7230B KOYO Single-row, matched pair angular contact ball bearings
| Brand Name: |
KOYO |
| Model Number: |
7230B |
| Bearing number: |
7308 BEP |
| Size (mm): |
90x40x23 |
| Bore Diameter (mm): |
90 |
| Outer Diameter (mm): |
40 |
| Width (mm): |
23 |
| d: |
40 mm |
| D: |
90 mm |
| B: |
23 mm |
| PDF |
7230B |
Product Details
| Bearing number |
7308 BEP |
| Size (mm) |
90x40x23 |
| Bore Diameter (mm) |
90 |
| Outer Diameter (mm) |
40 |
| Width (mm) |
23 |
| d |
40 mm |
| D |
90 mm |
| B |
23 mm |
| d1 |
59.7 mm |
| d2 |
49.55 mm |
| D1 |
71.6 mm |
| a |
39 mm |
| r1,2 - min. |
1.5 mm |
| r3,4 - min. |
1 mm |
| da - min. |
49 mm |
| Da - max. |
81 mm |
| Db - max. |
84.4 mm |
| ra - max. |
1.5 mm |
| rb - max. |
1 mm |
| Basic dynamic load rating - C |
46.2 kN |
| Basic static load rating - C0 |
30.5 kN |
| Fatigue load limit - Pu |
1.3 kN |
| Reference speed |
9000 r/min |
| Limiting speed |
9000 r/min |
| Calculation factor - kr |
0.1 |
| Calculation factor - ka |
1.6 |
| Calculation factor - e |
1.14 |
| Calculation factor - X |
0.35 |
| Calculation factor - Y0 |
0.26 |
| Calculation factor - Y1 |
0.55 |
| Calculation factor - Y2 |
0.57 |
| Category |
Angular Contact Ball Bearing |
| Inventory |
0.0 |
| Minimum Buy Quantity |
N/A |
| Weight / Kilogram |
0.61 |
| Product Group |
B00308 |
| Enclosure |
Open |
| Flush Ground |
No |
| Rolling Element |
Ball Bearing |
| Number of Rows of Balls |
Single Row |
| Precision Class |
ABEC 3 | ISO P6 |
| Maximum Capacity / Filling Slot |
No |
| Snap Ring |
No |
| Cage Material |
Polymer |
| Contact Angle |
40 Degree |
| Internal Clearance |
C0-Medium |
| Number of Bearings |
1 (Single) |
| Inch - Metric |
Metric |
| Long Description |
40MM Bore; 90MM Outside Diameter; 23MM Width; Open; No Flush Ground; Ball Bearing; Single Row of Balls; ABEC 3 | ISO P6; No Filling Slot; No Snap Ring |
| UNSPSC |
31171531 |
| Harmonized Tariff Code |
8482.10.50.28 |
| Noun |
Bearing |
| Keyword String |
Angular Contact |
| Manufacturer Item Number |
7308 BEP |
| Weight / LBS |
1.347 |
| Width |
0.906 Inch | 23 Millimeter |
| Outside Diameter |
3.543 Inch | 90 Millimeter |
| Bore |
1.575 Inch | 40 Millimeter |
| bore diameter: |
40 mm |
| radial static load capacity: |
30.5 kN |
| outside diameter: |
90 mm |
| cage material: |
Nylon |
| overall width: |
23 mm |
| outer ring width: |
23 mm |
| contact angle: |
40 ° |
| maximum rpm: |
9000 RPM |
| row type & fill slot: |
Single-Row Non-Fill Slot |
| finish/coating: |
Uncoated |
| internal clearance: |
C0 |
| precision rating: |
ABEC 3 (ISO Class 6) |
| closure type: |
Open |
| fillet radius: |
1.5 mm |
| radial dynamic load capacity: |
46.2 kN |
| series: |
73 |
| d1 ≈ |
59.7 mm |
| d2 ≈ |
49.55 mm |
| D1 ≈ |
71.6 mm |
| r1,2 min. |
1.5 mm |
| r3,4 min. |
1 mm |
| da min. |
49 mm |
| Da max. |
81 mm |
| Db max. |
84.4 mm |
| ra max. |
1.5 mm |
| rb max. |
1 mm |
| Basic dynamic load rating C |
46.2 kN |
| Basic static load rating C0 |
30.5 kN |
| Fatigue load limit Pu |
1.29 kN |
| Calculation factor A |
0.0173 |
| Calculation factor kr |
0.1 |
| Calculation factor e |
1.14 |
| Calculation factor X |
0.57 |
| Calculation factor Y0 |
0.52 |
| Calculation factor Y2 |
0.93 |
| Calculation factor Y1 |
0.55 |
| Mass bearing |
0.62 kg |