All Brands
- Basic Parameters
- 638DD
- model
- Miniature Deep Groove Ball Bearing 2
- type
- Overall dimensions
- 8
- d
- 28
- D
- 9.0
- B
- 9.0
- B1
- 0.30
- r(1) min
- 0.30
- Minimum r1 chamfer
- rated load
- 4 550
- Cr
- 1970
- Cor
- 465
- Cr
- 201
- Cor
- Maximum speed
- 28000
- Open-type Z·ZZD dust cover V·VV seal ring
- 22000
- D · DD sealing ring
- 34 000
- Open type z dust cover
- Bearing designation
- 638
- Open-type
- 638 ZZ1
- Shielded dust cover type
- VV DD
- Sealed Seal Ring Type
- installation dimensions
- 10.0
- da Min
- 12.8
- db Max
- 26.0
- Da Max
- 22.8
- .
- 0.30
- ra Max
- 0.30
- b Max
- Mass weight(kg)
- 28.30
- Open-type
- 28.60
- Shielded dust cover
