Configuration
Full designation, seals or shields, accuracy, clearance, cage, material and any matched arrangement.

BEARING SPECIFICATION / 30220
100 × 180 × 37 mm · A focused approach to combined load. Compare the sourced reference data and specify your SANJ requirement.

Tapered Roller Bearings
30220 identifies a tapered roller bearing reference with 100 mm bore, 180 mm outside diameter and 37 mm overall width or height.
Tapered rollers carry combined radial and axial load. Confirm cone and cup designations, overall width and arrangement before selecting a replacement.
REFERENCE SPECIFICATION
Full factual values from the source designation 30220JR. 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 | 100 mm |
| D | 180 mm |
| T | 37 mm |
| B | 34 mm |
| C | 29 mm |
| r(min.) | 3 mm |
| r1(min.) | 2.5 mm |
| Basic load ratings : Cr | 323 kN |
| Basic load ratings : C0r | 338 kN |
| Fatigue load limit : Cu | 49.1 kN |
| Limiting speeds(Grease lub.) | 2100 min-1 |
| Limiting speeds(Oil lub.) | 2800 min-1 |
| Load center spread : a | 36.8 mm |
| Constant e | 0.42 |
| Axial load factors : Y1 | 1.43 |
| Axial load factors : Y0 | 0.79 |
| da(min.) | 114 mm |
| db(max.) | 116 mm |
| Da(max.) | 168 mm |
| da(min.) | 157 mm |
| db(min.) | 168 mm |
| Sa(min.) | 5 mm |
| Sb(min.) | 8 mm |
| ra(max.) | 2.5 mm |
| rb(max.) | 2 mm |
| Mass(Refer.) | 3.83 kg |
SELECTION CONTEXT
30220 belongs to the tapered roller bearings family. Its reference envelope is 100 mm bore, 180 mm outside diameter and 37 mm overall width or height.
Tapered rollers carry combined radial and axial load. Confirm cone and cup designations, overall width and arrangement before selecting a replacement.
For a manufacturing enquiry, provide the complete designation and operating conditions. Matching the dimensional envelope alone does not confirm interchangeability or equivalent performance.
No. Matching 100 × 180 × 37 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
A complete brief reduces assumptions and gives the quotation a clear technical basis.
Full designation, seals or shields, accuracy, clearance, cage, material and any matched arrangement.
Radial and axial loads, speed, temperature, lubrication, fits, environment and expected service.
Quantity, destination, packing, inspection records, drawing approval and delivery requirement.
FROM MODEL TO REQUIREMENT
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