AISI 420 Stainless Steel Bearings for Industrial Use

AISI 420 Stainless Steel Bearings for Industrial Use Overview

Compare representative CXE Bearing products by dimensions, material, and seal type. Use the left navigation to switch collections without returning to the catalog home.

Products In This Collection

Browse all matching CXE Bearing products in this collection. Each row shows dimensions, material, seal type, public reference price, and the fastest RFQ path.

241-360 / 443 products

Product	Bore	OD	Width	Material	Seal	Reference Price	RFQ
S61916 80 x 110 x 16 mm Deep Groove Ball Bearing	80 mm	110 mm	16 mm	Stainless Steel		Reference US$ 11.27 AISI 420	RFQ
S6200-2RS 10 x 30 x 9 mm Bearing	10 mm	30 mm	9 mm	Stainless Steel	2RS	Reference US$ 0.44 AISI 420	RFQ
S6200-ZZ 10 x 30 x 9 mm Deep Groove Ball Bearing	10 mm	30 mm	9 mm	Stainless Steel	ZZ	Reference US$ 0.44 AISI 420	RFQ
S6201-2RS 12 x 32 x 10 mm Deep Groove Ball Bearing	12 mm	32 mm	10 mm	Stainless Steel	2RS	Reference US$ 0.48 AISI 420	RFQ
S6201-ZZ 12 x 32 x 10 mm Deep Groove Ball Bearing	12 mm	32 mm	10 mm	Stainless Steel	ZZ	Reference US$ 0.48 AISI 420	RFQ
S6202-2RS 15 x 35 x 11 mm Deep Groove Ball Bearing	15 mm	35 mm	11 mm	Stainless Steel	2RS	Reference US$ 0.55 AISI 420	RFQ
S6202-ZZ 15 x 35 x 11 mm Deep Groove Ball Bearing	15 mm	35 mm	11 mm	Stainless Steel	ZZ	Reference US$ 0.55 AISI 420	RFQ
S6203-2RS 17 x 40 x 12 mm Deep Groove Ball Bearing	17 mm	40 mm	12 mm	Stainless Steel	2RS	Reference US$ 0.72 AISI 420	RFQ
S6203-ZZ 17 x 40 x 12 mm Deep Groove Ball Bearing	17 mm	40 mm	12 mm	Stainless Steel	ZZ	Reference US$ 0.72 AISI 420	RFQ
S6204-ZZ 20 x 47 x 14 mm Bearing	20 mm	47 mm	14 mm	Stainless Steel	ZZ	Reference US$ 0.93 AISI 420	RFQ
S6205-2RS 25 x 52 x 15 mm Deep Groove Ball Bearing	25 mm	52 mm	15 mm	Stainless Steel	2RS	Reference US$ 1.26 AISI 420	RFQ
S6205-ZZ 25 x 52 x 15 mm Deep Groove Ball Bearing	25 mm	52 mm	15 mm	Stainless Steel	ZZ	Reference US$ 1.26 AISI 420	RFQ
S6206-2RS 30 x 62 x 16 mm Deep Groove Ball Bearing	30 mm	62 mm	16 mm	Stainless Steel	2RS	Reference US$ 1.66 AISI 420	RFQ
S6206-ZZ 30 x 62 x 16 mm Deep Groove Ball Bearing	30 mm	62 mm	16 mm	Stainless Steel	ZZ	Reference US$ 1.66 AISI 420	RFQ
S6207-2RS 35 x 72 x 17 mm Deep Groove Ball Bearing	35 mm	72 mm	17 mm	Stainless Steel	2RS	Reference US$ 2.46 AISI 420	RFQ
S6207-ZZ 35 x 72 x 17 mm Deep Groove Ball Bearing	35 mm	72 mm	17 mm	Stainless Steel	ZZ	Reference US$ 2.46 AISI 420	RFQ
S6208-2RS 40 x 80 x 18 mm Deep Groove Ball Bearing	40 mm	80 mm	18 mm	Stainless Steel	2RS	Reference US$ 3.06 AISI 420	RFQ
S6208-ZZ 40 x 80 x 18 mm Deep Groove Ball Bearing	40 mm	80 mm	18 mm	Stainless Steel	ZZ	Reference US$ 3.06 AISI 420	RFQ
S6209-2RS 45 x 85 x 19 mm Deep Groove Ball Bearing	45 mm	85 mm	19 mm	Stainless Steel	2RS	Reference US$ 3.83 AISI 420	RFQ
S6209-ZZ 45 x 85 x 19 mm Deep Groove Ball Bearing	45 mm	85 mm	19 mm	Stainless Steel	ZZ	Reference US$ 3.83 AISI 420	RFQ
S6210-2RS 50 x 90 x 20 mm Deep Groove Ball Bearing	50 mm	90 mm	20 mm	Stainless Steel	2RS	Reference US$ 4.51 AISI 420	RFQ
S6210-ZZ 50 x 90 x 20 mm Deep Groove Ball Bearing	50 mm	90 mm	20 mm	Stainless Steel	ZZ	Reference US$ 4.51 AISI 420	RFQ
S6211-2RS 55 x 100 x 21 mm Deep Groove Ball Bearing	55 mm	100 mm	21 mm	Stainless Steel	2RS	Reference US$ 6.44 AISI 420	RFQ
S6211-ZZ 55 x 100 x 21 mm Deep Groove Ball Bearing	55 mm	100 mm	21 mm	Stainless Steel	ZZ	Reference US$ 6.44 AISI 420	RFQ
S6212-2RS 60 x 110 x 22 mm Deep Groove Ball Bearing	60 mm	110 mm	22 mm	Stainless Steel	2RS	Reference US$ 7.89 AISI 420	RFQ
S6212-ZZ 60 x 110 x 22 mm Deep Groove Ball Bearing	60 mm	110 mm	22 mm	Stainless Steel	ZZ	Reference US$ 7.89 AISI 420	RFQ
S6213-2RS 65 x 120 x 23 mm Deep Groove Ball Bearing	65 mm	120 mm	23 mm	Stainless Steel	2RS	Reference US$ 9.66 AISI 420	RFQ
S6213-ZZ 65 x 120 x 23 mm Deep Groove Ball Bearing	65 mm	120 mm	23 mm	Stainless Steel	ZZ	Reference US$ 9.66 AISI 420	RFQ
S6214-2RS 70 x 125 x 24 mm Deep Groove Ball Bearing	70 mm	125 mm	24 mm	Stainless Steel	2RS	Reference US$ 13.37 AISI 420	RFQ
S6214-ZZ 70 x 125 x 24 mm Deep Groove Ball Bearing	70 mm	125 mm	24 mm	Stainless Steel	ZZ	Reference US$ 13.37 AISI 420	RFQ
S6215-2RS 75 x 130 x 25 mm Deep Groove Ball Bearing	75 mm	130 mm	25 mm	Stainless Steel	2RS	Reference US$ 16.10 AISI 420	RFQ
S6215-ZZ 75 x 130 x 25 mm Deep Groove Ball Bearing	75 mm	130 mm	25 mm	Stainless Steel	ZZ	Reference US$ 16.10 AISI 420	RFQ
S6216-ZZ 80 x 140 x 26 mm Deep Groove Ball Bearing	80 mm	140 mm	26 mm	Stainless Steel	2RS	On request	RFQ
S6217-2RS 85 x 150 x 28 mm Deep Groove Ball Bearing	85 mm	150 mm	28 mm	Stainless Steel	2RS	On request	RFQ
S6217-ZZ 85 x 150 x 28 mm Deep Groove Ball Bearing	85 mm	150 mm	28 mm	Stainless Steel	ZZ	On request	RFQ
S6218-2RS 90 x 160 x 30 mm Deep Groove Ball Bearing	90 mm	160 mm	30 mm	Stainless Steel	2RS	On request	RFQ
S6218-ZZ 90 x 160 x 30 mm Deep Groove Ball Bearing	90 mm	160 mm	30 mm	Stainless Steel	ZZ	On request	RFQ
S6219-2RS 95 x 170 x 32 mm Deep Groove Ball Bearing	95 mm	170 mm	32 mm	Stainless Steel	2RS	On request	RFQ
S6219-ZZ 95 x 170 x 32 mm Deep Groove Ball Bearing	95 mm	170 mm	32 mm	Stainless Steel	ZZ	On request	RFQ
S6220-ZZ 100 x 180 x 34 mm Deep Groove Ball Bearing	100 mm	180 mm	34 mm	Stainless Steel	ZZ	On request	RFQ
S62200-2RS 10 x 30 x 14 mm Deep Groove Ball Bearing	10 mm	30 mm	14 mm	Stainless Steel	2RS	On request	RFQ
S62200-ZZ 10 x 30 x 14 mm Deep Groove Ball Bearing	10 mm	30 mm	14 mm	Stainless Steel	ZZ	On request	RFQ
S62201-2RS 12 x 32 x 14 mm Deep Groove Ball Bearing	12 mm	32 mm	14 mm	Stainless Steel	2RS	On request	RFQ
S62201-ZZ 12 x 32 x 14 mm Deep Groove Ball Bearing	12 mm	32 mm	14 mm	Stainless Steel	ZZ	On request	RFQ
S62202-2RS 15 x 35 x 14 mm Deep Groove Ball Bearing	15 mm	35 mm	14 mm	Stainless Steel	2RS	On request	RFQ
S62202-ZZ 15 x 35 x 14 mm Deep Groove Ball Bearing	15 mm	35 mm	14 mm	Stainless Steel	ZZ	On request	RFQ
S62203-2RS 17 x 40 x 16 mm Deep Groove Ball Bearing	17 mm	40 mm	16 mm	Stainless Steel	2RS	On request	RFQ
S62203-ZZ 17 x 40 x 16 mm Deep Groove Ball Bearing	17 mm	40 mm	16 mm	Stainless Steel	ZZ	On request	RFQ
S62204-2RS 20 x 47 x 18 mm Deep Groove Ball Bearing	20 mm	47 mm	18 mm	Stainless Steel	2RS	On request	RFQ
S62204-ZZ 20 x 47 x 18 mm Deep Groove Ball Bearing	20 mm	47 mm	18 mm	Stainless Steel	ZZ	On request	RFQ
S62205-2RS 25 x 52 x 18 mm Deep Groove Ball Bearing	25 mm	52 mm	18 mm	Stainless Steel	2RS	On request	RFQ
S62205-ZZ 25 x 52 x 18 mm Deep Groove Ball Bearing	25 mm	52 mm	18 mm	Stainless Steel	ZZ	On request	RFQ
S62206-2RS 30 x 62 x 20 mm Deep Groove Ball Bearing	30 mm	62 mm	20 mm	Stainless Steel	2RS	On request	RFQ
S62206-ZZ 30 x 62 x 20 mm Deep Groove Ball Bearing	30 mm	62 mm	20 mm	Stainless Steel	ZZ	On request	RFQ
S62207-2RS 35 x 72 x 23 mm Deep Groove Ball Bearing	35 mm	72 mm	23 mm	Stainless Steel	2RS	On request	RFQ
S62207-ZZ 35 x 72 x 23 mm Deep Groove Ball Bearing	35 mm	72 mm	23 mm	Stainless Steel	ZZ	On request	RFQ
S62208-2RS 40 x 80 x 23 mm Deep Groove Ball Bearing	40 mm	80 mm	23 mm	Stainless Steel	2RS	On request	RFQ
S62208-ZZ 40 x 80 x 23 mm Deep Groove Ball Bearing	40 mm	80 mm	23 mm	Stainless Steel	ZZ	On request	RFQ
S62209-2RS 45 x 85 x 23 mm Deep Groove Ball Bearing	45 mm	85 mm	23 mm	Stainless Steel	2RS	On request	RFQ
S62209-ZZ 45 x 85 x 23 mm Deep Groove Ball Bearing	45 mm	85 mm	23 mm	Stainless Steel	ZZ	On request	RFQ
S6221-ZZ 105 x 190 x 36 mm Deep Groove Ball Bearing	105 mm	190 mm	36 mm	Stainless Steel	ZZ	On request	RFQ
S62210-2RS 50 x 90 x 23 mm Deep Groove Ball Bearing	50 mm	90 mm	23 mm	Stainless Steel	2RS	On request	RFQ
S62210-ZZ 50 x 90 x 23 mm Deep Groove Ball Bearing	50 mm	90 mm	23 mm	Stainless Steel	ZZ	On request	RFQ
S6222-ZZ 110 x 200 x 38 mm Deep Groove Ball Bearing	110 mm	200 mm	38 mm	Stainless Steel	ZZ	On request	RFQ
S6224-ZZ 120 x 215 x 40 mm Deep Groove Ball Bearing	120 mm	215 mm	40 mm	Stainless Steel	ZZ	On request	RFQ
S6226-ZZ 130 x 230 x 40 mm Deep Groove Ball Bearing	130 mm	230 mm	40 mm	Stainless Steel	ZZ	On request	RFQ
S623-ZZ 3 x 10 x 4 mm Bearing	3 mm	10 mm	4 mm	Stainless Steel	ZZ	On request	RFQ
S62302-2RS 15 x 42 x 17 mm Deep Groove Ball Bearing	15 mm	42 mm	17 mm	Stainless Steel	2RS	On request	RFQ
S62303-2RS 17 x 47 x 19 mm Deep Groove Ball Bearing	17 mm	47 mm	19 mm	Stainless Steel	2RS	On request	RFQ
S62304-2RS 20 x 52 x 21 mm Deep Groove Ball Bearing	20 mm	52 mm	21 mm	Stainless Steel	2RS	On request	RFQ
S62305-2RS 25 x 62 x 24 mm Deep Groove Ball Bearing	25 mm	62 mm	24 mm	Stainless Steel	2RS	On request	RFQ
S62306-2RS 30 x 72 x 27 mm Deep Groove Ball Bearing	30 mm	72 mm	27 mm	Stainless Steel	2RS	On request	RFQ
S62307-2RS 35 x 80 x 31 mm Deep Groove Ball Bearing	35 mm	80 mm	31 mm	Stainless Steel	2RS	On request	RFQ
S62308-2RS 40 x 90 x 33 mm Deep Groove Ball Bearing	40 mm	90 mm	33 mm	Stainless Steel	2RS	On request	RFQ
S62309-2RS 45 x 100 x 36 mm Deep Groove Ball Bearing	45 mm	100 mm	36 mm	Stainless Steel	2RS	On request	RFQ
S62310-2RS 50 x 110 x 40 mm Deep Groove Ball Bearing	50 mm	110 mm	40 mm	Stainless Steel	2RS	On request	RFQ
S626-2RS 6 x 19 x 6 mm Ball Bearing	6 mm	19 mm	6 mm	Stainless Steel	2RS	On request	RFQ
S628-ZZ 8 x 24 x 8 mm Bearing	8 mm	24 mm	8 mm	Stainless Steel	ZZ	On request	RFQ
S629-ZZ 9 x 26 x 8 mm Bearing	9 mm	26 mm	8 mm	Stainless Steel	ZZ	On request	RFQ
S6300-2RS 10 x 35 x 11 mm Deep Groove Ball Bearing	10 mm	35 mm	11 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S6300-ZZ 10 x 35 x 11 mm Deep Groove Ball Bearing	10 mm	35 mm	11 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63000-2RS 10 x 26 x 12 mm Deep Groove Ball Bearing	10 mm	26 mm	12 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63000-ZZ 10 x 26 x 12 mm Deep Groove Ball Bearing	10 mm	26 mm	12 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63001-2RS 12 x 28 x 12 mm Deep Groove Ball Bearing	12 mm	28 mm	12 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63001-ZZ 12 x 28 x 12 mm Deep Groove Ball Bearing	12 mm	28 mm	12 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63002-2RS 15 x 32 x 13 mm Deep Groove Ball Bearing	15 mm	32 mm	13 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63002-ZZ 15 x 32 x 13 mm Deep Groove Ball Bearing	15 mm	32 mm	13 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63003-2RS 17 x 35 x 14 mm Deep Groove Ball Bearing	17 mm	35 mm	14 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63003-ZZ 17 x 35 x 14 mm Deep Groove Ball Bearing	17 mm	35 mm	14 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63004-2RS 20 x 42 x 16 mm Deep Groove Ball Bearing	20 mm	42 mm	16 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63004-ZZ 20 x 42 x 16 mm Deep Groove Ball Bearing	20 mm	42 mm	16 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63005-2RS 25 x 47 x 16 mm Deep Groove Ball Bearing	25 mm	47 mm	16 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63005-ZZ 25 x 47 x 16 mm Deep Groove Ball Bearing	25 mm	47 mm	16 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63006-2RS 30 x 55 x 19 mm Deep Groove Ball Bearing	30 mm	55 mm	19 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63006-ZZ 30 x 55 x 19 mm Deep Groove Ball Bearing	30 mm	55 mm	19 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63007-2RS 35 x 62 x 20 mm Deep Groove Ball Bearing	35 mm	62 mm	20 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63007-ZZ 35 x 62 x 20 mm Deep Groove Ball Bearing	35 mm	62 mm	20 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63008-2RS 40 x 68 x 21 mm Deep Groove Ball Bearing	40 mm	68 mm	21 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63008-ZZ 40 x 68 x 21 mm Deep Groove Ball Bearing	40 mm	68 mm	21 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S63009-2RS 45 x 75 x 23 mm Deep Groove Ball Bearing	45 mm	75 mm	23 mm	Stainless Steel	2RS	Reference US$ 0.64 AISI 420	RFQ
S63009-ZZ 45 x 75 x 23 mm Deep Groove Ball Bearing	45 mm	75 mm	23 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S6301-2RS 12 x 37 x 12 mm Deep Groove Ball Bearing	12 mm	37 mm	12 mm	Stainless Steel	2RS	Reference US$ 0.72 AISI 420	RFQ
S6301-ZZ-12MM 12 x 37 x 12 mm Deep Groove Ball Bearing	12 mm	37 mm	12 mm	Stainless Steel	ZZ	Reference US$ 0.72 AISI 420	RFQ
S63010-2RS 50 x 80 x 23 mm Deep Groove Ball Bearing	50 mm	80 mm	23 mm	Stainless Steel	2RS	Reference US$ 0.72 AISI 420	RFQ
S63010-ZZ 50 x 80 x 23 mm Deep Groove Ball Bearing	50 mm	80 mm	23 mm	Stainless Steel	ZZ	Reference US$ 0.72 AISI 420	RFQ
S6302-2RS 15 x 42 x 13 mm Bearing	15 mm	42 mm	13 mm	Stainless Steel	2RS	Reference US$ 0.85 AISI 420	RFQ
S6303-2RS 17 x 47 x 14 mm Deep Groove Ball Bearing	17 mm	47 mm	14 mm	Stainless Steel	2RS	Reference US$ 1.08 AISI 420	RFQ
S6303-ZZ 17 x 47 x 14 mm Deep Groove Ball Bearing	17 mm	47 mm	14 mm	Stainless Steel	ZZ	Reference US$ 1.08 AISI 420	RFQ
S6304-2RS 20 x 52 x 15 mm Deep Groove Ball Bearing	20 mm	52 mm	15 mm	Stainless Steel	2RS	Reference US$ 1.32 AISI 420	RFQ
S6304-ZZ 20 x 52 x 15 mm Deep Groove Ball Bearing	20 mm	52 mm	15 mm	Stainless Steel	ZZ	Reference US$ 1.32 AISI 420	RFQ
S6305-2RS 25 x 62 x 17 mm Deep Groove Ball Bearing	25 mm	62 mm	17 mm	Stainless Steel	2RS	Reference US$ 1.93 AISI 420	RFQ
S6305-ZZ 25 x 62 x 17 mm Deep Groove Ball Bearing	25 mm	62 mm	17 mm	Stainless Steel	ZZ	Reference US$ 1.93 AISI 420	RFQ
S6306-2RS 30 x 72 x 19 mm Deep Groove Ball Bearing	30 mm	72 mm	19 mm	Stainless Steel	2RS	Reference US$ 3.06 AISI 420	RFQ
S6306-ZZ 30 x 72 x 19 mm Deep Groove Ball Bearing	30 mm	72 mm	19 mm	Stainless Steel	ZZ	Reference US$ 3.06 AISI 420	RFQ
S6307-2RS 35 x 80 x 21 mm Deep Groove Ball Bearing	35 mm	80 mm	21 mm	Stainless Steel	2RS	Reference US$ 4.43 AISI 420	RFQ
S6307-ZZ 35 x 80 x 21 mm Deep Groove Ball Bearing	35 mm	80 mm	21 mm	Stainless Steel	ZZ	Reference US$ 4.43 AISI 420	RFQ
S6308-2RS 40 x 90 x 23 mm Deep Groove Ball Bearing	40 mm	90 mm	23 mm	Stainless Steel	2RS	Reference US$ 5.60 AISI 420	RFQ
S6308-ZZ 40 x 90 x 23 mm Deep Groove Ball Bearing	40 mm	90 mm	23 mm	Stainless Steel	ZZ	Reference US$ 5.60 AISI 420	RFQ
S6309-2RS 45 x 100 x 25 mm Deep Groove Ball Bearing	45 mm	100 mm	25 mm	Stainless Steel	2RS	Reference US$ 6.20 AISI 420	RFQ
S6309-ZZ 45 x 100 x 25 mm Deep Groove Ball Bearing	45 mm	100 mm	25 mm	Stainless Steel	ZZ	Reference US$ 6.20 AISI 420	RFQ

Technical Guide Materials, applications, selection notes, and internal reference links for this collection.

AISI 420 stainless steel bearings are commonly reviewed when a buyer needs more corrosion resistance than standard bearing steel while still keeping a hardened martensitic stainless material for general industrial motion. They are often considered for humid machinery, packaging equipment, light wash exposure, instruments, conveyors, and compact assemblies where rust risk is part of the buying decision.

This collection helps buyers compare AISI 420 bearing options by bearing type, model, size, seal style, and application fit. Use it as a material-focused path first, then narrow the choice by bearing family, load direction, closure type, and the space available in the machine.

What Are AISI 420 Bearings?

AISI 420 is a martensitic stainless steel used in bearing applications where hardness, wear behavior, and moderate corrosion resistance all matter. It is different from austenitic stainless grades such as AISI 304 or AISI 316, which are often selected for stronger corrosion resistance but may not be chosen for the same hardened bearing-ring requirements.

For many buyers, the practical question is not simply “Is it stainless?” The better question is whether AISI 420 matches the environment, load, speed, lubrication, and replacement envelope. If the bearing is exposed to moisture or cleaning but still needs a hardened bearing material, AISI 420 can be a practical option to review.

Common Applications

Packaging machinery and light conveyor systems
Automation equipment and compact motion assemblies
Laboratory instruments and measuring equipment
Light-duty food equipment positions where the bearing is not a direct food-contact component
Small motors, rollers, pulleys, and guide mechanisms
Humid indoor machinery and equipment exposed to occasional moisture
Replacement projects where the original bearing was stainless and the exact grade must be confirmed

If the application has aggressive chemicals, marine exposure, frequent washdown, or a strict corrosion requirement, compare AISI 420 with AISI 316 stainless steel bearings before deciding. If the application mainly needs a stainless deep groove bearing in a compact envelope, the broader stainless steel bearings page can help route the model family.

How to Choose an AISI 420 Bearing

Start with Bearing Type

AISI 420 can appear in several bearing families, including deep groove ball bearings, miniature bearings, flanged bearings, needle bearings, and some roller-bearing applications. Match the bearing family to the load direction first. A radial deep groove bearing, a thrust bearing, and a needle bearing solve different problems even when the material grade is the same.

Confirm Dimensions and Suffixes

Check the model number, bore, outside diameter, width, seal or shield suffix, cage, and any special clearance or precision requirement. Do not assume that a stainless replacement is correct only because the dimensions are close. For small bearings, compare related paths such as stainless miniature ball bearings and metric ball bearings when the original marking is unclear.

Review the Operating Environment

AISI 420 is usually considered for moisture, humidity, mild corrosion risk, and clean industrial environments. For harsher corrosion exposure, a different stainless grade or bearing construction may be needed. For higher wear or precision requirements, the bearing type, heat treatment, lubrication, and fit should be reviewed instead of relying on material name alone.

Check Load, Speed, and Lubrication

Material selection does not replace bearing selection. Confirm radial load, axial load, speed range, duty cycle, lubrication method, and expected contamination. If the bearing overheats, corrodes, or wears early, the cause may be lubrication, fit, alignment, seal drag, or contamination rather than the stainless grade alone.

AISI 420 Compared with Other Stainless Bearing Choices

Material Path	Typical Reason to Review	Buyer Caution
AISI 420 stainless bearings	Hardened stainless bearing material with moderate corrosion resistance	Confirm whether corrosion exposure is mild or more severe
AISI 304 bearings	Non-magnetic or cleaner-environment stainless review in some assemblies	Check whether hardness and bearing construction fit the application
AISI 316 stainless bearings	Stronger corrosion-resistance review for wet or chemical exposure	Confirm load, speed, and bearing availability before substitution
Stainless flange ball bearings	Compact locating face plus stainless material	Check flange diameter and mounting space

RFQ Checklist

When requesting AISI 420 stainless steel bearings, include:

Bearing number and suffix, if known
Bore, outside diameter, width, and any flange or shoulder dimensions
Bearing family, such as deep groove, miniature, flanged, needle, or roller
Seal or shield preference, such as open, ZZ, or 2RS
Environment details: moisture, cleaning, humidity, mild chemicals, or dry indoor use
Load direction, speed range, duty cycle, and lubrication method
Photos of the old bearing and the mounted position when the part number is unclear

Common Mistakes to Avoid

Selecting by stainless grade before confirming bearing type
Matching only bore size and ignoring width, suffix, or flange features
Assuming all stainless bearings have the same corrosion behavior
Replacing a sealed bearing with an open bearing in a contaminated position
Treating a material change as the fix for lubrication, fit, or alignment problems

Frequently Asked Questions

Are AISI 420 bearings corrosion resistant?

AISI 420 stainless steel bearings provide corrosion resistance for many mild or humid environments, but the exact fit depends on exposure, cleaning conditions, lubrication, and bearing construction. For stronger corrosion concerns, compare the application with 304 or 316 stainless options.

Can AISI 420 replace standard bearing steel?

It can be reviewed when corrosion resistance is needed, but replacement should still confirm load, speed, clearance, fit, seal type, and lubrication. Do not change material without checking the full bearing requirement.

What information helps CXE Bearing review the request?

Send the bearing number, dimensions, seal or shield requirement, material preference, quantity, operating environment, speed, load direction, lubrication method, and photos if the original part is worn or unmarked.

AISI 420 Stainless Steel Bearings for Industrial Use