Stainless bearing inserts

SUC Series AISI 440 C and SSB "Flatback" Series bearing inserts for use in QCB Thermoplastic housings

NBC refDimensionsDynamicStatic
BiBernGdsCCo
mminchmmmmmmmmmmmmmmmmKNKNkg
SUC201-081/24731171.512.718.35M6x0.75106.30.21
SUC20112 4731171.512.718.35106.30.21
SUC202-099/164731171.512.718.35106.30.2
SUC20215 4731171.512.718.35106.30.2
SUC202-105/84731171.512.718.35106.30.2
SUC20317 4731171.512.718.35106.30.18
SUC203-1111/164731171.512.718.35106.30.18
SUC204-123/44731171.512.718.35106.30.17
SUC20420 4731171.512.718.35106.30.17
SUC205-1313/165234.1171.514.319.85117.10.23
SUC205-147/85234.1171.514.319.85117.10.23
SUC205-1515/165234.1171.514.319.85117.10.23
SUC20525 5234.1171.514.319.85117.10.23
SUC205-1615234.1171.514.319.85117.10.23
SUC206-171.1/166238.1191.515.922.2515.210.20.34
SUC206-181.1/86238.1191.515.922.2515.210.20.34
SUC206-191.3/166238.1191.515.922.2515.210.20.34
SUC20630 6238.1191.515.922.2515.210.20.34
SUC206-201.1/46238.1191.515.922.2515.210.20.34
SUC207-201.1/47242.9201.517.525.47M8x120.113.90.5
SUC207-211.5/167242.9201.517.525.4720.113.90.5
SUC207-221.3/87242.9201.517.525.4720.113.90.5
SUC20735 7242.9201.517.525.4720.113.90.5
SUC207-231.7/167242.9201.517.525.4720.113.90.5
SUC208-241.1/28049.22221930.2823160.66
SUC208-251.9/168049.22221930.2823160.66
SUC20840 8049.22221930.2823160.66
SUC209-261.5/88549.22221930.2825.618.10.78
SUC209-271.11/168549.22221930.2825.618.10.78
SUC209-281.3/48549.22221930.2825.618.10.78
SUC20945 8549.22221930.2825.618.10.78
SUC210-291.13/169051.62421932.610M10x1.2527.520.20.91
SUC210-301.7/89051.62421932.61027.520.20.91
SUC210-311.15/169051.62421932.61027.520.20.91
SUC21050 9051.62421932.61027.520.20.91
SUC210-3229051.62421932.61027.520.20.91
NBC refDimensionsDynamicStatic
BiBernGdsCCo
mminchmmmmmmmmmmmmmmmmKNKNkg
SSB201-081/247221216164M6x0.757.54.540.1
SSB20112 472212161647.54.540.09
SSB202-099/16472212161647.54.540.08
SSB20215 472212161647.54.540.08
SSB202-105/8472212161647.54.540.08
SSB20317 472212161647.54.540.08
SSB203-1111/16472212161647.54.540.08
SSB204-123/44725141.57185106.30.13
SSB204203/44725141.57185106.30.13
SSB205-147/85227151.57.519.55117.10.18
SSB205-1515/165227151.57.519.55117.10.17
SSB20525 5227151.57.519.55117.10.16
SSB205-1615227151.57.519.55117.10.16
SSB206-181.1/86230161.5822615.210.20.26
SSB206-191.3/166230161.5822615.210.20.26
SSB20630 6230161.5822615.210.20.26
SSB206-201.1/46230161.5822615.210.20.26
SSB207-201.1/472321728.523.57M8x120.113.90.4
SSB207-211.5/1672321728.523.5720.113.90.4
SSB207-221.3/872321728.523.5720.113.90.4
SSB20735 72321728.523.5720.113.90.4
SSB207-231.7/1672321728.523.5720.113.90.4
SSB208-241.1/28034182925823160.6
SSB208-251.9/168034182925823160.6
SSB20840 8034182925823160.6
SSB209-261.5/88541.219210.231925.618.10.8
SSB209-271.11/168541.219210.231925.618.10.8
SSB209-281.3/48541.219210.231925.618.10.8
SSB20945 8541.219210.231925.618.10.8
SSB210-301.7/89043.520210.932.69M10x1.2527.520.20.95
SSB210-311.15/169043.520210.932.6927.520.20.95
SSB21050 9043.520210.932.6927.520.20.95
SSB210-3229043.520210.932.6927.520.20.95

SUC insert limiting speeds

The limiting speed of any ball bearing insert is, for practical purposes, determined by the quality of fit between the inner ring and the shaft.

QCB RefShaft tolerance
j7h7h8h9
SUC 2016700530038001400
SUC 2026700530038001400
SUC 2036700530038001400
SUC 2046000480034001200
SUC 2055600400030001000
SUC 206450034002400850
SUC 207400030002000750
SUC 208360026001900670
SUC 209320024001700600
SUC 210300022001600560
SUC 211260020001400500
SUC 212240018001200450

Setscrew tightening torque

The 2 setscrews should be tightened to the appropriate torque figure. Over tightening may result in a fracture developing in the inner ring.

Should the axial load be high, a small dimple in the shaft may improve the locking effect, but beware of introducing unwanted stress concentration factors.

For best axial load carrying capacity the bearings should be mounted against a shoulder in the shaft.

SizeTorque (Nm)
M64
M88
M1015

Materials

QCB® Stainless Steel bearing units are made in high quality stainless steel for maximum corrosion resistance.

All pillow blocks and flange units have a solid base and smooth exterior surface restrict the growth of bacteria.

PartMaterial
bearing insertInner and outer ringsStainless steelAISI 440C
BallsAISI 440 C
Cage/retainerAISI 321
Flinger sealAISI 321
Set screwsSU 304
Rubber sealsNitrile rubber
HousingHousing bodyStainless steelAISI 440 C
Grease nippleAISI 304

Food Grade Lubricant

QCB® Stainless Steel SUC inserts are lubricated with KLUBER PARALIQ GA343 grease

Under normal operating conditions, the suggested relubrication intervals are tabulated below (ndm = average diameter x rpm)

ndm valueEnvironmental conditionsTemperatureRelubrication interval
< 40 000Clean-15 to +65 °C6 - 12 months
+65 to +100 °C2 - 6 months
< 70 000Clean-15 to +65 °C2 - 6 months
+65 to +100 °C1 month
AnyDirty / Water splashAny1 month

Operating temperature range

QCB® Stainless Steel inserts can operate in environments from -30 to + 120C


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