speed - Grease:15,000 rpm; D:32 mm; Enclosure:Double Seal; Static Load Rating:2,840 N; Radial Clearance:0.011 to 0.025 mm; Configuration:Single Row; Da (max):30 mm; Bore Type:Cylindrical Bore; da (min):17 mm; Size (mm):4.724 Inch \| 120 Millimeter x 7.874 Inch \| 200 Millimeter x 2.441 Inch \| 62 Millimeter ;
9.449 Inch \| 240 Millimeter x 19.685 Inch \| 500 Millimeter x 6.102 Inch \| 155 Millimeter SKF 22348 CCK/C3W33 Spherical Roller Bearings	Bearing Unit, Type:Round flange shape; Diameter series symbol:Medium Load; Rolling Element Material:Bearing Steel; Unit, Type:Insert Bearing Unit; Machining:No; Days to Ship:Quote; Stroke:No; Unit Body Material:Cast Iron; d:20; Size (mm):9.449 Inch \| 240 Millimeter x 19.685 Inch \| 500 Millimeter x 6.102 Inch \| 155 Millimeter ;
2.953 Inch \| 75 Millimeter x 6.299 Inch \| 160 Millimeter x 1.457 Inch \| 37 Millimeter SKF 21315 EK/C3 Spherical Roller Bearings	Type:Bearings with Housin; Bearing Retained:Yes (with retaining; Housing Material:1045 Carbon Steel; Holder Surface Treatment:Electroless Nickel P; Lateral Width L(mm):54; Height Indication:Height Configurable; Bearing Part Number:6004; Shape:Bottom Mount; Number of Bearings:Single; Size (mm):2.953 Inch \| 75 Millimeter x 6.299 Inch \| 160 Millimeter x 1.457 Inch \| 37 Millimeter ;
6.299 Inch \| 160 Millimeter x 13.386 Inch \| 340 Millimeter x 4.488 Inch \| 114 Millimeter SKF 22332 CC/C3W33 Spherical Roller Bearings	Locknut:AN-16; Series:222K; S:0.666 in; Bearing Number:22216K; B2:2.366 in; Lockwasher and Lockplates:W-16; Sleeve:S-16; Taper:1:12; Diameter d :2 11/16 in; Tolerance1:-0.004 in; Size (mm):6.299 Inch \| 160 Millimeter x 13.386 Inch \| 340 Millimeter x 4.488 Inch \| 114 Millimeter ;
120 mm x 215 mm x 76 mm SKF 23224 CC/W33 Spherical Roller Bearings	d:30; Surface Treatment:Not Provided; Volume Discount:Available; Material Bearing:52100 Bearing Steel; Unit Body Material:Cast Iron Class No.3; Bearing Unit, Type:Square Flanged Type; Days to Ship:6 Days or more; Basic Load Rating Cor (Static)(N):11300; Size (mm):120 mm x 215 mm x 76 mm ;
1.772 Inch \| 45 Millimeter x 3.937 Inch \| 100 Millimeter x 1.417 Inch \| 36 Millimeter SKF 22309 EK/C3 Spherical Roller Bearings	Seal Type:Kevlar Packing Seal; Dimension L :32-3/4 in; Dimension M :8-3/4 in; Bearing Number:LSE715BR; Bolt Size:4 x 1-1/2; Housing Width:6.8 in; Bearing UPC:013992027566; Shaft Size:7-15/16 in; Cr - Dynamic Load Rating:136576 lbf; Support Type:Four-Bolt Plummer Bl; Size (mm):1.772 Inch \| 45 Millimeter x 3.937 Inch \| 100 Millimeter x 1.417 Inch \| 36 Millimeter ;
2.362 Inch \| 60 Millimeter x 4.331 Inch \| 110 Millimeter x 1.102 Inch \| 28 Millimeter SKF 22212 EK/C3 Spherical Roller Bearings	C0r - Static Load Rating:0.43 kN; Bore Size d:5 mm; Cr - Dynamic Load Rating:1.1 kN; Radius Rs min:0.200 mm; Grease Limiting Speed:50000 rpm; Outside Diameter D:13.000 mm; Outside Ring Width B:4.000 mm; Oil Limiting Speed:59000 rpm; Features:Open; Weight:0.0021 Kg; Size (mm):2.362 Inch \| 60 Millimeter x 4.331 Inch \| 110 Millimeter x 1.102 Inch \| 28 Millimeter ;
5.906 Inch \| 150 Millimeter x 8.858 Inch \| 225 Millimeter x 2.953 Inch \| 75 Millimeter SKF 24030 CC/C3W33 Spherical Roller Bearings	Bearing Weight:0.435 Kg; Cage Type:CR - Phenolic Outer; Limiting Speed (Grease):11400 rpm; Ce - Dynamic Radial Rating1:37700 N; do - Ball Diameter:10.318750 mm; Design Units:METRIC; Da - Outer Ring Backing Diameter:93.200 mm; d:65 mm; Bearing Width:18 mm; Contact Angle:25 º; Size (mm):5.906 Inch \| 150 Millimeter x 8.858 Inch \| 225 Millimeter x 2.953 Inch \| 75 Millimeter ;
150 mm x 225 mm x 56 mm SKF 23030 CCK/W33 Spherical Roller Bearings	I.D.(Ø):25; Raceway Ring Shape:Cylindrical Roller; Material Symbol:No; Clearance sign:No; Symbols of Lubrication Amount:No; Precision (JIS):Grade 0; Retainer Type:Punching; Number of Raceway Ring Rows:Single Row; Outer Ring Type:Flat; Size (mm):150 mm x 225 mm x 56 mm ;
100 mm x 165 mm x 52 mm SKF 23120 CC/W33 Spherical Roller Bearings	Type:Bearings with Housin; Bearing Retained:Yes (with retaining; Housing Material:[Aluminum Alloy] Alu; Shape:T-Shaped; Lateral Width L(mm):70; Bearing Part Number:6003; Seals:VV (Non-Contact Rubb; Height Indication:Height Selection; Size (mm):100 mm x 165 mm x 52 mm ;
4.724 Inch \| 120 Millimeter x 7.087 Inch \| 180 Millimeter x 1.811 Inch \| 46 Millimeter SKF 23024 CCK/C3W33 Spherical Roller Bearings	Bearing Used:Deep Groove Ball Bea; Number of Bearings:Single; Flange Shape:Round Type; Seals:ZZ (Double Shield); Shape:Flange Type; Bearing Part Number:6208; Type:Bearings with Housin; Width T(mm):27; Bearing Material:[Steel] Steel; Size (mm):4.724 Inch \| 120 Millimeter x 7.087 Inch \| 180 Millimeter x 1.811 Inch \| 46 Millimeter ;