30311 Single row taper roller bearings dimensions
New Designations :
30311
Old Code :
7311E
Main demensions :
55 × 120 ×
31.5
Bore Dia × Outside Dia × Width Dia (mm)
M :
1.56 kg
Weight
HS Code :
8482200000
Bearing customs code
ID :
55 mm
Inside diameter(I.D.)
OD :
120 mm
Outside diameter(O.D.)
T(B) :
31.5 mm
Thickness(W.D.)
C :
175.892 kN
Radial dynamic load rating
C0 :
162.654 kN
Radial static load rating
Grease rpm :
4757 r/min
Reference speed
Oil rpm :
5591 r/min
Limiting speed
Category :
Single row taper roller bearings
Detailed parameters and installation dimensions:
| Part Number | 30311 |
| Units | Metric |
| Series | 30300 |
| Speed ratings (grease) - nB | 4757 min–1 |
| Speed ratings (oil) - nG | 5591 min–1 |
| Contact angle - α | 12.953 ° |
| Dimension series | 2FB |
| Dimension Inside - d φ | 55 mm | 2.165 inch |
| Ring Material | GCr15SiMn |
| Dimension Outside - D Φ | 120 mm | 4.724 inch |
| Dimension Thickness - T | 31.5 mm | 1.240 inch |
| Dimension - d1 | 84 mm | 3.307 inch |
| Cage | Stamping steel cage |
| Dimension Cone - B | 29 mm | 1.142 inch |
| Dimension Cup - C | 25 mm | 0.984 inch |
| Fatigue load limit - Pu | 19152 N | 4305 lbf |
| Bearing Type | Metric single row tapered roller bearings |
| Mounting dimensions shaft - db min. | 66.5 mm | 2.618 inch |
| Mounting dimensions housing - Db min. | 111 mm | 4.370 inch |
| Mounting dimensions Radius - rb max. | 2 mm | 0.079 inch |
| Limiting value - e | 0.35 |
| Matched arrangement | No |
| Dimension Chamfer - r1,2 min. | 2.5 mm | 0.098 inch |
| Mounting dimensions - Cb min. | 6.5 mm | 0.256 inch |
| Mounting dimensions shaft - da max. | 72 mm | 2.835 inch |
| Mounting dimensions housing - Da min. | 104 mm | 4.094 inch |
| Flange | No |
| Calculation coefficient - Y | 1.7 |
| Bore | Cylindrical bore |
| Relubrication | No |
| Heat stabilized | 120 °C (250 °F) |
| Row NO. | One |
| Bearing Mass - m | 1.56 kg | 3.439 lb |
| Manufacturer Part Code | 30311 |
| Dimension pressure points - a | 23.986 mm | 0.944 inch |
| Bearing part | Complete |
| Mounting dimensions housing - Da max. | 110.5 mm | 4.350 inch |
| Mounting dimensions - Ca min. | 4 mm | 0.157 inch |
| Mounting dimensions Radius - ra max. | 2.5 mm | 0.098 inch |
| Dimension Chamfer - r3,4 min. | 2 mm | 0.079 inch |
| Seal | Open |
| Roller Material | GCr15SiMn |
| Calculation coefficient - Y0 | 0.9 |
| Radial Dynamic Capacity - Cr | 175892 N | 39540 lbf |
| Radial Static Capacity - C0r | 162654 N | 36564 lbf |
| Coating | No |
| Lubricant | No |
Single row taper roller bearings 30311, 1.56 kg Bearing mass, (55*120*31.5 mm), 55 mm d (Bore: diameter of the inner ring), 120 mm D (Outside: diameter of the outer cylindrical surface of the outer ring), 31.5 mm B (Width: nominal width of the bearing), 175892 N radial dynamic load capacity (Dyn. Cr), 162654 N radial static load capacity (Stat. Cor), 4757 r/min Maximum RPM (Speed in grease), 5591 r/min Maximum RPM (Speed in oil)
- Min. Order: 1 Piece/(30311, 55 = ID, 120 = OD, 31.5 = B, 1.56 kg) or according to different suppliers
- Price: Different brands, different quality, different 30311 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:
Reference From NTN 30311, Tapered Roller Bearings - 2.1654 inch id x 4.7244 inch OD x 29 mm Cone B, 21 mm Cup C, Class 0 Accuracy class;
Manufacturer Part Code: 30311;
Dimension Inside - id φ: 2.1654 inch;
Dimension Cup Width (C): 21 mm;
Assembly Type: Cone & Cup;
Dimension Outside - OD Φ: 4.7244 inch;
Dimension Cone Width (B): 29 mm;
Type of Closure: Open;
Dimension Thickness (T): 1.2402 inch;
Grade Of Accuracy (ABMA): Class 0;
Material of Bearing: Case Carburized Steel;
Operation Temp Rating: -40 to 250 °F;
Dyn. Load Rating: 35000 lbf;
Fillet Radius(ra): 2 mm;
Stat. Load Rating: 40000 lbf;
HS Code: 8482.20.0061;
Bearing Mass (m): 3.59 lbs;
Manufacturer Part Code: 30311;
Dimension Inside - id φ: 2.1654 inch;
Dimension Cup Width (C): 21 mm;
Assembly Type: Cone & Cup;
Dimension Outside - OD Φ: 4.7244 inch;
Dimension Cone Width (B): 29 mm;
Type of Closure: Open;
Dimension Thickness (T): 1.2402 inch;
Grade Of Accuracy (ABMA): Class 0;
Material of Bearing: Case Carburized Steel;
Operation Temp Rating: -40 to 250 °F;
Dyn. Load Rating: 35000 lbf;
Fillet Radius(ra): 2 mm;
Stat. Load Rating: 40000 lbf;
HS Code: 8482.20.0061;
Bearing Mass (m): 3.59 lbs;
The equivalents & Variants model of 30311 Single row taper roller bearings:
SKF 30311, FAG 30311A, NSK HR30311J, NTN 4T-30311, NACHI E30311J, SNR 30311V, KOYO 30311JR, ZKL 30311E, STEYR 30311
Data Transfering...
tradebearings
Email: info@tradebearings.com Tel: 86-0578-18167086030 2023-04-0437 Tapered ball bearing 30309 Application name: Tapered ball bearing 30309 Outer diameter (D): 100 mm Inner diameter (d): 45 mm Width: 27.25 mm Weight: 0.97 kg 15
38 Tapered ball bearing 30310 Application name: Tapered ball bearing 30310 Outer diameter (D): 100 mm Inner diameter (d): 50 mm Width: 29.25 mm Weight: 1.25 kg 15
39 Tapered ball bearing 30311 Product name: Tapered ball bearing 30311 Outer diameter (D): 100 mm Inner diameter (d): 55 mm Width: 31.5 mm Weight: 1.55 kg 20
40 Tapered ball bearing 32304 Product name: Tapered ball bearing 32304 Outer diameter (D): 52 mm Inner diameter (d): 20 mm Width: 22.25 mm Weight: 0.36 kg 10
Wafangdian AA Bearing Trade Co.,Ltd
Email: sales@spainbearing.com Tel: 86-159-06428604 2021-11-2130311 Tapered Roller Bearing, 55 mm = Bore (d), 120 mm = D, 31.5 mm = B; Brand: Interchangeable From FAG 30311 or OEM;
Bearing Series = 303;
Bore Dia. (d) = 55 mm;
Outside Dia. (D) = 120 mm;
Number of Rows = 1;
Width (B) = 31.5 mm