Type

               Size(mm)

Features

Limiting Speed(rpm)

Application for handpiece

Bore(d)

O.D(D)

Width(B)

SR142-Z

3.175

6.35/5.97

2.38

one-side of dust cover, groove

350000~400000

North Pole Handpiece

SR143-Z

3.175

6.35/5.97

2.78

one-side of dust cover, groove

350000~400000

German Kovo

SR143-ZT

3.175

6.35/5.97

2.78

one-side of dust cover, groove

350000~400000

German Kovo

BSR143-Z

3.175

6.35/5.97

2.78

one-side of dust cover,

integral retainer

350000~400000

German Kovo

SR145-Z

3.175

   6.35

2.38

one-side of dust cover

350000~400000

Northwest Handpiece,

NSK Handpiece

SR145-ZT

3.175

6.35

2.38

one-side of dust cover

350000~400000

Northwest Handpiece, NSK Handpiece

SRJ145-Z

3.175

6.35

2.78

one-side of dust cover

350000~400000

W&H Handpiece, Northwest   Handpiece

SRJ145-ZT

3.175

6.35

2.78

one-side of dust cover

350000~400000

W&H Handpiece, Northwest   Handpiece

FSR146-Z

3.175

6.35/7.5

2.78

one-side of dust cover, flanged

350000~400000

Shanghai Handpiece

FSR146-ZT

3.175

6.35/7.5

2.78

one-side of dust cover, flanged

350000~400000

Shanghai Handpiece

SR148-Z

3.175

7.938

3.571

one-side of dust cover

350000~400000

BeinAir   Handpiece

Remarks: S-Stainless steel inner/outer ring R-Standard   model Z-Dust cover T-Ceramic balls F-Flanged