30203 Bearing Dimensions 17×40×13.25 30203A Tapered Roller Bearing
Weight: 0.07kg
Size: 17×40×13.25mm
Cage: Stampled steel
Material：Chrome steel, Gcr15
Limiting speed: 12000 rpm
A: Internal design has modification
Structure：Taper roller bearing, separable, adjusted or in pairs
Also Known As: 30203, 30203-A，30203A，30203J, 30203J2/Q, 30203 J2/Q, 4T-30203
30203 Bearing Dimensions Specification:
30203 bearing dimensions are 17×40×13.25mm.
For this bearing model,
d: 17mm
D: 40mm
T: 13.25mm
Weight: 0.07kg
Cage: Stampled steel
Material：Chrome steel, Gcr15
Limiting speed: 12000 rpm
A: Internal design has modification
Structure：Taper roller bearing, separable, adjusted or in pairs
Also Known As: 30203, 30203-A，30203A，30203J, 30203J2/Q, 30203 J2/Q, 4T-30203 etc.
Single Row Taper Roller Bearing Size Chart mm:
| Model Number | Specifications(dxDxB) | Weight/kg |
| 30202 | 15×35×12 | 0.050 |
| 30203 | 17×40×13.25 | 0.078 |
| 30204 | 20×47×15.25 | 0.120 |
| 30205 | 25×52×16.25 | 0.144 |
| 30206 | 30×62×17.25 | 0.232 |
| 30207 | 35×72×18.25 | 0.318 |
| 30208 | 40×80×19.75 | 0.400 |
| 30209 | 45×85×20.75 | 0.442 |
| 30210 | 50×90×21.75 | 0.520 |
| 30211 | 55×100×22.75 | 0.705 |
| 30212 | 60×110×23.75 | 0.886 |
| 30213 | 65×120×24.75 | 1.160 |
| 30214 | 70×125×26.25 | 1.250 |
| 30214/T | 70×125×26.25 | 1.290 |
| 30215 | 75×130×27.25 | 1.340 |
Tapered Roller Bearing 30203 Photo:
Single Row Taper Roller Bearings Advantages:
1. Low friction resistance, flexible starting, and high efficiency (n=0.98~0.99)
2. Bearing capacity per unit width is strong
3. The consumption of non-ferrous metals is greatly reduced
4. Cups and cones are separable, which are easy to replace, lubricate and maintain
Questions that help when 30203 and 30203A is on the shortlist
When is 30203 and 30203A worth comparing against nearby taper roller bearings options?
Comparison helps when dimensional fit is only part of the decision and load direction, sealing, clearance, speed, temperature, or repeat-order stability still need to be confirmed. Reviewing one or two nearby options early usually reduces sourcing mistakes later.
What details usually matter before approving 30203 and 30203A for repeat supply?
Buyers normally confirm the part reference, main dimensions, application, speed range, operating environment, sealing needs, and any packaging or marking requirements. That gives the supplier a cleaner basis for confirming availability and suitable alternatives.
Which next step usually helps after 30203 and 30203A is shortlisted?
A quick review of Taper Roller Bearings, one more commercial destination, and one practical guide usually saves time. That combination helps separate simple replacement orders from jobs that still need fit or application review.
Why keep a supporting guide linked beside 30203 and 30203A?
Because it makes later decisions faster. When sizing notes, application cues, and nearby options stay close to the product, engineering, purchasing, and maintenance teams can revisit the same logic without starting the review from zero.
Shipping Method:
1. Sea shipping for mass cargos (GW > 500KGS)
2. Air shipping (GW between 100KGS – 500 KGS)
3. Express, such as DHL, TNT, Fedex, UPS for small cargos ( GW < 100KGS)
4. If you have shipping agent in China, we can send goods to your shipping agent's warehouse
Payment Terms:
We accept T/T, W/U, PAYPAL, L/C etc
Buyer FAQ
Questions buyers ask before choosing the next bearing option
What should I confirm before ordering 30203 Bearing Dimensions 17×40×13.25 30203A Tapered Roller Bearing?
Confirm the bearing number, bore size, outside diameter, width, seal or shield type, cage material, clearance, precision level, quantity, and application. These details help prevent a size match from becoming a performance mismatch.
Can this bearing be matched for replacement or repeat supply?
Yes. Replacement and repeat orders are easier when the original marking, measured dimensions, photos, application, and quantity are available. If the marking is unclear, the team can start from the size and working condition.
Which product family does this bearing belong to?
This item is handled within the Taper Roller Bearings family. Comparing the family page can help buyers review similar sizes, seal options, load direction, and related bearing choices before requesting a quote.
What affects price and lead time for this bearing?
Price and lead time can change with quantity, stock availability, precision grade, clearance, material, cage, seal or shield type, lubrication, packaging, and whether the order needs standard matching or custom production.
How is this bearing checked before delivery?
Inspection can include material review, dimensional measurement, noise and vibration checks, surface and crack checks, visual review, and packaging inspection according to the confirmed order requirements.
Need help checking fit, price, or lead time? Request a bearing quote
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