NSK NU203WC3 Roller Bearings
| Bearing number: |
7238 BCBM |
| Size (mm): |
340x190x55 |
| Bore Diameter (mm): |
340 |
| Outer Diameter (mm): |
190 |
| Width (mm): |
55 |
| d: |
190 mm |
| D: |
340 mm |
| B: |
55 mm |
| PDF |
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Product Details
| Bearing number |
7238 BCBM |
| Size (mm) |
340x190x55 |
| Bore Diameter (mm) |
340 |
| Outer Diameter (mm) |
190 |
| Width (mm) |
55 |
| d |
190 mm |
| D |
340 mm |
| B |
55 mm |
| d1 |
250.4 mm |
| d2 |
224.1 mm |
| D1 |
285.4 mm |
| a |
139 mm |
| r1,2 - min. |
4 mm |
| r3,4 - min. |
1.5 mm |
| da - min. |
207 mm |
| Da - max. |
323 mm |
| Db - max. |
331 mm |
| ra - max. |
3 mm |
| rb - max. |
1.5 mm |
| Basic dynamic load rating - C |
307 kN |
| Basic static load rating - C0 |
405 kN |
| Fatigue load limit - Pu |
10.4 kN |
| Reference speed |
2000 r/min |
| Limiting speed |
2200 r/min |
| Calculation factor - kr |
0.08 |
| Calculation factor - ka |
1.2 |
| 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 |
22.127 |
| Product Group |
B00308 |
| Enclosure |
Open |
| Flush Ground |
Yes |
| Rolling Element |
Ball Bearing |
| Number of Rows of Balls |
Single Row |
| Precision Class |
ABEC 1 | ISO P0 |
| Maximum Capacity / Filling Slot |
No |
| Snap Ring |
No |
| Cage Material |
Brass |
| Contact Angle |
40 Degree |
| Internal Clearance |
CB |
| Number of Bearings |
1 (Single) |
| Mounting Arrangement |
Universal |
| Inch - Metric |
Metric |
| Long Description |
190MM Bore; 340MM Outside Diameter; 55MM Width; Open; Yes Flush Ground; Ball Bearing; Single Row of Balls; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; CB; Brass Cage; 40 Degree; 1 (Single); Univer |
| Other Features |
Normal Axial Internal Clearance |
| UNSPSC |
31171531 |
| Harmonized Tariff Code |
8482.10.50.28 |
| Noun |
Bearing |
| Keyword String |
Angular Contact |
| Manufacturer Item Number |
7238 BCBM |
| Outside Diameter |
13.386 Inch | 340 Millimeter |
| Width |
2.165 Inch | 55 Millimeter |
| Bore |
7.48 Inch | 190 Millimeter |
| bore diameter: |
190 mm |
| radial static load capacity: |
405 kN |
| outside diameter: |
340 mm |
| cage material: |
Brass |
| overall width: |
55 mm |
| outer ring width: |
55 mm |
| contact angle: |
40 ° |
| maximum rpm: |
2200 RPM |
| row type & fill slot: |
Single-Row Non-Fill Slot |
| finish/coating: |
Uncoated |
| internal clearance: |
C0 |
| precision rating: |
Not Rated |
| closure type: |
Open |
| fillet radius: |
3 mm |
| radial dynamic load capacity: |
307 kN |
| series: |
72 |
| d1 ≈ |
250.4 mm |
| d2 ≈ |
224.1 mm |
| D1 ≈ |
285.4 mm |
| r1,2 min. |
4 mm |
| r3,4 min. |
1.5 mm |
| da min. |
207 mm |
| Da max. |
323 mm |
| Db max. |
331 mm |
| ra max. |
3 mm |
| rb max. |
1.5 mm |
| Basic dynamic load rating C |
307 kN |
| Basic static load rating C0 |
405 kN |
| Fatigue load limit Pu |
10.4 kN |
| Calculation factor A |
2.63 |
| Calculation factor kr |
0.08 |
| 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 |
22 kg |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |