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								Tel:0086-29-88332871
							    Fax:0086-29-88338589
								E-mail:tang@hthbearing.com
								Address:Room 1101, Block 9 Taihua Jinmao International Plaza, No.16 South of Fenghui  Road, High-tech Zone, Xi’an, Shaanxi Province, China
                               
								
							
						Product size and parameters
			| Bearing Number | Boundary dimensions(mm) | Mass(Kg) | ||||||||||||
| WN | D H8 | a | b | c | g H12 | h h12 | L | W | n | m | u | v | s | (Approx.) | 
| SD634 | 360 | 740 | 270 | 65 | 130 | 210 | 300 | 420 | 170 | 610 | 36 | 55 | M30 | 140 | 
| SD636 | 380 | 780 | 290 | 70 | 136 | 255 | 320 | 450 | 180 | 640 | 43 | 62 | M36 | 170 | 
| SD638 | 400 | 820 | 300 | 70 | 142 | 240 | 330 | 475 | 190 | 680 | 43 | 62 | M36 | 200 | 
| SD640 | 420 | 860 | 320 | 85 | 148 | 250 | 350 | 500 | 200 | 710 | 43 | 62 | M36 | 230 | 
| SD644 | 460 | 920 | 330 | 85 | 155 | 280 | 360 | 550 | 210 | 770 | 43 | 62 | M36 | 290 | 
| SD648 | 500 | 990 | 370 | 100 | 165 | 300 | 390 | 590 | 230 | 830 | 50 | 70 | M42 | 350 | 
| SD652 | 540 | 1060 | 390 | 100 | 175 | 325 | 410 | 640 | 250 | 890 | 50 | 70 | M42 | 450 | 
| SD656 | 580 | 1110 | 420 | 110 | 185 | 355 | 440 | 690 | 270 | 930 | 58 | 77 | M48 | 550 | 
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