630 mm x 1030 mm x 400 mm 630 mm x 1030 mm x 400 mm ISB 241/630 ISB Bearing

What are the types UBC Mechanical Electronic Instrument Co., Ltd. of 630 mm x 1030 mm x 400 mm 630 mm x 1030 mm x 400 mm ISB 241/630 ISB Bearing ? ISB Bearing Manufacturing Service . Get 29502-5141 manufacturer catalog number: Your Free, Instant 630 mm x 1030 mm x 400 mm price, design review.

What is 241/630 bearing interchange？