51204 Bearing NSK NACHI 51204 Thrust Ball Bearing 20*40*14
Inner (d): 20mm
Outer (D): 40mm
Width (B): 14mm
Weight: 0.0820KG
Material: Chrome Steel GCR15
Brand: NSK, NACHI or others
Cage Type: Steel or Standard Cage
51204 Bearing Technical Data:
51204 bearing is thrust ball bearing fond in many applications. For this bearing,
Inner (d): 20mm
Outer (D): 40mm
Width (B): 14mm
Weight: 0.0820KG
Material: Chrome Steel GCR15
Brand: NSK, NACHI or others
Cage Type: Steel or Standard Cage
Precision: Standard Precision ABEC1
Lubrication: Standard Lubrication Grease or Oil
Category: Thrust Ball Bearing Single Direction
Thrust Ball Bearing Photo:

Useful next options around 51204 and NACHI
A part number like 51204 and NACHI often leads to a second question about fit, alternatives, and repeat-order stability. These links make that next step easier by keeping the wider other ball & roller bearings view, supporting guidance, and quote-led options visible together.
Questions that usually come up before ordering 51204 and NACHI
When is 51204 and NACHI worth comparing against nearby other ball & 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 51204 and NACHI 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 51204 and NACHI is shortlisted?
A quick review of Other Ball & 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 51204 and NACHI?
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 51204 Bearing NSK NACHI 51204 Thrust Ball Bearing 20*40*14?
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 Other Ball & 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
