QJ208MA Four-point contact ball bearings dimensions
New Designations :
QJ208MA
Old Code :
176208H
Main demensions :
40 × 80 ×
18
Bore Dia × Outside Dia × Width Dia (mm)
M :
0.455 kg
Weight
HS Code :
8482103000
Bearing customs code
ID :
40 mm
Inside diameter(I.D.)
OD :
80 mm
Outside diameter(O.D.)
T(B) :
18 mm
Thickness(W.D.)
C :
54.636 kN
Radial dynamic load rating
C0 :
48.531 kN
Radial static load rating
Oil rpm :
14916 r/min
Limiting speed
Category :
Four-point contact ball bearings
Detailed parameters and installation dimensions:
| Part Number | QJ208MA |
| Load | radial |
| Series | QJ 2 series (QJ2..MA) |
| Speed ratings (oil) - nG | 14916 r/min |
| Bore Type | Cylindrical bore |
| Coating | No |
| Dimension Inside - d φ | 40 mm | 1.5748 inch |
| Dimension Outside - D Φ | 80 mm | 3.1496 inch |
| Dimension Width - B | 18 mm | 0.7087 inch |
| Contact angle - α | 35 ° |
| Relubrication | No |
| Filling slots | No |
| Axial internal clearance | CN |
| Running in required | No |
| Radial Dynamic Capacity - Cr | 54636 N | 12282 lbf |
| Radial Static Capacity - C0r | 48531 N | 10909 lbf |
| Ring type | Inner ring(2), outer ring(1) |
| Fatigue load limit - Pu | 1941 N | 436 lbf |
| Lubricant | NO |
| Contact type | 4-point contact |
| Bearing Mass - m | 0.455 kg | 1.0031 lb |
| Dimension Chamfer - r1, r2(min.) | 1.1 mm | 0.0433 inch |
| Dimension - d1 | 49.5 mm | 1.9488 inch |
| Ring Material | GCr15SiMn |
| Distance pressure point - a | 42 mm | 1.6535 inch |
| Coefficient - Y0 | 0.58 |
| Coefficient - Y1 | 0.66 |
| Coefficient - Y2 | 1.07 |
| Heat stabilized | 150 °C (300 °F) |
| Ball Material | GCr15SiMn |
| Locating feature | NO |
| Dimension - D1 | 66 mm | 2.5984 inch |
| Manufacturer Part Code | QJ 208 MA |
| Units | Metric |
| Bearing Type | Four-point contact ball bearings |
| Rows NO. | One |
| Fillet radius - ra max | 1 mm | 0.0394 inch |
| Cage | MA = Machined brass cage, outer ring centred |
| Type | QJ |
| Mounting dimensions shaft - da min | 47 mm | 1.8504 inch |
| Mounting dimensions housing - Da max | 73 mm | 2.8740 inch |
| Seal | Open |
| Temperature - T(min) | -40 °C |
| Temperature - T(max) | 120 °C |
| Limiting value - e | 0.95 |
| Coefficient - X | 0.6 |
| Coefficient - A | 0.0066 |
Four-point contact ball bearings QJ208MA, 0.455 kg Bearing mass, (40*80*18 mm), 40 mm d (Bore: diameter of the inner ring), 80 mm D (Outside: diameter of the outer cylindrical surface of the outer ring), 18 mm B (Width: nominal width of the bearing), 54636 N radial dynamic load capacity (Dyn. Cr), 48531 N radial static load capacity (Stat. Cor), 14916 r/min Maximum RPM (Speed in oil)
- Min. Order: 1 Piece/(QJ208MA, 40 = ID, 80 = OD, 18 = B, 0.455 kg) or according to different suppliers
- Price: Different brands, different quality, different QJ208MA prices, different suppliers and different quality determine different prices, you can ask the supplier in detail for the price according to your own needs.
- Precision Rating: DIN: P2~P0; ANSI: ABEC9~ABEC1; JIS: JIS~JIS0; ISO: CLASS2~NORMAL CLASS; GB/T30794 B~G
- Inquiry ways: The right of the inquiry form, Email, skype, Whatsapp
Specifications From Tradebearings:
Replace For SKF QJ208MA Four Point Contact Ball Bearing with Brass Cage 40x80x18mm;
| Bore Diameter (id): | 40mm |
| Outside Diameter (OD): | 80mm |
| Width (B): | 18mm |
| Dynamic Load Of Radial (Cr): | 56 kN |
| Static Load Of Radial (C0r): | 49 kN |
| Pu: | 1.9 kN |
| Reference Speed For Grease: | 11000 rpm |
| Maximum Speed RPM: | 15000 rpm |
| Bearing Mass: | 0.45 kg |
| d1: | 49.5mm |
| D1: | 66mm |
| r1r2 min: | 1.1mm |
| a: | 42mm |
| b: | 5.5mm |
| h: | 4mm |
| ro: | 0.5mm |
| da min: | 47mm |
| Da max: | 73mm |
| ra max: | 1mm |
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