Bearing dimensions finder
Two ways into the catalog when you are replacing a bearing: start from the bore size on the shaft, or from the exact d×D×B envelope stamped on the old bearing. Every table links to the verified model page with full specifications and cross references.
33 bore sizes 158 interchangeable envelopes Boundary dimensions per ISO 15
Bearings by bore size
Each bore page lists every model in the database with that shaft diameter, grouped by bearing type, with outside diameter, width, seal, clearance and load rating.
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10 mm bore →
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12 mm bore →
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15 mm bore →
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17 mm bore →
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20 mm bore →
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25 mm bore →
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30 mm bore →
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35 mm bore →
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40 mm bore →
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45 mm bore →
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50 mm bore →
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55 mm bore →
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60 mm bore →
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65 mm bore →
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70 mm bore →
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75 mm bore →
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80 mm bore →
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85 mm bore →
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90 mm bore →
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95 mm bore →
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100 mm bore →
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105 mm bore →
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110 mm bore →
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120 mm bore →
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130 mm bore →
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140 mm bore →
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150 mm bore →
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160 mm bore →
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170 mm bore →
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180 mm bore →
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190 mm bore →
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200 mm bore →
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220 mm bore →
Interchangeable envelopes (same d×D×B)
Bearings sharing one ISO 15 boundary envelope are dimensionally interchangeable across series and brands — but load rating, seals and clearance must still be verified before substitution. The most common envelopes: