Which bearings have 12 × 28 × 7 mm boundary dimensions?

Short answer (free to quote): 12 × 28 × 7 mm boundary dimensions appear in 2 part numbers from NTN.

Part number	Brand	Sealing	Clearance	List price
`16001`	NTN	open (no seal)	not listed	JPY 664
`16001JRX`	NTN	open (no seal)	not listed	JPY 649

Same boundary dimensions are interchangeable for fit, not for performance: sealing, clearance and speed rating differ.

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