Configuration
Full designation, seals or shields, accuracy, clearance, cage, material and any matched arrangement.
BEARING SPECIFICATION / NU208
NU208 Cylindrical Roller Bearing
40 × 80 × 18 mm · Radial capacity for demanding rotating systems. Compare the sourced reference data and specify your SANJ requirement.
Cylindrical Roller Bearings
NU208 at a glance
NU208 identifies a cylindrical roller bearing reference with 40 mm bore, 80 mm outside diameter and 18 mm overall width or height.
- Bore / d
- 40 mm
- Outside / D
- 80 mm
- Width / B
- 18 mm
Cylindrical rollers provide radial load capacity. NU, NJ and other ring arrangements differ in axial location and displacement capability.
Reference configuration: NU208R
Ratings below belong to the identified JTEKT / Koyo source record. SANJ material, internal design, performance and supply scope require a confirmed quotation and datasheet.
Ratings below belong to the identified JTEKT / Koyo source record. SANJ material, internal design, performance and supply scope require a confirmed quotation and datasheet.
REFERENCE SPECIFICATION
All the details.
One clear source.
Full factual values from the source designation NU208R. Mounting dimensions and reference mass relate to that design; they must be checked against the final SANJ drawing.
Load ratings: kN · dimensions: mm · speed: min⁻¹ · mass: kg
| Parameter | Reference value |
|---|---|
| d | 40 mm |
| D | 80 mm |
| B | 18 mm |
| r(min.) | 1.1 mm |
| r1(min.) | 1.1 mm |
| Fw | 49.5 mm |
| Ew | - mm |
| Basic load ratings : Cr | 69.6 kN |
| Basic load ratings : C0r | 55.4 kN |
| Fatigue load limit : Cu | 7.35 kN |
| Limiting speeds(Grease lub.) | 8300 min-1 |
| Limiting speeds(Oil lub.) | 9900 min-1 |
| sd1 | - mm |
| B1 | - mm |
| B2 | - mm |
| da(min.) | - mm |
| db(min.) | 46.5 mm |
| db(max.) | 49 mm |
| dc(min.) | - mm |
| dd(min.) | - mm |
| Da(max.) | 73.5 mm |
| Db(max.) | - mm |
| Db(min.) | - mm |
| ra(max.) | 1 mm |
| rb(max.) | 1 mm |
| Mass(Refer.) | 0.384 kg |
SELECTION CONTEXT
Match the bearing
to its duty.
NU208 belongs to the cylindrical roller bearings family. Its reference envelope is 40 mm bore, 80 mm outside diameter and 18 mm overall width or height.
Cylindrical rollers provide radial load capacity. NU, NJ and other ring arrangements differ in axial location and displacement capability.
For a manufacturing enquiry, provide the complete designation and operating conditions. Matching the dimensional envelope alone does not confirm interchangeability or equivalent performance.
Is the same size a direct replacement?
No. Matching 40 × 80 × 18 mm establishes the boundary dimensions. The full designation, tolerances, clearance, contact angle or roller arrangement, seals, cage, lubrication and performance must also be checked.
Understand bearing load ratings →PREPARE A USEFUL ENQUIRY
Specify what the model
number leaves open.
A complete brief reduces assumptions and gives the quotation a clear technical basis.
Operating duty
Radial and axial loads, speed, temperature, lubrication, fits, environment and expected service.
Supply requirement
Quantity, destination, packing, inspection records, drawing approval and delivery requirement.
CONTINUE COMPARING
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NU218 ↗
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Reference imageCylindrical Roller Bearings
NU219 ↗
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Bore × outside diameter × width
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NU220 ↗
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