SIFT BEARING STORE CATALOG

3811-B-2RZ-TVHFAGPrecision / Angular Contact

3811-B-2RZ-TVH is a FAG precision / angular contact bearing, bore 55 mm, O.D. 72 mm, width 13 mm. Dimensions, drawing, interchanges and price.

Polyamide cage
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Bore d55mm
Outside dia. D72mm
Width B13mm
Dynamic Cr10.7kN
Static C0r13.1kN
Limiting speed7,200rpm
Weight0.134kg
Cr / C0r0.82
Mean dia. dm63.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 340

3811-B-2RZ-TVH FAG Precision / Angular Contact bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

DdBOutside dia. D72 mmBore d55 mmWidth B13 mm

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

SymbolDimensionmminch
dBore diameter552.1654
DOutside diameter722.8346
BInner-ring / bearing width130.5118
rChamfer (min)0.30.0118

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)55
Outside dia. D (mm)72
Width B (mm)13
Seal outside dia. D2 (mm)69.1

Load ratings & speeds

Basic dynamic load rating Cr (lbs)2405
Basic static load rating Cor (lbs)2945
Basic dynamic load rating Cr (N)10700
Basic static load rating C0r (N)13100
Fatigue limit load Cur (N)730
Limiting speed nG (rpm)7,200
Reference speed nB (rpm)4,850
Effective load centre a (mm)34.9

Weight

Weight (kg)0.134

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)0.3
Shaft shoulder da (mm)57
Housing shoulder Da (mm)70
Housing fillet ra max (mm)0.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 2,400 rpm
42,67564444
61,7832161,500
81,3385123,556
101,0701,0006,944
157133,37523,438

Basic rating life per ISO 281: L10 = (C/P)3 with C = 10,700 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandFAG
Source catalogueFAG / Schaeffler Rolling Bearings HR 1
Catalogue pagep.340 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
3811-B-2RS-TVHFAGPrecision / Angular Contact55721310.7 kN0.134
3811-B-2RSR-TVHFAGPrecision / Angular Contact55721312.1 kN0.09
3811-B-2Z-TVHFAGPrecision / Angular Contact55721312.1 kN0.09
3811-B-TVHFAGPrecision / Angular Contact55721310.7 kN0.13

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
3811-B-2RS-TVHFAGPrecision / Angular Contact55721310.7 kN0.134
3811-B-2RSR-TVHFAGPrecision / Angular Contact55721312.1 kN0.09
3811-B-2Z-TVHFAGPrecision / Angular Contact55721312.1 kN0.09
3811-B-TVHFAGPrecision / Angular Contact55721310.7 kN0.13

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
3211-B-2RSR-TVHFAGPrecision / Angular Contact5510033.358.5 kN0.969
3211-B-TVHFAGPrecision / Angular Contact5510033.358.5 kN0.954
3211-BD-XL-2HRS-TVHFAGPrecision / Angular Contact5510033.361 kN0.933
3211-BD-XL-2Z-TVHFAGPrecision / Angular Contact5510033.361 kN0.93
3211-BD-XL-TVHFAGPrecision / Angular Contact5510033.361 kN0.94
3311-B-2RSR-TVHFAGPrecision / Angular Contact5512049.2102 kN2.35
3311-B-2Z-TVHFAGPrecision / Angular Contact5512049.2102 kN2.36
3311-B-TVHFAGPrecision / Angular Contact5512049.2102 kN2.32

Request a quotation for 3811-B-2RZ-TVH

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.