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MR Miniature SeriesDeep Groove Ball BearingsShielded

FR156

d 4.762 × D 7.938 × B 3.175 mm

The FR156 is a deep groove ball bearing with bore 4.762mm, outer diameter 7.938mm, and width 3.175mm rated for dynamic load 0.3 kN.

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FR156 — representative product photo
Representative product
FR156 · 4.762x7.938x3.175 mm

📋 Technical Specifications

Bore (d)
4.762mm
Outer Dia. (D)
7.938mm
Width (B)
3.175mm
Dynamic Load (Cr)
0.31 kN(307 N)
Static Load (C0r)
0.12 kN(120 N)
Reference Speed
53000rpm
Bearing typeDeep Groove Ball Bearings
SeriesMR Miniature Series
Seal typeShielded
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Measurement systemInch (imperial). Metric values converted at 25.4 mm/in; inch values in brackets.

🔐 Model Code Breakdown

What each part of FR156 means.

FR
Flange Inch
FRFR = inch-series flange

📋 Nominal Variants by Seal Type

Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.

Seal TypeModel CodeTypical Use
Double metal shieldsFR156 ZZ (inquiry only)General dust protectionQuote →
Double contact rubber sealsFR156 2RS (inquiry only)Dust and moisture protection at moderate speedQuote →
Double non-contact rubber sealsFR156 2RZ (inquiry only)Lower-friction sealing at higher speedQuote →
C3 radial clearanceFR156 C3 (inquiry only)Motors and applications with higher operating temperatureQuote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)4.762 (0.1875")
Outer diameter (D)7.938 (0.3125")
Width (B)3.175 (0.125")

Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.

📑 Drawings & 3D Model

FR156 bearing dimension drawing, 4.762 x 7.938 x 3.175 mm
FR156 dimension drawing: bore d 4.762 mm × outer diameter D 7.938 mm × width B 3.175 mm. Tolerance class ABEC-1 (P0). Internal design is shown schematically. Flange Ø Df 9.119 mm, flange width Bf 0.914 mm.
📑
2D Drawing (PDF)
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📐
2D DXF File
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📅
3D STEP Model
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The PDF drawing is free to download. DXF and 3D STEP files are sent on request: tell us the model and your application, and we reply with the CAD files.

⚡ Source-Data Reference Speed

Catalog reference
53,000 rpm

Lubrication method and application speed limit are confirmed per inquiry; no oil-speed value is derived from this number.

⇄ Same-size Bearings & Reference Options

The models below share the 4.762x7.938x3.175 mm boundary dimensions. Matching d/D/B alone does not prove interchangeability; verify seals, clearance, ring features, load ratings, fits, and application conditions before replacement.

ModelRelationshipSeriesSealAction
FRW156Different outer-ring featureFlanged Thin-Section BearingsShieldedQuote →
FRW156zzSame boundary dimensions — verify fit/loadFRW156ShieldedQuote →
SFR156 2rsSame boundary dimensions — verify fit/loadFR156SealedQuote →
SFR156zzSame boundary dimensions — verify fit/loadFR156ShieldedQuote →
SFRW156zzSame boundary dimensions — verify fit/loadFRW156ShieldedQuote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar size — reference only, verify all interfaces
SFR156
4.762x7.938x2.779 mm
FR156
B -0.4mm
SFRW156
4.762x7.938x2.779 mm
FRW156
B -0.4mm

⚙ Typical Applications

Electric motors
Fans and blowers
Pumps
Household appliances
Power tools
Office equipment
General machinery

Why choose NLHB?

NLHB supports both in-house manufacturing and qualified partner sourcing. We confirm the specification, supply route, inspection requirements, and available documentation before quotation.

About NLHB →
4,300+
Models
15+
Years
RFQ
Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of FR156?
The FR156 bearing has bore (d) = 4.762 mm, outer diameter (D) = 7.938 mm, and width (B) = 3.175 mm.
Is there a FR156 drawing or CAD file?
Yes. The FR156 dimension drawing (PDF) is free to download on this page. DXF and 3D STEP files are sent on request: tell us the model and your application.
What is the load rating of FR156?
Dynamic load rating (Cr) = 0.31 kN (307 N), static load rating (C0r) = 0.12 kN.
What tolerance class is the FR156?
The standard tolerance class of the FR156 is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does FR156 belong to?
The FR156 belongs to the MR Miniature Series within the Deep Groove Ball Bearings category.
Can NLHB supply FR156 equivalents from other brands?
Depending on the model and order requirements, NLHB may manufacture in-house or source through qualified partner factories. Interchange and supply route are confirmed against your specification before quotation. All trademarks belong to their respective owners.
How do I order FR156 from NLHB?
Click "Request Quote" and send us your quantity, application, and required specifications. We review the specification, supply route, lead time, and pricing before issuing a quotation. Response time depends on specification complexity.
What materials are available for FR156?
Material grade is confirmed per inquiry. Availability depends on the model, quantity, application, and whether the order is manufactured in-house or sourced through a qualified partner factory. Material certificates or inspection documents are confirmed before quotation when required.

Get a quote for FR156

Send us your quantity, application and target lead time. We confirm spec, interchange and realistic delivery — no order confirmed until you approve.

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