T.J. DaviesJEM # TJD-PS-475
PS-475
CAT40 retention knob, ANSI B5.50, 45°, 5/8-11, solidCAT4045°5/8-11Solid
SpecificationsFrom T.J. Davies's product pages
- Taper
- CAT40
- Style
- ANSI B5.50
- read from the dimensions
- Angle
- 45°
- Thread
- 5/8-11
- Overall length
- 1.500"
- Flange to end of knob
- .640"
- Knob Ø
- .740"
- Neck Ø
- .490"
- Coolant
- Solid
- Socket
- RKS-BTCAT40
Machines
Machines this knob is listed for
CAT40, 45°, ANSI B5.50.Verify firstListed as a guide only. Builders change knob specs between models, years and coolant options, so check your machine’s manual, or send us the make, model and serial number and we’ll confirm before you order. The wrong retention knob can let a holder pull out of the spindle.
| Builder | Machines | Taper |
|---|---|---|
| Fadal | VMC-15, 15XT, 40, 2016, 3016, 3020, 4020, 4525, 6030, 6535, 8030 (CAT40) | CAT40 |
| Mazak | 40-taper VMCs/HMCs: VCN, VTC, VCU, Nexus/VCC, HCN, Variaxis, Integrex, FJV, AJV, Smart 430A (CAT40, post-Jan 1994)Coolant-through takes the builder’s own knob | CAT40 |
| Okuma | Current US-market CAT40 VMCs/HMCs (GENOS M460-VE/M560-V/M660-V, MB-V, MA-H etc.)Coolant-through takes the builder’s own knobBuilder p/n CAT-40U pull studs (Okuma option name) | CAT40 |
T.J. Davies’s own machine guide lists this knob for Hitachi Seiki (CAT40), Hurco (CAT40), Makino (CAT40). T.J. Davies calls its guide general, not a guarantee.
Don’t see your machine? Call the counter at 408-834-8656 with the make, model and serial number and we’ll find the right knob.
T.J. Davies’s dimensions
- Overall length
- 1.500"
- Knob Ø
- .740"
- Neck Ø
- .490"
- Flange to end of knob
- .640"
- Flange to start of thread
- .440"
- Thread
- 5/8-11
- Tightening socket
- RKS-BTCAT40