Round and Rectangular Racks and Pinions Section Contents

Product Overview Accurate conversion from rotary to linear motion A rack and pinion system gives the ability to transfer rotary to linear motion, with all the accuracy expected of a geared system. The racks are manufactured from ground, hardened stainless steel or ground stainless steel and available with a choice of accuracies, pitches, and lengths, plus the facility to provide modifications such as flats, journals or custom ends. Hobbed stainless steel and brass racks are also available. The rack pinions are plain or anti-backlash, also with a choice of accuracies, pitches, bore sizes, alternative...

Precision Ground Rack Hardened Rectangular Associated Products Rack pinions: page 6-10 All dimensions in mm Material: Stainless steel grade 416 Treatment: Hardened to 35-45 HRc Pressure angle 20° Part number selection table Circular Pitch (mm) Technical support • Cumulative pitch error less than 0.008 mm per 300 mm • Ground teeth, accuracy grade 4 as standard • Alternative grades available - see page T6-1 • Unlimited axis lengths possible by setting individual racks together • Shorter lengths available • Alternative pitches, including module • Small quantities of selected items available ex-stock,...

Precision Ground Rack Hardened Round Associated Products Rack pinions: page 6-10 All dimensions in mm General tolerances ±0.13 mm Material: Linear bearing shaft stainless steel grade 440C or X90CrMoV18 Treatment: Case hardened to 55 HRc min Pressure angle 20° Part number selection table Part Number * Rack thrust based on meshing with a 60 tooth hardened rack pinion, theoretically calculated. Technical support Cumulative pitch error less than 0.025 mm Ground teeth, accuracy grade 3 as standard Higher accuracy grades available Bearing surface and drive in one component Shorter lengths available...

Precision Ground Rack Soft Round Solid 1mm Circular Pitch 0.5 Module Associated Products Rack pinions - CP: page 6-10 Rack pinions - Module: page 4-12 All dimensions in mm General tolerances ±0.13 mm Material: Stainless steel grade 300 Pressure angle 20° Part number selection table Part Number RRS06-1M-500 RRS10-050-500 Length Outer Dia Bore Dia L ØD Ød * Rack thrust based on meshing with a 50 tooth stainless steel pinion, 3 N if used with a 50 tooth PEEK polymer pinion. Technical support Cumulative pitch error less than 0.050 mm Ground teeth, accuracy grade 2 as standard High resistance to pitting...

Precision Ground Rack Soft Round Tubular All dimensions in mm Associated Products General tolerances ±0.13 mm Rack pinions - CP: page 6-10 Material: Stainless steel grade 316 Rack pinions - Module: page 4-12 Part number selection table Rack thrust based on meshing with a 50 tooth stainless steel pinion, 3 N if used with a 50 tooth PEEK polymer pinion. ■ Cumulative pitch error less than 0.050 mm ■ Ground teeth, accuracy grade 2 as standard ■ High resistance to pitting corrosion ■ Hollow shaft allows for the passage of fluids, ■ Ideal for medical and scientific applications ■ Bearing surface and...

Precision Hobbed Rack Soft Round Associated Products Rack pinions: page 4-12 All dimensions in mm Material: Stainless steel grade 304 Pressure angle 20° Part number selection table Part Number ORK50SU2-0815 ORK75SU2-0815 ORK80SU2-0815 ORK1SU3-1024 Technical support • PTFE based grease is recommended for lubrication • Installation information - see page T6-4 • Technical information - see pages T6-1 to T6-6 • For modified or fully bespoke racks, please contact us • Longer tooth lengths available, please contact us • Small quantities of selected items available ex-stock, please visit our on-line...

Precision Hobbed Rack Soft Rectangular 0.5, 0.75, 0.8 & 1.0 Module All dimensions in mm Material: Stainless steel grade 304 Pressure angle 20° Associated Products Rack pinions: page 4-12 Part number selection table Part Number RK50SU2-0310 RK50SU2-0808 RK75SU2-0310 RK75SU2-0808 RK80SU5-0510 RK1SU5-0810 Technical support • Racks are manufactured from cold drawn stainless steel • Small quantities of selected items available ex-stock, please visit our on-line store: www.reliance.co.uk/shop • PTFE based grease is recommended for lubrication • Installation information - see page T6-4 • Technical information...

Hobbed Brass Rack Associated Products All dimensions in mm Rack pinions: page 4-12 Material: Brass grade CuZn39Pb3 Part number selection table • Brass racks, ideal for lightly loaded applications, an economic balance of accuracy and load capacity against cost • Manufactured from cold drawn material • Small quantities of selected items available ex-stock, please visit our on-line store: Technical support • Installation information - see page T6-4 • Technical information - see pages T6-1 to T6-6 • For modified or fully bespoke racks, please Contact us for product information, design support and...

Plain and Hardened Rack Pinions All dimensions in mm General tolerances ±0.13 mm Material: Hardened pinions - 17-4 PH, 35-42HRc Plain pinions - Stainless steel 316 Pressure angle 20° Associated Products Racks: page 6-3 Part number selection table Example Part No:- Basic Part Number Plain Hardened SH1MS2B6F7ASH1MS8B6F7ASH2MS2B6F7ASH2MS8B6F7ASH25MS2B6F7ASH25MS8B6F7ASH1MS2B10F7ASH1MS8B10F7ASH2MS2B10F7ASH2MS8B10F7ASH25MS2B10F7ASH25MS8B10F7A- • Standard accuracy AQ10 - see page T4-1 • Hardened pinions provide longer pinion life, higher load capacity and higher thrust • Higher accuracies available...

Anti-Backlash Rack Pinions Associated Products Racks: page 6-3 All dimensions in mm General tolerances ±0.13 mm Pressure angle 20° Material: Stainless steel 316 Part number selection table Example Part No:- Basic Part Number AH1MS2B6F89AAH2MS2B6F89AAH25MS2B6F89A- • Standard accuracy AQ10 - see page T4-1 • Higher accuracies available • Ideal for use with Reliance soft and hardened, round and rectangular racks • Ideal for lightly loaded measurement applications • Alternative pitches available • Alternative bore sizes, including imperial available • Alternative materials available • Special wear...