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NSK Ball Screws for High-Load Drive

HTF-SRD Type

Outline drawing

2-Q (oil hole) T1

φd
φ dr
φD
φA

B
L

HTF-SRD Type Specifications

Lead Shaft dia. Root dia. Basic load rating (kN)
(mm) (mm) (mm)
Model No. d dr Dynamic Static D
HTF-SRD6332-4E r 49 Ca C0a 140
63 115
32 39 233 590 115
140
HTF-SRD5040-6E 40 50 39 195 491 140
175
HTF-SRD5040-8E 40 50 255 679 175

HTF-SRD6340-6E 40 63 49 291 768

HTF-SRD6340-8E 40 63 49 381 1 060

HTF-SRD8050-6E 50 80 63 401 1 180

HTF-SRD8050-8E 50 80 63 526 1 630

Remarks: 1. Please consult NSK if load exceeds the allowable axial load (Fa max.).
2. The right hand screw is the standard. For specifications on left hand screws, contact NSK.
3. The allowable axial load (Fa max.) is determined in accordance with the mounting conditions of ball screws recommended by NSK.
Refer to page 34 for the mounting conditions. If your mounting conditions differ from those provided, please consult NSK.